Great For Woodshops Sep 03, 2016

I have a 14 X 40 wood shop and was looking for something to heat/cool it that wouldn't cost a lot of money and also not run my electric bill through the roof. I think this unit is the answer. It was simple to install with no labor costs and it runs quiet and efficient. It keeps the shop comfortable with low humidity great for cast iron tables. We placed it about 5" off the floor on the lower end of the building away from busy working spots and also dust. The building has R23 insulation... more

Reznor Udap-400 Power Vented Gas Fired Unit Heater, Ng, Aluminized Heat Exchanger - 400,000 Btu Review Aug 04, 2016

I have owned this same 400k btu unit for 8 years and it is the best purchase that I have ever made. It is used in a commercial setting and has never had a problem or service call. Reznor quality is second to none and definitely worth the extra cost.

Owner Sep 07, 2016

Haven't hooked up yet...but came with adjustment knob broke...and I got to pay shipping....hope they work !

Installed Gree Unit Jan.29 2016 Jul 15, 2016

Ran unit Feb. 1 2016 heating very good super quiet, very please with it. Now waiting to run in cooling mode to see how it controls hot weather. I'll give it a 10 rating for now.

Great Furnace So Far! Meets Expectations. Aug 18, 2016

We did a lot of research before we purchased this unit. The furnace works great.