Reznor Udap-350 Power Vented Gas Fired Unit Heater - Ng - 409 Stainless Steel Heat Exchanger - 350,000 Btu Review Sep 24, 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.

Easy Install Apr 15, 2016

Using in warehouse to prevent pipes from freezing, but since the weather hasn't been very cold it is difficult to evaluate. The install was fairly easy.

Florida Condo Jul 28, 2016

Purchased as a replacement about 4 weeks ago and very happy at this time. Very quiet operation.

Good Unit May 17, 2016

This product performed well...garage install....1200 sq. ft. Heats up immediately.

Combi 151 Jun 06, 2016

My contractor purchased the 151 combi from local warehouse. I just wanted to share experiences for the whole deal of getting this one. I had it installed a few days ago by a local contractor who claimed certified by Bosch. Technicians under supervision by certified plumber were struggling of how they were going to install and had it fired, back and fort with rewiring, and reconnect piping for a few occasions, saying they were difficult to install. Two vents with about 3-4 inches diameters... more