Hot Water Heaters

We are using tankless hot water heaters for our house.  We actually have three:  two in the main house and one for the studio.  We aren’t installing hot water in the outdoor bar area (I hear it’s traditional that you don’t have hot water at a bar sink…who knew?!).

Gas tankless hot water heaters are the most efficient to use, heating water only when the appliance senses water flowing through it.  And while the heater gives a huge blast of gas-powered flame to the water as it flows, you’re not paying to keep a 50 gallon tank of water hot 24/7. 

Our house design is very conducive to efficient use of tankless heaters.  The north side of the house accommodates the master bath (downstairs) and the kitchen (upstairs).  The south side of the house accommodates two guest baths and the laundry room.  By installing two heaters – one on the north wall and one on the south wall – we minimize the length of the pipe runs from heater to end-use faucet or appliance.  LEED awards points (in the Energy & Atmosphere category) for keeping the pipe runs under 20 feet for 1 story homes or 20 feet + ceiling height for 2 story homes.  So for our 2 story home, we’re allowed runs of 29 feet.  Our longest run is approximately 20 feet.  The photo above is of the interior/backside view of one of the tankless heaters.  Ours install on the outside of the house…and you’ll note that it backs up into the master wet area that houses our tub and showers.  We’re very close to our hot water source…which will be nice on those rushed or chilly mornings.

We’re reusing one of the hot water heaters from our old house.  We loved it, had absolutely no issues with it and would recommend it to anyone.  It is a Noritz.

December 14th, 2008 9:53 am

I’m very glad to see tankless hot-water heaters finally gaining acceptance in the U.S. In Europe, with its higher energy costs, you’ll rarely see a tank for hot water– and when you do, they’re small and set to operate for limited periods during the day.

December 14th, 2008 10:35 am

We also installed a tankless in the house that we eventually deconstructed to build this house (yes, we’re reusing that tankless in the new house). The water heater that had previously been in this house was from the laste 70’s according to the make and model number. It was time for an upgrade! With the additional benefit of having the tankless hot water heaters hung in the exterior walls and accessible from the outside of the house only, you save even more wall/floor space than even with an interior-hung tankless. Even the small “on-demand” tankless heater for the studio bath is hung high on the wall of the garage below the bath…the pipe span is only something like 6 feet!

Leave Your Comment