Direct-Vent Gas Heaters

Direct-Vent Gas Heaters

Direct-vent gas heaters are efficient because the fuel is combusted right in the room where heat is needed, instead of remotely like a central heating furnace. Some models have fans/blowers.  Most models may be side wall vented and some have the option of chimney venting. Orifices can be jetted to work with propane (LP) or natural gas.

Gas stove room heater
Gas stove room heater. Image courtesy of Hearthstone Stoves
Wall-vented gas heater
Image courtesy of Rinnai.
wall vented gas stove
Image courtesy of Jotul.