Furnace Installation & Replacement in Berthoud

Most furnaces in Heron Lakes at TPC Colorado, Fickel Farms, Westside Crossing, Prairie Star and Vantage are less than ten years old. If yours fails early, check the manufacturer's parts warranty before replacing anything. When replacement does come, these homes are simple installs: existing PVC vents, basements or mechanical rooms with room to work, and ducts designed for central air. The decision is usually whether to upgrade a builder single-stage furnace to two-stage or variable-speed for quieter, more even heat in a two-story house, and whether to add a heat pump at the same time.

Colorado now limits new gas furnaces to 14 ng/J of NOx, or the current ENERGY STAR version, for units sold from January 1, 2026. Most Berthoud installs will be 97% condensing furnaces, which meet the rule and suit both older homes leaving a chimney and newer homes already vented in PVC. Our NOx guide covers the choices.

At about 5,033 feet, a gas furnace delivers roughly 80% of its sea-level input after high-altitude setup. We size from a Manual J at the Larimer County design temperature and set orifices and gas pressure for the elevation. Older houses that have had insulation and window upgrades often need a smaller furnace than the one coming out.

Larger homes in the newer neighborhoods raise the opposite question. A two-story house with a finished basement can have very different loads on each floor, and a single furnace sized for the whole house may still leave the upper level warm in summer and cool in winter. Zoning with motorized dampers, or a variable-speed furnace that runs long, low cycles, often fixes that better than more capacity.

The Town of Berthoud Building Department lists furnaces among the projects that require a permit, and contractors must be licensed with the town before applying. The town has adopted the 2024 International codes, including the 2024 International Energy Conservation Code. The permit application and inspection booking are handled by our office.

Xcel Energy is listed as the town's main gas and electric provider, so check your bill and Xcel's current offerings if you are considering a high-efficiency furnace or a heat pump. One difference from the Denver suburbs: the town isn't a DRCOG member, so Power Ahead Colorado's heat pump rebate generally doesn't apply here. Colorado's $1,000 air-source heat pump credit still does. Our dual-fuel guide explains pairing a heat pump with a new furnace.