The term is one I heard to indicate an ability to have a gas heater be able to run without an outside source of electricity. Don't know if the terminology is accurate.
Lopi gas stoves makes a great one: http://www.lopistoves.com/product_guide/gas_stoves.aspx The pilot light is lit by an onboard sparking device and then is kept open by an electric-generating thermocouple. While there is a blower fan to help distribute the heat, it isn't necessary to produce keep the fire on. They are very efficient because they only burn outside air so none of the inside room air is lost through a chimney. The added bonus is that these models actually look like a wood fire burning due to some very creative rockwool placements. Richard P. >>passive gas heaters > > Tell us more. I Googled the term and got just 1 hit (in French). ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
