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.

Great Panel Radiator Oct 21, 2016

I have installed 2 of those for the living room and they are great! Running a boiler at 140 and inside is 75 - 77F.

Nothing But The Best Oct 15, 2016

I have 2 of the 30,000 btu units and one 75,000 btu unit. I couldn't be happier with their performance and reliability. I went with these over the competition because of the compact design and the quality that they are built with. The Reznor brand may cost more but I have dealt with other heaters that have failed and caused pipes in the garage to freeze. Now I can leave for days at a time without thinking twice about what's going on back at home in sub zero temps.

Warm And Cozy Aug 16, 2016

I bought this unit not knowing if it would heat my 19 x 21 kitchen, but to my surprise I have not had to turn the unit any higher than 4 and that was on a -20 day . So my wife is well pleased with me.

Fabulous Design Feb 16, 2016

Very simple and sleek design. Does a great job of heating my 350 sq ft office.