The 3 main types of Domestic Hot Water Heaters are Tankless Design, Indirect and Conventional Hot Water Heaters. Tankless Design is an on demand hot water heater that can be wall mounted or low profile. Indirect Hot Water Heaters are used with boilers, taking the water produced by the boiler and circulating it around the storage tank in a sepearate loop heating the stored water. Conventional Hot Water Heaters are used with forced air systems and are standalone systems that function independently of the heating unit.
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