Tankless hot water heaters can supply an endless supply of hot water, and can save energy. Tankless (sometimes referred to as “on demand water heater systems”) are limited in the amount of hot water that can be produced at one time and are more expensive to purchase than a traditional gas water heater storage system. Tankless hot water systems may also make it take longer for you to get your hot water, because the system does not begin heating water until it is demanded.
Tankless hot water heaters save money on your yearly fuel bill because they do not heat water unnecessarily. Water heat can account for up to 20% of a home's heating cost; with rising fuel prices, a tankless hot water heater may help you save on your energy bill. Conventional hot storage tank-type water heaters raise and maintain the water temperature to the temperature setting on the tank (usually between 120° and 140° F (49° to 60° C). Even if no hot water is drawn from the tank (and cold water enters the tank), the heater will operate periodically to maintain the water temperature. So, the heater operates even when there is no demand for water. This process is called standby loss: the heat is conducted and radiated from the walls of the tank — and in gas-fired water heaters — through the flue pipe. Standby loss can represent 10% to 20% of a household’s annual water heating costs.
Select a heater based on the maximum amount of hot water to meet your peak demand. Use the following assumptions on water flow for various appliances to find the size of unit that is right for you: List the number of hot water devices you expect to have open at any one time, and add up their flow rates. This is the desired flow rate for the water heater. Select a manufacturer that makes such a unit. Most tankless hot water heaters are rated for a variety of inlet water temperatures. Choose the model that is closest to your water heater: Bosch is one of the leading producers of tankless water heaters in the world and offers models rated from 2.6 to 6.35 gallons per minute. Tankless water heaters feature a virtual endless supply of hot water and an 87% average efficiency rating along with the capability of venting directly outside the home. This eliminates the need for chimney venting, making tankless hot water heaters a smart choice for the tank-type water heater replacement market. Propane tankless hot water heater: Due to the higher cost of propane, a propane tankless hot water heater system may be help you recover your energy cost from conventional gas fired water heater systems. Come into our showroom and have our water heating specialist help you choose the propane water heating system that is best for you. Electric tankless hot water: If gas, propane, or fuel oil is not available to you, the electric tankless hot water heater may be an excellent choice for your office, cabin, or mobile home. We have many models to choose from. Come into our showroom and have our water heating experts help you choose the right tankless water heating system.
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