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Another example of a non-flued gas heater, running on natural gas. Non-flued heaters – also known as unvented heaters, vent-free heaters, or flueless fires, may be either permanently installed or portable, and sometimes incorporate a catalytic converter. [1] Non-flued heaters can be risky if appropriate safety procedures are not followed.
There are a few reasons why space heaters can be fire hazards, Lambert says: The devices themselves can overheat and catch fire, and they can also cause materials around them to ignite.
[3] [4] The heat from a pilot light in many appliances (furnaces, space heaters, water heaters) is generally released in the same chamber as the primary burner. The energy loss is much smaller for pilot lights in space heaters than other products, because space heaters heat a smaller enclosed space and contribute more significantly to heating ...
This is achieved by leaving the ignition switch in the "on" position, and only moving it to "start" once the glowplug has finished pre-heating the engine. Once the engine is running, some cars continue to use the glowplugs until the engine has reached its operating temperature, in order to reduce the diesel exhaust emissions.
A central heating system has a furnace that converts fuel or electricity to heat through processes. The heat is circulated through the building either by fans forcing heated air through ducts, circulation of low-pressure steam to radiators in each heated room, or pumps that circulate hot water through room radiators.
A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as compared to a mid-efficiency forced-air or forced-draft furnace, is the capture of latent heat from the exhaust gases in the secondary heat exchanger.
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