Reznor Udap-400 Power Vented Gas Fired Unit Heater - Ng - 316 Stainless Steel Heat Exchanger - 400,000 Btu Review Aug 12, 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.

Good Unit Dec 26, 2016

Replaced out a Rheem 90% with this unit. Easy installation. Very quite running. Seems to run less than the old unit. Highly recommend.

Modine Noisy Mar 10, 2016

After waiting 26 days to get my Effinity 93 110000 btu unit, I installed it only to find out the propeller fan was very noisy. It is louder than my air compressor. Modine will not honor the warranty unless you use a professional installer. If you are a do it yourselfer, don't buy this unit. The propeller motor is cheap and creates a lot of vibration noise. Even if the motor was replaced under warranty, it would still be the same noisy motor. If you want to be able to talk in the vicinity... more

Nice Panel Radiator Sep 12, 2016

I just wish it was more simple to figure out which connectors were needed. The description should be simpler. All I wanted was 1/2" copper connections but somehow the unit showed up with PEX connections. Overall good radiator though.

Reznor Udap Series Mar 23, 2016

We purchased 75,000, 120,000, 150,000, and 200,000 BTU units, 28 units in total. The 83% efficient rating helped us offset the cost of the upgrade by being eligible for a rebate from our utility. All heaters were installed and work beautifully. The heaters look great! They are installed in a warehouse with great WIFI access so we controlled all 28 individual heat zones using 28 WIFI thermostats from Honeywell. Couldn't be a happier customer! Now management has control of all 28 heaters with... more