Great Furnace Nov 29, 2016

It was an easy installation and it went in with no problems. Didn't have to do any adjustments all the factory setting were good and it went right in and hook up was seamless. I would buy another!

Easy To Install Aug 23, 2016

It ran quietly.

Ultra - 155,000 Jun 21, 2016

My suggestion is to have a very experienced high efficiency furnace plumber install the unit. From what I now know all aspects of the system need to be in balance to work properly. My unit is exceptional and my wife likes the colored pictures designating the various modes of operation.

Great Product Feb 24, 2016

I have two of these units. The first one I bought was for my Business to handle Domestic Hot-water (via Heat exchange and snow melt operations) Units has been up and running for 2 years with short run cycles from 7-15 Mins.... (not a good thing) but it has held up like a champ. we use 160f water for our low temp dishwasher. Then a heat another Heat exchanger for the Snow melt system. The second unit is a GV90+6 That one is for my home Heating system, This one has been installed for... more

Emerson 1f80-0471 Blue 4" Thermostat, Single Stage, Programmable Review Dec 13, 2016

I have a hydronic heat system with 3 wire Automag controls and this is the first unit that I found to work with my system. Highly recommend!