242 20 gallon heater products are offered for sale by suppliers on Alibaba.com, of which heating equipment accounts for 19%, storage electric water heaters accounts for 5%, and electric kettles accounts for 1%.
A wide variety of 20 gallon heater options are available to you, such as household, hotel and commercial.You can also choose from electrical, manual and solar 20 gallon heater,As well as from plastic, stainless 20 gallon heater,and whether 20 gallon heater is wall mounted, or freestanding.