Location is Important with a Tankless Water Heater

Location is Important with a Tankless Water Heater

Taryn Williford
May 20, 2011

Going tankless? Awesome! Tankless water heating systems can shave 10 to 20 percent off your water-heating bill compared to traditional hot-water tanks. But while you're using less propane, you might be wasting more water. Surprisingly, the location of your tankless heater in your home plays the biggest role in how much water you use.

Traditional water heaters keep a several-dozen-gallon supply of always-hot water in their tank, ready for you to use any time. Even when you're at work. Or on vacation. Needless to say a lot of wasted heat energy goes into operation here.

Tankless systems, in contrast, heat water on demand. Good for your heating bill, bad for the water bill. Since there isn't warm water waiting for you, there's a lag time between the moment you turn the shower on and when you start to feel warm water. That whole time, you're letting perfectly good (but very cold) water wash down the drain.

Location, Location, Location
Is there any way to make your tankless water heater more efficient with its liquid resources? According to one expert quoted in an article, Tankless Water Heaters Explained, on New York Times' website, yes there is:

"'Distance plays a very large role in how fast hot water gets to the outlet,' says Joe Wiehagen, a senior research engineer at the National Association of Home Builders' Research Center. The farther away your system is from your faucet (in my case on the other side of the house and on another floor) the more piping filled with cold water needs to empty before new, heated water can make its way to you."

So if you want to make sure your new tankless water heater is as thrifty with water as it is with heat power, make sure you have it installed nearest to where you'll be using it most.

Good thing those tankless units are tiny, right?

via NYTimes.com

(Images: Flickr member JohnE777 licensed for use under Creative Commons, Flickr member tom.arthur licensed for use under Creative Commons)

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