How Long Does a Furnace Replacement Take?
Most furnace replacements take one day; venting, a chimney liner, gas line or duct work can add a second. Ours run $4,500–$9,500 installed. Call 612-429-3465.
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On the Newport bluffs or in Old Town, a new furnace costs $4,500–$9,500 installed, about $4,500–$6,000 at 80% AFUE and $6,500–$9,500 at 96–98%. Old Town cottages often need less furnace than they have now.
A furnace swap in an Old Town cottage or bungalow usually comes down to venting. The old chimney can take another 80% furnace if it's sound and properly lined, while a 96–98% condensing furnace needs PVC out through a wall and a drain for its condensate, and then the water heater still has to vent somewhere safe on its own. These houses are small enough that a Manual J often comes in under the old furnace's size.
The large homes on the bluffs are a different job. A two-stage or modulating furnace suits long duct runs and big open rooms, and zoning can split a walkout lower level from the floors above. A sloped lot often offers a downhill wall with plenty of height for PVC terminations. Xcel Energy supplies the gas, and some of its furnace rebates require a participating contractor, so ask Xcel before counting on one. Either job, cottage or bluff house, needs a city mechanical permit.
Updated November 10, 2026
What moves the quote in Newport: venting changes on a switch to a condensing furnace, a liner for a water heater left alone in the chimney, and ductwork and returns. See the furnace replacement cost guide.
Newport homes get gas and electricity from Xcel Energy. Xcel's current rebate list includes condensing gas furnaces, gas boilers, central air and heat pumps. Ask us which rebates apply when we quote. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
Usually out the downhill side. A walkout wall tends to give the most height above grade, which keeps the intake and exhaust above drifting snow. The pipes also have to clear windows, doors, the gas meter and inside corners by the distances the manufacturer lists. If the furnace sits far from any usable wall, some models allow longer runs or a roof termination. We lay out the route during the quote so the written price covers it.
Only if the ducts are checked with it. Cottages that grew by additions often have undersized branches and one central return, so we measure static pressure and temperature rise at the quote. A smaller two-stage furnace often heats more evenly than a big one, and a return or a resized branch is listed in the same written quote.
Signs your furnace needs replacing
Most furnace replacements take one day; venting, a chimney liner, gas line or duct work can add a second. Ours run $4,500–$9,500 installed. Call 612-429-3465.
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