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Popular throughout Asia, tankless water heaters are also becoming more common in Calgary and Canada in general. As the name suggests, tankless hot water heaters do not have a tank so water is heated on demand. This will provide an endless supply of hot water in your home and offers more options in terms of setting hot water temperatures. Eliminating the tank also saves space in your home. Tankless water heaters are attached to a wall on the inside of your home, so they do not have the large floor space requirements of water tanks.
Water is heated only as needed, there can be considerable energy savings particularly when hot water is not used on a daily basis like in vacation properties or guest houses. Energy savings can be 30 to 40% of hot water tanks. Hot water tanks continually keep water hot, which can be wasteful if hot water is not needed often.
Tankless water heaters are typically more expensive than water tanks, so cost will need to be weighed against the benefits of unlimited hot water flow.
It is possible to have one large tankless hot water heater that serves your entire home, or several smaller units can be installed to serve different parts of your home. Be sure to get enough hot water capacity to meet the needs of your home. A small tankless hot water heater can be overrun if your family uses a lot of hot water at one time.