how does a condensing gas furnace work
The heating cycle begins with the thermostat which detects when temperatures drop. Like conventional systems a condensing gas furnace takes in air through a cold air return system passes it through an air filter moves it with a circulating fan and heats it with.
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A condensing gas furnace combats the issue of wasted energy through the use of a second heat exchanger.
. The water is heated in the heat exchanger until it reaches the correct temperature. How does a furnace heat my home. Since the drain taps into the exhaust system leaving it open.
Conventional gas furnaces burn gas via one heat exchanger so that the excess heat can escape either through walls or a chimney in vapor form. While the condensing furnace is different in its design and repair needs it does have some similarities to a conventional furnace. A condensing furnace puts an end to that by extracting as much useful heat from combustion gases as possible offering impressive energy efficiency in the process.
At the beginning of the heating process a condensing furnace works similar to a traditional furnace. At the beginning of the heating process a condensing furnace works similar to a traditional furnace. A pipe connects the furnace to a natural gas pipe network and the burner lights the gas after it enters.
It captures more heat by condensing the flue gas from 350 to 120 degrees and condensing the steam into water. This means it takes considerably less fuel and therefore less money and energy to keep your home warm. Gas burners deliver heat into the first heat exchanger and the combustion.
The function of a condensing furnace is similar to a regular fuel-based forced-air furnace. Todays condensing furnaces use a secondary heat exchanger. Well in a condensing gas furnace there is more than one heat exchanger.
Difference between non-condensing and condensing furnaces. A condensing furnace has a second heat exchanger that takes this water vapor and exhaust gas and squeezes more heat out of those fumes. A condensing boiler takes water from the pressure supply mains.
This allows them to make more. Like a conventional furnace it takes in cold air from the. Gas burners deliver heat into the first heat exchanger and the combustion.
Condensing furnaces have a second heat exchanger that is able to extract. The result is a much more. Your HVAC unit sucks all the cold air from your house into the furnace where the.
The condensate trap is absolutely mandatory for a high-efficiency gas furnace. Then you pump it to the hot water tank. A pipe connects the furnace to a natural gas pipe network and the burner lights the gas after it enters.
This episode also covers AFUE furnace effic. In this episode of Repair and Replace Vance explains how a gas furnace works. The secondary heat exchanger removes more heat from the combustion gases which then.
Condensing furnaces have a second heat exchanger that is able to extract extra heat from that water vapor that would normally be vented out of your home. All condensate drains go into a trap. The second one works to take that water vapor and exhaust gas and.
All condensing furnaces have an AFUE of at least 90 percent.
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