…asked to look into a failing furnace. It is one of five furnaces in a large multi-zone…
…central return with another furnace adjacent to it. Rather than being mounted in the furnaces, the furnace filters are stacked, two…

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An oil furnace is similar to other types of furnaces. The main difference is that…
…click to enlarge) An oil furnace uses a low-grade petroleum derivative…
…replace a filter and inspect your furnace. Clean or replace a filter…

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…an outside source is piped to the furnace where it is burned to produce heat…
…various rooms of the house. Older gas furnaces use a standing-pilot ignition…
…keep the burner running. Once the furnace has heated up, remove the burner…

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…for homes that have boiler or furnace heating systems. Natural…
…efficiency gas boilers and furnaces have the highest fuel conversion…
…efficiency of the home's furnace or boiler a more efficient…
…upgrading an old boiler or furnace to a new, more efficient model…

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…recommended a two-stage furnace (preferably with variable…
…recommended a single-stage furnace, stating that his experience is a two-stage furnace in a two-story house with…
…of two vs. single stage furnaces? Is a two stage always…

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…stay there. If a high-eff furnace is, say 95% efficient, and…
…additional cost of the high-eff furnace. If your heating bill is…
…will incur with high-eff furnaces (higher servicing costs and…
…while to chose the high-eff furnace. Good luck, Mark

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…quote on the two-stage, variable speed furnace is Trane. I'm not an HVAC expert…
…personally know of any people with Trane furnaces at home). Do you know if they have a…
…quote for a two-stage, variable speed furnace was substantially higher (over $900…

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…cycle on and off with the furnace. Timing of the fan is…
…to the efficiency of the furnace, since it prevents the…
…air into rooms once the furnace has stopped. While dual-stage and variable-speed furnaces are available with blowers…

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…However, electric furnaces can accommodate…
…conditioner can share the furnace's ducts. Electric…
…fans) in electric furnaces move air over a…
…kilowatts. The furnace's heating elements…
…A forced-air furnace's air ducts also…
…leakage. Homes with furnaces and ducts sometimes…

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…more options for protecting a new furnace. Ask your utility about rebates for new energy efficient furnaces. The rebate plus the savings in…
…weight. Installing a draft-down furnace in the attic may be an option if…

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