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.

Wonderful! Does It Come In Black? May 31, 2016

So far so good. I love how quiet the units are and they are doing a very nice job controlling the temperature in our space. But my wife would have loved it if the indoor units came in a darker color. Could there be color options? Just a suggestion.

Great Overall Aug 20, 2016

Love this unit! Installed in the fall, it cools well yet can put out satisfyingly uncomfortable amounts of heat when it's 20F outside and throttles down very low to match demand. Thermostat is rather unintuitive to use all its features and you have only one set of temps in auto mode, but if you don't mind switching from heat mode to cool mode yourself you can program it any way you like. The indoor blower isn't obtrusive, but louder than the high fan of many ductless minisplits, even on... more

Good Unit, No Problems Jul 18, 2016

Used this unit with a 12, 18, 9, 9 set up with a 4-way distribution box, it has worked very well with very little noise. There is a very high pitched sound you can hear if you are near it, but it is not very noticeable.

Modine Noisy Sep 24, 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