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en.wikipedia.org/wiki/Tankless_water_heating

Tankless water heaters can be further divided into two ... Full on/full off units do not have a variable power output level; ...

home.howstuffworks.com/tankless-water-heater.htm

Tankless water heaters heat the water as you need it instead of storing it inside a tank. Learn about tankless water heaters and tankless water heater systems.

energy.gov/energysaver/tankless-or-demand-type-water-heaters

A tankless water heater might be the right choice for your small household. ... Here you'll find basic information about how they work, whether a tankless water heater might be right for your home, ... Do the following when selecting a contractor:.

www.waterheaterrescue.com/Longevity/tankless-water-heaters.html

Tankless water heaters: pros and cons. ... heater) it's going to cost the same to heat a given amount of water, no matter whether you do it with a tankless device or in a water heater. .... We work to keep things simple and understandable. We try ...

www.energystar.gov/products/water_heaters/water_heater_whole_home_gas_tankless/how_it_works

Whole-home gas tankless water heaters apply the same principle to heat water as standard gas water heaters, but without a storage tank. They save energy by ...

www.chronomite.com/how-do-tankless-water-heaters-work

How Do Our Tankless Water Heaters Work? Patented Microprocessor Technology. Chronomite tankless water heaters are a low-cost opportunity for energy ...

www.ask.com/youtube?q=How+Does+a+Tankless+Water+Heater+Work%3F&v=-I6sSBKQAos
Dec 8, 2011 ... Video demonstration on how tankless on-demand water heaters work.

www.angieslist.com/articles/what-are-pros-and-cons-tankless-water-heaters.htm

May 28, 2009 ... Tankless water heaters can save money in the long run with their energy ... Most gas-powered tankless water heaters do qualify for a $300 ...

www.angieslist.com/articles/4-common-myths-about-tankless-water-heaters.htm

Sep 18, 2014 ... Tankless water heaters are all the rage, but before you replace your current ... If water does take a long time to get to a faucet, the real solution is to add a ... company that has a good reputation and stands behind their work.