Reznor Udap-350 Power Vented Gas Fired Unit Heater - Ng - 316 Stainless Steel Heat Exchanger - 350,000 Btu Review Sep 13, 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.

Nice Unit Nov 19, 2016

Easy access points easy to wire and easy sweat line set. Great product.

Money Saver May 02, 2016

Replaced a 22 year old Triangle tube heater with the Smart 40. My furnace hardly ever runs to keep my hot water hot unless I am using it. Really holds the heat. I have had it installed about a month now and I think it was a great purchase. A little expensive, but if it last as long as my last one, I'll be happy.

Great! Aug 21, 2016

Had this boiler for 2 winters now in MA. First winter was hard. This last one less so. Great product. Made is USA. Cast iron. Will last forever my plumber tells me. Still 84% efficient. Doesn't need yearly maintenance like the higher efficient junk out there. That high efficient junk also requires a power vent that is super loud. Consider that too in your purchase. This Burnham is very quiet. No power vent. I use an old school dial thermostat and set it at 67. When I get my heating bill... more

All Ok Nov 01, 2016

The unit is what I ordered, arrived on time slight shipping damage to the metal grill down low on the condenser unit although it didn't hit the coil I will straiten the metal because were I am installing the unit it will not be noticed. Thanks for the great service. Tom