We have had s many as thirty in stock at a time in our warehouse.
Gas waterheaters (natural gas or propane) They are models of atmospheric ventilation, which means that they use gas-fired ventilation galvanized duct connected to a masonry chimney with pipes.
Power-vent waterheaters Same as atmospheric model, but with a redesigned exhaust system. The outlet is made of PVC instead of metal and has a blower (black motor at the top) to help remove combustion by-products and can be drained through the roof or side walls without a chimney.
Electric waterheaters As the name suggests … an electric cord will be attached to the top of the heater. There will be one or two entrance doors (shown in the photo) in front of the device.