A condensing gas furnace uses from a condensing type heat exchanger to increase the furnace efficiency?

Augusta Mraz asked a question: A condensing gas furnace uses from a condensing type heat exchanger to increase the furnace efficiency?
Asked By: Augusta Mraz
Date created: Thu, Jul 8, 2021 8:47 AM

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Those who are looking for an answer to the question «A condensing gas furnace uses from a condensing type heat exchanger to increase the furnace efficiency?» often ask the following questions:

⛽ Flue gas condensing heat exchanger?

The integrated variant of the flue gas or condensing heating exchanger is installed in the exhaust chamber ex works as part of the boiler, is connected on the water side and is ready for immediate use. Also available as a ready-to-connect stand-alone variant with optional bypass – recommended when using dual firing.

⛽ Gas furnace heat exchanger?

One of the most important parts of your Gas Furnace is the Heat Exchanger, or the part of the furnace that creates the heat.Daikin Comfort offers home gas fu...

⛽ Gas furnace heat exchanger repair?

The furnace heat exchanger carries both heat and air from the furnace. Air is pushed through the exchanger, where it is combined with outside air and pushed back into the furnace where it heats up. If the exchanger becomes clogged, or if certain elements of the heat exchanger require attention, furnace repairs are needed.

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Yes

A condensing gas furnace uses ___ from a condensing type heat exchanger to increase the furnace efficiency. a. sensible heat b. latent heat c. superheat d. subcooling. b. latent heat. Is a conventional gas furnace, the hot flue gases are ___. a. forces out a PVC vent with a blower

A condensing gas furnace uses ____ from a condensing type heat exchanger to increase the furnace efficiency. a. sensible heat b. latent heat c. superheat d. sub-cooling Answer : B. If flue gases are not vented properly, carbon monoxide poisoning could result. Answer : True.

Conventional gas furnaces – burns gas through a single heat exchanger and allows the remaining heat (in vapor form) to escape through a chimney or through the walls. Condensing gas furnaces – has a secondary exchanger to collect the excess heat vapor, allowing for more efficient energy consumption.

The higher-efficiency models are called “condensing gas furnaces.” They run exhaust gases through a second heat exchanger to extract and use available heat that’s otherwise exhausted. These models pull out nearly all of the heat, sending cool exhaust out and leaving behind condensed water.

through the heat exchanger and up a chimney. Higher efficiency furnaces may use a draft fan to move the products of combustion, and the flame may be above or below the heat exchanger. (Drawings H001, H004) When a thermostat senses that heat is needed in the home, it signals the furnace to turn on. The hot products of combustion warm the metal of the heat exchanger. After a minute or so, when the heat exchanger’s metal has warmed up, a limit switch or timer turns on the

furnace are less dense, creating a pressure drop within the heat exchanger. This “gap” is continually being filled by the higher pressure entering air/gas mixture. So, in effect, the gasses entering the furnace are helping to “push” the flue gasses out of the furnace. See Figure 2.

Strip out some of the fancy features and you can still get a 90% AFUE furnace. That’s because to achieve 90% AFUE, a furnace will use two heat exchangers. The primary heat exchanger draws out the first 80% efficiency while a secondary heat exchanger pulls from the remaining usable heating energy from combustion to achieve 90% or better efficiency.

The Dave Lennox Signature SLP98V gas furnace features efficiencies up to 98.7% AFUE. Modulating gas heat and variable speed blower provide precise comfort, quiet operating sounds, and high energy savings. Fully communicating controls offer advanced diagnostics to exchange system information and to ensure optimal performance and efficiency.

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