It is estimated that a typical family can save in excess of $100 per year with the installation of an ENERGY STAR® qualified tankless water heater installed at each hot water location. In our opinion, the advantages of installing Tankless Water Heaters far outweigh the disadvantages.
For example…
√ The initial cost of installing a Tankless Water Heater is greater than that of a conventional storage tank. HOWEVER, the tankless water heater will typically last longer and have lower operating and energy cost which would offset it higher purchase price. The typical life expectancy of a tankless water heater is 20 years compared to the conventional storage which last only 10 -15 years.
√ The typical hot water heater, gas or electric, is usually centrally located in the home to supply equal amounts of pressure to all areas of the house. The storage tank is keeping the water hot 24/7 which is not energy efficient. The tankless water heater reduces the need to constantly keep water hot and ready for use. Just like the conventional water heater, the tankless water heater comes ready to be installed in either gas or electric.
√ The advantage of a gas fired tankless hot water system is higher flow rates, however keep in mind that the pilot light is constantly on and could cost more to operate. That being said, each individual tankless hot water system can be turned off when not in use eliminating the ongoing cost of keeping a pilot light lit. The cost of operating a gas-fired tankless hot water system varies depending on the model. While more expensive, we suggest you purchase a model with and Intermittent Ignition Device (IID) instead of a standing pilot light. Thie IID resembles the spark ignition found on some gas kitchen ranges and ovens.
For more information on energy saving tips following the links below…
http://saveenergy.about.com/od/productreviews/p/Tankless_Water.htm
http://www.navienamerica.com/CostSavings/
http://www.navienamerica.com/Features_Benefits/Condensing_Technology/