3,500 Sq Ft Heating & Cooling Cost in Colorado (2026)

Recommended HVAC Capacity: 5.0 Tons (60,000 BTU)  |  Utility Rate: 17.1¢/kWh (Xcel Energy Colorado)

2026 Monthly & Annual Utility Breakdown (3,500 Sq Ft in Colorado)

Recommended Equipment Size:5.0 Tons (60,000 BTU)
Colorado Residential Electricity / Gas Rate:17.1¢/kWh  |  $1.25/therm
Cold-Climate Heat Pump (15-Yr Lifespan):$1,544/yr ($129/mo)
Winter Heating vs. Summer Cooling Split (Heat Pump):$1,450/yr Heat  |  $95/yr AC
Natural Gas Furnace + Central AC (18-Yr Lifespan):$1,332/yr ($111/mo)
Electric Baseboard + Window AC (25-Yr Lifespan):$4,665/yr ($389/mo)
15-Year Heat Pump Lifespan Net Savings vs. Baseboard:+$43,215
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DIY Pre-Charged Ductless Mini-Split Kits

Avoid $3,500+ in ductwork labor. Calculate exact multi-zone mini-split BTU capacity for your 3,500 sq ft Colorado home.

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☀️ Offset 17.1¢/kWh

Colorado Solar + Heat Pump Net-Zero Calculator

See how an 80%–100% rooftop solar net-metering array eliminates annual electric heating and cooling bills in Colorado.

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Compare Other Home Sizes in Colorado