Rinnai Rl75 - 5.0 Gpm At 60° F Rise - 0.82 Ef - Gas Tankless Water Heater - Direct Vent Review Dec 12, 2016

I love this system. It's been installed in my house for almost two years now and have no problems at all and all the hot water I need. I would recommend this to anyone replacing a hot water unit. Originally, I had a tankless coil in the furnance and that required the furnace to run all year long. Now, I can shut off the furnace during the summer. Also, this product is energy star compliant which means a payback from uncle sam during tax time.

Daikin Mxs Wall Mounted 2-zone System - 24,000 Btu Outdoor - 15k + 15k Indoor - 18.9 Seer Review Aug 17, 2016

I have one of these and am a bit disappointed when it's efficiency drastically decreases when the outside temperature drops below -10C or + 24F. Still I am very pleased with it. Now the inside unit 'chirps', what is up with that ? Does it need to be oiled ? Doug

Reznor Udap Series Sep 21, 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

Weil Mclain Gas Boiler Cga Series 2 Mar 23, 2016

Just had a Weil-McLain gas boiler put in, I don't see it listed as a great heater.

My 15rls3 Is Awesome! Dec 16, 2016

Installed my unit in April/2015. Live in the pacific northwest. Originally installed it as a make work project as I'm recently retired and didn't expect much. It works so much better than I had ever expected..heating or cooling. So much so, that I'm just in the process of installing another one for the bedrooms area. It costs 67 cents a day to run for either modality! For most of the winter, I will likely not use the gas boiler. These units are durable but delicate to install. I can... more