Gas Heaters: Vent-free gas heater
The Old House Web
Like all of the Empire vent-free heaters, it runs on natural gas or liquid propane. The slightly larger SR-10 (manual) and SR-10T (thermostat-controlled) heaters can be used in bedrooms, where local codes permit.
This heater can also be installed in a manufactured (mobile) home, where codes permit, although it is not intended as a primary heating source. Ignition is by pilot/piezo, with an automatic shut-off and oxygen depletion sensor on all models. The 18-pound heater had a list price of $257 in December 2004.