I can't say enough good things about this little heater! It cranks the heat in my work shop. I dare you to find a better priced heater that pulls in outside air for combustion. I needed this becuase do woodworking and painting. Installation was simple and it has been running like a charm all last winter and this one.

So i read a ton or reviews and was very skeptical about buying this heater for my 20x24 insulated garage and first time starting it works exactly as supposed to, fan wasn't nearly as loud as people have stated, definitely quieter than the torpedo heaters. It came dented but it's not really noticeable unless you are staring at it for a long time.



If you are trying to get it done with a reasonable price i would buy this one again.

I bought this unit because of the sealed combustion chamber. I did the install in my 16x12 wood shop. The only issue I encountered was a loose wire. But I found the the connector on the board. Looks like the connector was too small for the wire. Not a big deal, simply fixed it and moved on. Not cold enough to run yet. But it does produce heat!

 

Arrived pretty banged up and dented. I know it came in a factory box so it isn't acf greenhouses fault, but these heaters should be packaged better. Other than that after straightening out the metal the best i could the heater works great

This heater has been working great. I am heating a 400 square ft area in my work shop. It’s a nice compact heater. It is fairly quiet. I have it setup so the fan only runs when the unit is calling for heat. I also have the GG -4 “ wall thimble adjustable vent kit that’s all stainless going through my wall horizontally. Works great. We had to buy and use some regular 45 degree pipe duct to hook up for outside air which hooked on to there 4 inch stainless pipe. I added a plastic dryer vent on to the pipe which only opens when calling for outside air, it stays closed when not being used. Great unit for the money and ACF Green Houses great to work with.