Furnace Installation & Replacement in Fort Lupton

At 4,915 feet, Fort Lupton is one of the lower towns we serve, but furnaces still lose about 20% of their sea-level input after high-altitude conversion. We set orifices and pressure from the manufacturer's tables and size the unit with a Manual J. Open farmland around town means more wind exposure than in a tightly packed suburb, which raises the design load for houses on the edge of town and on acreage.

Colorado now requires new gas furnaces to meet 14 ng/J NOx or the latest ENERGY STAR version, effective January 1, 2026. If your furnace shares a flue with the water heater, an ultra-low NOx 80% furnace keeps that arrangement. A 97% condensing furnace vents through PVC and needs a drain; the water heater left behind may need its vent resized. We put both on paper so you can compare up-front cost and gas savings. In a smaller older house, the condensing furnace's savings are modest, while in a larger 1970s home with long winters of use, they add up faster. Either way, the furnace is converted for altitude and checked for proper gas pressure and temperature rise before we leave. Our NOx guide explains the rule.

The City of Fort Lupton Building Department, at 2500 9th Street, handles permits, with plan review and inspections performed by SAFEbuilt. Contractors apply through the CommunityCore portal. We submit the application, schedule the inspection and make sure the furnace, gas connection and venting are ready for it.

A utility directory lists United Power as Fort Lupton's electric provider and both Atmos Energy and Xcel Energy for natural gas. Check your bill to see which gas company serves your address. Because United Power, not Xcel, supplies most homes' electricity, Xcel's heat pump rebates generally don't apply, but Colorado's $1,000 air-source credit and Power Ahead Colorado's $1,500 cold-climate rebate can.

If your AC is as old as the furnace, compare a heat pump or dual-fuel system before committing. Our heat pump vs. furnace guide lays out the trade-offs.