Much of the daily heat for greenhouses will come from the sun, but if you want your greenhouse to be more than a few degrees above the outside temperature at night, you will need to provide it with a heat source. The most popular heating systems are be fueled by electricity, propane, or natural gas. The choice of a heating system and fuel depends on what is locally available, the heating requirements of the plants, cost, and individual choice. Heating requirements for your greenhouse can be determined with our Greenhouse Heater Size Calculator. Choose from our assortment of top quality electric and gas heating options below.


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Sterling XF400 Gas Unit Heater sterling, xf400, tf400, heater, gas, propane, tf, xf, furnace, greenhouse, shop, natural, warehouse, beacon, morris
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Price: $1,939.00
Availability: In stock

    The Sterling XF series gas unit heaters replace the TF and SF series heaters and combine them into one unit that can be vented as standard open combustion (Exhaust pipe only) or separated combustion (Using both an exhaust and intake pipe). They are a great heating option for large greenhouses, warehouses, commercial structures, etc. Sterling XF heaters feature: tubular heat exchanger, power exhaust system, electronic ignition, advanced diagnostic system for dependable worry-free operation,...

    Williams DV Heater Vent Extension Kit
    Price: $65.00
    Availability: In stock
    Item #: 410017 -

      Williams DV heater vent extensions allow the heaters to be vented through walls over 9" thick. Kits are availabe in 15" and 24" lengths. 24" is the maximum venting distance allowed for the DV heaters. Kit Specifications Model 9301 - 15" extension for DV22 & DV30 heatersModel 9302 - 24" extension for DV22 heaterModel 9303 - 24" extension for DV14 & DV30 heatersModel 9304 - 15" extension for DV14 heater Item # 4100170, 4100172, 4100174, 4100176 ...

      ACF Programmable Plug in Thermostat
      Retail: $59.95
      Price: $49.95
      Availability: In stock
      Item #: 4820530 -

        This thermostat is very accurate and can be used to control 110/120 volt heating or cooling appliances (15 amp max). To operate, simply plug it into an outlet, and plug your appliance into the front of the thermostat! This energy-saving thermostat has up to 4 different daily temperature settings during weekdays and another 4 on weekends. The thermostat can be set to automatically lower the night temperature and raise it in the morning and you will have 2 extra settings that can be set to...

        JDDT1 Adjustable Digital Thermostat (Wired) thermostat, water, proof, greenhouse, remote, sensor, j&d, temperature, control, digital, adjustable
        Retail: $110.00
        Price: $95.00
        Availability: In stock
        Item #: 4820075 -

          This thermostat is very accurate and can be used to control heating or cooling equipment. It has a NEMA 4X waterproof enclosure which was developed with harsh greenhouse environments in mind (it can even be used outdoors). The JDDT1 thermostat has a 10' waterproof temperature sensor which allows you to control temperatures remotely, and it retains settings in memory in case of power failure. The current temperature is shown on the digital display when thermostat is on. FeaturesHuge temperature...

          JDDT1 Adjustable Plug In Digital Thermostat  J&D, thermostat, digital, plug, in, portable, cord, jddt, greenhouse, waterproof, outdoor, remote, sensor
          Retail: $128.00
          Price: $109.00
          Availability: In stock
          Item #: 4820076 -

            This thermostat is very accurate and can be used to control heating or cooling equipment. It has a NEMA 4X waterproof enclosure which was developed with harsh greenhouse environments in mind (it can even be used outdoors). The JDDT1 thermostat has a 10' waterproof temperature sensor which allows you to control temperatures remotely, and it retains settings in memory in case of power failure. The current temperature is shown on the digital display when thermostat is on. Comes with 6' plug in...

            LuxPRO Low Voltage Heating Thermostat
            Retail: $36.89
            Price: $25.95
            Availability: In stock
            Item #: 4820510 -

              This thermostat can be used with heating and/or cooling appliances and adds both an on/off switch which allows it to cut the appliance off when not in use and auto fan switch which allows you to run the fan on heaters like the Modine and Sterling units continuously and act as a circulation fan. A useful feature in the summer and winter.Thermostat has a temperature range of 50° to 90° F, a separate thermometer display for determining room temperature, and require wiring.Features50° to 90° F...

              Portable Thermostatic Outlets
              Retail: $24.00
              Price: $19.95
              (2)
              Availability: In stock

                Need an inexpensive and simple thermostat? Thermostatic outlets are the answer. These unique devices plug into a standard electrical outlet and have an internal preset thermostat. Outlets come in two models. The Cooling outlet supplies power at 78° and cuts off at 70° and works great for all types of fans including exhaust, circulation, window, attic, and ceiling fans. The Heating outlet supplies power at 35° and cuts off at 45° and is great for automating heaters to keep room temperatures...

                RobertShaw Programmable Heating Thermostat thermostat, heating, low, voltage, programmable, digital, thermastat, best, heater, heat, 24
                Price: $44.95
                Availability: In stock
                Item #: 4820085 -

                  This energy-saving thermostat has up to 4 different daily temperature settings during weekdays and another 4 on weekends. The thermostat can be set to automatically lower the night temperature and raise it in the morning and you will have 2 extra settings that can be set to automatically raise or lower the temperature anytime you want! Unit also allows an appliance to be cut off when you do not want it to be thermostatically controlled and includes a switch which can run the fan on heaters...

                  Sterling Nexus HU Concentric Vent Kit sterling, heater, nexus, hu, high, efficiency, 90%, 90, gas, pvc, vent, pipe, concentric, kit, flue
                  Free Shipping
                  Price: $115.00
                  Availability: In stock

                    Concentric vents make it easier to have a two-pipe installation for high efficiency furnaces. These vents simplify installation and only require one hole through the wall or roof where the pipes terminate. Without using these vents, the installation would require cutting two holes through the home, one for each pipe. These vents save time and money by reducing the amount of work required. Available in 2", 3", or 4" intake vent sizes. Vent Size Fits Nexus Models 2" HU50, HU100, HU150 3" HU200...

                    SureStat T130P Portable Thermostat + Remote Sensor thermostat, water, proof, greenhouse, remote, sensor, surestat, temperature, control, plug, in, portable
                    Sale!
                    Retail: $59.95
                    Price: $49.95
                    Availability: In stock
                    Item #: 4820425 -

                      This thermostat comes prewired with a 5' remote sensor and a 8' cord with plug-in. Simply plug the thermostat into a standard 110/120 volt outlet. Then plug any 110/120 volt appliance into the outlet on the plug of the thermostat. This model is only available setup for heating but can be rewired for cooling (see instructions). *Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats. Features Widest temperature range: 30° to 110° F 5' waterproof remote sensor...

                      SureStat TS110 Waterproof Heating / Cooling Thermostat
                      Sale!
                      Retail: $36.89
                      Price: $29.95
                      (4)
                      Availability: In stock
                      Item #: 4820930 -

                        SureSTAT TS110 thermostats have a watertight enclosure making them an excellent option for wet environments. The single stage thermostat can be used to automatically control ventilation fans or heaters. This thermostat was developed with the harsh greenhouse environment in mind. Temperature coil is stainless steel to prevent corrosion. SPDT switch. Wiring required. Features Wide temperature range: 30° to 110° F Fixed 3 degree temperature differential Can be used with millivolt, 12, 24 and 120...

                        SureStat TS116 Plug In Portable Thermostat Control thermostat, plug, in, portable, control, heater, fan, greenhouse, garage, shop, room, home, ac
                        Sale!
                        Retail: $58.95
                        Price: $44.95
                        (7)
                        Availability: In stock

                          This single stage thermostat comes prewired with an 6' grounded Plug-in power cord. Simply plug the thermostat into a standard 110/120 volt outlet. Then plug any 110/120 volt appliance into the outlet on the plug of the thermostat. Select heating thermostat to control a heater or cooling thermostat to control fans and/or louvers. *Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats. FeaturesWide temperature range: 30° to 110° FFixed 3 degree...

                          SureStat TS200 2 Stage Thermostat Control thermostat, 2, two, stage, control, heating, cooling, water, proof, tight, weather, greenhouse, wet
                          Retail: $66.55
                          Price: $49.95
                          Availability: In stock
                          Item #: 4820910 -

                            This thermostat has a watertight enclosure making them an excellent option for wet environments. The two stage thermostat can be used to automatically open motorized louvers before cutting on an exhaust fan(s), stage multiple fan or heater systems, or operate multiple speed exhaust fans that do not already have a built-in control. Wiring required. Features Wide temperature range: 30° to 110° F Fixed 3 degree temperature differential between stages Can be used with millivolt, 12, 24 and 120...

                            SureStat TS306H Portable Thermostat + Remote Sensor thermostat, water, proof, greenhouse, remote, sensor, surestat, temperature, control, plug, in, portable
                            Retail: $64.95
                            Price: $55.95
                            Availability: In stock
                            Item #: 4820925 -

                              This thermostat comes prewired with a 5' remote sensor and a 6' cord with plug-in. Simply plug the thermostat into a standard 110/120 volt outlet. Then plug any 110/120 volt appliance into the outlet on the plug of the thermostat. This model is only available setup for heating but can be rewired for cooling (see instructions). *Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats. Features Widest temperature range: 0° to 120° F 5' waterproof remote sensor...

                              Flexible Gas Heater Connector Kit gas, pipe, flexible, connector, heater, 1/2, kit, package, set, 24", stainless, steel
                              Price: $39.00
                              Availability: In stock
                              Item #: 4005010 -

                                This kit makes installing the gas line to a heater quick and easy. Just bend the 24" flexible gas line as needed to connect the heater valve to the existing gas pipe. The included gas shut-off provides easy on/off control of gas to your heater, and the side tap allows you to check the incoming gas pressure before it reaches your heater (higher than recommended pressures can damage the gas valve on a heater). All parts are certified for use with gas heaters up to 150,000 BTU input. Kit...

                                Honeywell 2 Stage Thermostat
                                Price: $129.00
                                Availability: In stock
                                Item #: 4820087 -

                                  This programmable thermostat offers 2 stage heating control. Weekday/Weekend programming - use as a 5-1-1 (Weekdays, Saturday, Sunday) or 5-2 (Weekdays, Weekend) programmable thermostat, whichever best fits your lifestyle. Can be powered by appliance and/or batteries. Wiring required. Thermostat Features Wide temperature range: 40° to 90° F Fixed 1 degree differential between stages Auto fan switch Can be used with millivolt and 24 volt appliances Large, clear, backlit display - easy to read...

                                  Horizontal Pipe Kit for Sterling GG Concentric Vent sterling, gg, beacon, morris, concentric, vent, kit, flue, exhaust, pipe, horizontal, category, 3, UL, stainless
                                  Free Shipping
                                  Retail: $210.00
                                  Price: $189.00
                                  (2)
                                  Availability: In stock

                                    These kits include all of the pipe and fittings needed for horizontal venting of the Sterling GG gas heaters equipped with the concentric vent kit (up to a 5' exhaust run).The horizontal pipe kits include: (items in red text shown in picture above) 5' of UL1738 stainless steel exhaust pipe (35" adjustable length pipe + 24" pipe) UL1738 stainless steel heater adapter 4' of interior galvanized intake pipe- 4" for models GG30, GG45, GG60, and GG75- 5" for models GG90, GG105, and GG120 2' of...

                                    Quick Sling Flush Mount Hanging Kit
                                    Free Shipping
                                    Retail: $145.00
                                    Price: $115.00
                                    Availability: In stock
                                    Item #: 4005020 -

                                      Ask yourself this question, How do I install a unit heater to a finished ceiling? Before now, there was no good answer to that question. The Quick Swivel solves that challenge quickly and efficiently. They mount in mere minutes, and they swivel 360 degrees allowing you to be able to direct heat output as required and lock it in place for safety. The Quick Swivel technology allows the installer amazing flexibility to maximize efficiency with the proper directional unit output. Either model will...

                                      Quick Sling U Mount Hanging Kit
                                      Free Shipping
                                      Retail: $145.00
                                      Price: $119.00
                                      Availability: In stock
                                      Item #: 4005025 -

                                        Ask yourself this question, How do I install a unit heater to a finished ceiling? Before now, there was no good answer to that question. The Quick Swivel solves that challenge quickly and efficiently. They mount in mere minutes, and they swivel 360 degrees allowing you to be able to direct heat output as required and lock it in place for safety. The Quick Swivel technology allows the installer amazing flexibility to maximize efficiency with the proper directional unit output. Either model will...

                                        Sterling GG Concentric Vent Kit sterling, gg, beacon, morris, concentric, vent, kit, flue, exhaust, separated, combustion, sealed, AS-X7-4, AS-X7-5, ASX7
                                        Free Shipping
                                        Price: $239.00
                                        (2)
                                        Availability: In stock

                                          Sterling GG heaters can be converted to separated combustion when this kit is added to the heater. Separated combustion heaters draw combustion air from outside to ensure that the unit will always have plenty of fresh clean air. The fresh air supply reduces common concerns about dusty, dirty, or high humidity applications. You can also decrease heating costs by as much as 10% because no cold outside air is being sucked into the structure when the heater is running. Pipe must be purchased...

                                          SureStat T110 Weatherproof Heating / Cooling Thermostat thermostat, water, proof, greenhouse, remote, sensor, surestat, temperature, control
                                          Price: $39.95
                                          (3)
                                          Availability: In stock
                                          Item #: 4820400 -

                                            This thermostat has a weatherproof enclosure making them an excellent option for wet environments. The single stage thermostat can be used to automatically control ventilation fans or heaters. This thermostat was developed with the harsh greenhouse environment in mind. Temperature coil is stainless steel to prevent corrosion. SPDT switch. Wiring required. Features Wide temperature range: 30° to 110° F Fixed 3 degree temperature differential Can be used with millivolt, 12, 24 and 120 volt...

                                            SureStat T118P Plug In Portable Thermostat Control thermostat, plug, in, prewired, cord, line, voltage, heater, fan, cooling, control, portable, 110, 120
                                            Price: $55.95
                                            (4)
                                            Availability: In stock
                                            Item #: 4820410 -

                                              This single stage thermostat comes prewired with an 8' grounded Plug in power cord. Simply plug the thermostat into a standard 110/120 volt outlet. Then plug any 110/120 volt appliance into the outlet on the plug of the thermostat. Select heating thermostat to control a heater or cooling thermostat to control fans and/or louvers. *Plug-in thermostats can not be used with our gas heaters. They require 24 volt thermostats. Features Wide temperature range: 30° to 110° F Fixed 3 degree...

                                              Vertical Pipe Kit for Sterling GG Concentric Vent sterling, gg, concentric, vent, kit, flue, exhaust, ,vertical, pipe, beacon, morris, venting, heater, gas
                                              Free Shipping
                                              Retail: $358.00
                                              Price: $329.00
                                              Availability: In stock

                                                These kits include all of the pipe and fittings needed for vertical venting of the Sterling GG gas heaters equipped with the concentric vent kit (up to a 5' exhaust run).The vertical pipe kits include: (items in red text shown in picture above) 5' of UL1738 stainless steel exhaust pipe(35" adjustable length pipe + 24" pipe) UL1738 stainless steel tee with condensate cap UL1738 stainless steel heater adapter 2' of interior galvanized intake pipe- 4" for models GG30, GG45, GG60, and GG75- 5" for...

                                                45 Degree Elbow Set for Concentric Vent
                                                Price: $64.00
                                                (1)
                                                Availability: In stock

                                                  This elbow set allows mounting of the Sterling GG heater at a 45 degree angle when venting horizontally with the concentric vent kit. It includes a stainless steel category III 45 degree elbow for the exhaust and an adjustable galvanized elbow for the combustion (inlet) air. Sterling GG30, GG45, GG60, and GG75 use 4" elbows. Sterling GG90, GG105, and GG120 use 5" elbows. Item # 4610147, 4610157

                                                  Modine HD Category 3 Horizontal Vent Kits modine, heater, hd, hot, vent, kit, exhaust, category, 3, III, stainless, steel, UL, 1738, system venting, pipe, package, mr, big, maxx, heatstar, enerco, dayton, lennox
                                                  Price: $195.00
                                                  (2)
                                                  Availability: In stock

                                                    3" venting is for Modine models HD30, HD45, HD60, & HD754" venting is for Modine models HD100 & HD125Each vent system comes complete with everything needed to vent a Modine Hot Dawg heater.These 3' stainless steel, gas tight vent systems are approved by Modine for horizontal installation in residential and commercial applications for HD model heaters. Most durable, longest lasting, and lowest maintenance vent system available for Modine Hot Dawg heaters. Modine Garage / Shop Vent Kit...

                                                    Sterling GG Category 3 Horizontal Vent Kits  sterling, gg, beacon, morris, vent, kit, category, horizontal, stainless, steel, flue, exhaust, cat, III, mr, big, maxx, heatstar, dayton
                                                    Free Shipping
                                                    Price: $245.00
                                                    Availability: In stock

                                                      For Sterling models GG30, GG45, GG60, GG75, GG90, GG105, & GG120Each vent system comes complete with everything needed to vent a Sterling GG heater. These stainless steel, gas tight 4" vent systems are approved by Sterling for horizontal installation in residential and commercial applications for GG model heaters. These are the most durable, longest lasting, and lowest maintenance vent systems available for these gas heaters. All vent systems are for horizontal venting of all Sterling GG gas...

                                                      Sterling TF / XF Category 3 Horizontal Vent Kits sterling, tf, xt, beacon, morris, vent, kit, category, horizontal, stainless, steel, flue, exhaust, cat, III, dayton
                                                      Free Shipping
                                                      Price: $325.00
                                                      Availability: In stock
                                                      Item #: 4610175 -

                                                        This 5" vent kit is for Sterling TF100, TF125, TF150, TF175, TF200, TF250, XF100, XF125, XF150, XF175, XF200, and XF250 models. (Not for use with Sterling XF Concentric Vent Kits)Each vent system comes complete with everything needed to vent the Sterling TF and XF series heaters. These stainless steel, gas tight vent systems are approved by Sterling for horizontal venting applications for these gas heaters. These are the most durable, longest lasting, and lowest maintenance vent systems...

                                                        Sterling TF Horizontal Vent Kit sterling, vent, kit, tf, heater, horizontal, pipe, greenhouse
                                                        Free Shipping
                                                        Price: $119.00
                                                        (1)
                                                        Availability: In stock

                                                          These horizontal vent kits are for side wall venting the Sterling TF series heaters. All pipe and fittings are galvanized steel. Enough piping is included for up to a 6' run.The Sterling TF vent kit includes: 2' of type B vent pipe 4' of single wall vent pipe Type B wall thimble Sterling approved horizontal vent cap 90° elbow Tube of high temp silicone sealant Assembly hardware, and instructions The 5" Kit is for Sterling TF100, TF125, TF150, TF175, TF200, & TF250 models. The 6" Kit is for...

                                                          Sterling XF Concentric Vent Kit  sterling, xf, concentric, vent, kit, flue, exhaust, separated, combustion, sealed, X7-H5, X7-H6, X7-V5, X7-V6
                                                          Free Shipping
                                                          Price: $299.00
                                                          Availability: In stock

                                                            These concentric vent kits for the Sterling XF heaters allow both the air intake and exhaust to vent through the outside wall of your structure with only one hole. Piping must be purchased separately. Concentric kits are available for horizontal or vertical venting. Concentric vent kits include: (shown above) Concentric vent boxInlet air screen or capDeflector discVent capExhaust pipe gasketsHigh-temp silicone Please note: The concentric vent kit does not include any piping. Pipe and fittings...

                                                            5" Stainless Steel Category 3 Vent Wall Pass Through vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, thimble, wall, pass, through
                                                            Price: $75.00
                                                            Availability: In stock
                                                            Item #: 4651335 -

                                                              The wall pass through is for 5" pipe and walls 4 1/4" to 8 1/2" thick (extensions are available for thicker walls). A storm collar is recommended to seal around it and the vent pipe. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV...

                                                              Stainless Steel Category 3 Adjustable Length Vent Pipe vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category
                                                              Price: $45.00
                                                              Availability: In stock

                                                                Adjustable vent pipes can slide in and out of a standard vent pipe giving you an adjustable length. The amount of adjustment available depends on the length of the pipe it is connected to. NOTE: 2 adjustable vent pipes can't be connected together. Requires at least 4” overlap for a secure connection. Vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from...

                                                                Stainless Steel Category 3 Heater Vent Adapter vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, adapter
                                                                Price: $32.00
                                                                Availability: In stock

                                                                  This piece is required when using our Category III venting. The heater adapter has gaskets on both ends and secure the venting to the heater. Adapters fit most standard gas unit heaters including: Modine, Sterling, and Dayton brands. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and...

                                                                  Stainless Steel Category 3 Standard Vent Pipe vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category
                                                                  Price: $24.00
                                                                  (1)
                                                                  Availability: In stock

                                                                    The stainless steel heater vent pipe is available in several different sizes and lengths. If you do not find the exact length needed, adjustable length pipes are also available. Vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is...

                                                                    Stainless Steel Category 3 Vent 30 Degree Elbow vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, elbow, 30, degree
                                                                    Price: $51.00
                                                                    Availability: In stock

                                                                      The 30 degree elbow allows installation of a gas heater at a 30 or 60 degree angle inside the structure. The angle is not adjustable. This stainless steel vent pipe fitting features a patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a...

                                                                      Stainless Steel Category 3 Vent 45 Degree Elbow vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, elbow
                                                                      Price: $53.00
                                                                      Availability: In stock

                                                                        The 45 degree elbow allows installation of a gas heater at a 45 degree angle inside the structure. The angle is not adjustable. This stainless steel vent pipe fitting features a patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a US...

                                                                        Stainless Steel Category 3 Vent 5" Universal Drain vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, drain, condensate
                                                                        Price: $79.00
                                                                        Availability: In stock
                                                                        Item #: 4651330 -

                                                                          The universal drain is used to drain condensation if you do not have a 1/4" for foot downward slope in your horizontal vent line or in vertical venting applications also. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting...

                                                                          Stainless Steel Category 3 Vent 90 Degree Elbow vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, elbow
                                                                          Price: $62.00
                                                                          Availability: In stock

                                                                            The 90 degree elbow allows installation of a gas heater at a 90 degree angle inside the structure. It can also be used if vertical runs are needed as well. The angle is not adjustable. This stainless steel vent pipe fitting features a patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV...

                                                                            Stainless Steel Category 3 Vent Adjustable Wall Thimble + Pipe vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, thimble
                                                                            Price: $74.00
                                                                            Availability: In stock

                                                                              This unique wall thimble has a built-in 18" section of adjustable pipe which goes to the inside of your structure giving you a lot of flexibility when running the vent pipe to your heater. The pipe is also sealed to the thimble so there is no air leakage to worry about. This thimble is for walls 4 1/4" to 8 1/2" thick (extensions are available for thicker walls). The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional...

                                                                              Stainless Steel Category 3 Vent Drip Tee vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, tee, drip
                                                                              Price: $47.00
                                                                              Availability: In stock

                                                                                The drip tee is used to drain condensation if you do not have a 1/4" for foot downward slope in your horizontal vent line. Drip tee are for horizontal installations only. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting...

                                                                                Stainless Steel Category 3 Vent Firestop Flashing vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, flashing
                                                                                Price: $26.00
                                                                                Availability: In stock

                                                                                  Firestop flashings are recommended for venting through combustible walls less than 4" thick. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a US standard for gas venting...

                                                                                  Stainless Steel Category 3 Vent Screened Termination Tee vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, tee, termination
                                                                                  Price: $48.00
                                                                                  Availability: In stock

                                                                                    Used for standard and high-wind through-the-wall terminations. Comes with built-in screens to keep birds out. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a US standard for...

                                                                                    Stainless Steel Category 3 Vent Storm Collar vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, storm, collar
                                                                                    Price: $22.00
                                                                                    Availability: In stock

                                                                                      The storm collar is used to create a seal around the vent pipe and the firestop flashing or wall pass through. No collar is needed with the adjustable wall thimble. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a US standard for gas venting systems required in category III applications. Category III refers to positive vent pressure which is created by exhaust blowers in unit heaters. These vent systems must be...

                                                                                      Stainless Steel Category 3 Vent Tee vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, tee
                                                                                      Price: $53.00
                                                                                      Availability: In stock

                                                                                        Firestop flashings are recommended for venting through combustible walls less than 4" thick. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for category II, III and IV venting applications. What is UL 1738? In short, it is a US standard for gas venting...

                                                                                        Stainless Steel Category 3 Vent Tee Condensate Cap vent, flue, duct, pipe, furnace, exhaust, gas, modine, sterling, heater, category, tee, condensate, cap
                                                                                        Price: $26.00
                                                                                        Availability: In stock

                                                                                          Condensate caps are designed to be used with the Tee fittings in vertical or horizontal venting systems. It is placed in the lowest port of the Tee and collects any condensate that forms in the venting. The stainless steel heater vent pipe and fittings feature patented built-in mechanical locking band and triple-lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90° from mechanical locking bands. All pipe and fittings are UL1738 approved for...

                                                                                          Stainless Steel Category 3 Wall Thimble Extension
                                                                                          Price: $18.95
                                                                                          Availability: In stock

                                                                                            The wall thimble extension is used to add 6” of length to Wall Pass Through and Wall Thimble for thicker walls. Item # 4650155, 4651155, 4651350

                                                                                            120v Standing Pilot Gas Valve for Modine Heaters
                                                                                            Price: $195.00
                                                                                            (1)
                                                                                            Availability: In stock
                                                                                            Item #: 4034220 -

                                                                                              This is a replacement valve used in Modine PA standing pilot heaters that have 120 volt controls (Pre 1980 models). Each valve comes setup for natural gas and includes kit to convert to propane. This is a White Rodgers gas valve with 3/4" x 3/4" openings and comes with 1/2" reducers bushings for the inlet and outlet so it can be used with any size unit.

                                                                                              24v Standing Pilot Gas Valves for Modine Heaters gas, valve, PD, PAE, PA, PV, PDP, modine, part, heater, gas, model, replacement, honeywell, pilot, standing
                                                                                              Price: $119.00
                                                                                              Availability: In stock

                                                                                                These gas valves are used in Modine PD, PAE, and PA 24 volt heaters with standing pilot igniters. Each valve comes setup for natural gas and includes kit to convert to propane.The Honeywell 1/2" x 1/2" standing pilot gas valve is for Modine heaters up to 200,000 BTU input. It replaces Modine part #s 5H71923 & 5H71924.The Honeywell 1/2" x 3/4" standing pilot gas valve is for Modine heaters 250,000 to 400,000 BTU input in propane & 250,000 input in natural gas. It replaces Modine part #s...

                                                                                                Concentric Vent Combustion / Inlet Air Pipe inlet, combustion, air. vent, flue, duct, pipe, furnace, exhaust, gas, sterling, heater, category
                                                                                                Price: $7.95
                                                                                                Availability: In stock

                                                                                                  This galvanized steel vent pipe is used for the combustion (inlet) air side of the Sterling GG heaters when using the concentric vent kit. 4" and 5" pipe connect the air inlet on the heater to the interior inlet on the concentric vent box. 7" and 9" pipe connect to the exterior inlet opening on the concentric vent box and run through the exterior wall to the outside of the structure being heated. Sterling GG30, GG45, GG60, and GG75 use 4" and 7" piping. Sterling GG90, GG105, and GG120 use 5"...