Lots of hot water, and fast.
Bought this from Home Depot's website (not stocked in any local stores), but had a different contractor install it, since the one HD uses wanted to charge me more for the install (which involved relocating the new unit about 3 feet away from the original) than the unit cost. I saved about $800 by using a different installer and buying most of the parts they needed. It took 2 guys about 5 hours to get the plumbing moved and hooked up, and to get the venting run out the side of the house. Keep in
... read more
mind that this unit needs either a concentric termination kit, which makes a 5-1/2 inch hole in your roof or wall, or two separate 2- or 3-inch vent pipes. I already had one 3-inch vent from the original water heater, so I ended up running another alongside it.
This unit was an upgrade from a standard 40-gallon unit. Once it was fired up, I had hot water within 45 minutes. The exhaust fan is very quiet. Since the combustion air is drawn from outside, and there is no pilot, there is virtually no chance of a CO leak. The heater is very energy efficient; it has an energy efficiency rating equal to that of many tankless units.
I am very happy with this water heater, and look forward to lower gas bills every month.