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Furnace Replacement in Shorewood, MN

A furnace replacement in Shorewood costs $4,500–$9,500 installed, with a written flat-rate quote sized by Manual J. Lake houses that have grown additions often need a different size than the old furnace's nameplate.

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Furnace replacements in Shorewood homes

Shorewood houses change shape more than most. An older lake home that added a family room, a lower level or a second story rarely got a resized furnace, so the replacement is the moment for a Manual J on the house as it stands now. The answer is sometimes a bigger furnace, and just as often the same size with duct changes to reach the addition. Homes with two furnaces get each one judged on its own.

Venting on a lake lot needs thought. PVC from a 96–98% furnace shouldn't terminate on the lake-facing wall if wind drifts snow there, under a deck, or where leaves pile against the foundation, and it has to clear windows and doors by the manufacturer's distances. In the 1960s and 70s ramblers back from the water, moving off the chimney leaves the water heater needing a liner or power vent. On the islands, delivery gets planned ahead. Replacing a furnace normally means a city mechanical permit.

Updated November 10, 2026

What affects the price of a new furnace in Shorewood?

By efficiency: 80% AFUE roughly $4,500–$6,000; 96–98% AFUE roughly $6,500–$9,500. See the furnace replacement cost guide.

Are there rebates for a new furnace in Shorewood?

Shorewood is on CenterPoint Energy gas and Xcel Energy electricity. For the many furnace-and-AC pairs from the 1970s and 1980s, CenterPoint's rebates cover a high-efficiency furnace installed by any dealer, and Xcel's cooling rebates cover the new air conditioner or heat pump; ask whether Xcel's rebate needs a registered contractor. CenterPoint also has a rebate for a ducted heat pump paired with a gas furnace. Rebate programs change every year, so check the utility's current terms before you buy.

Our guides: Xcel and CenterPoint rebates, heat pump rebates.

Furnace replacement in Shorewood: questions

Our Shorewood house has two furnaces. Do both have to be replaced together?

No. Each furnace serves its own part of the house and is judged on its age and condition. If one is 25 years old and the other is 10, replace the old one. When both are near the end, doing them together saves a trip and lets us size each against its own zone. If both share a condenser or the same ductwork, that changes the plan, and we look at that on the quote visit.

Where should the PVC vent go on a Shorewood house facing the lake?

Usually not on the lake side. Lake wind drifts snow against those walls and can frost a termination shut, and a walkout patio or deck on that side often puts the pipes under a structure, which most manufacturers prohibit. A side wall out of the prevailing wind, clear of windows, doors and the gas meter by the manufacturer's distances, and above the snow line is the usual choice. We walk the outside before quoting.

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