Heat Pump vs Gas Furnace: 10-Year Cost Comparison by State

The Real Cost of Gas vs. Heat Pumps Over 10 Years

When evaluating home heating systems, the upfront purchase price is only one piece of the puzzle. The true comparison requires looking at operating costs over the life of the equipment—typically 15–20 years. This analysis uses a 10-year window to give a conservative, near-term view of costs.

Methodology

These calculations assume a 2,000 square foot home with an annual heat load of approximately 60 million BTU— typical for a moderately insulated home in a climate with 5,000–6,000 heating degree days. The gas furnace is modeled at 95% AFUE (the highest efficiency available), while the heat pump operates at an average COP of 3.5, representative of a modern cold-climate heat pump across the full heating season.

Energy prices are sourced from the U.S. Energy Information Administration's most recent state-level residential price data. Because energy prices vary significantly by state—natural gas is cheap in Texas and Louisiana while expensive in New England, and electricity is cheap in the Pacific Northwest but expensive in California and Hawaii—the comparison looks very different depending on where you live.

Where Heat Pumps Win Big

States where natural gas is expensive relative to electricity—including many in the South and Pacific Northwest— show the largest 10-year savings for heat pumps. These regions typically have mild winters, which also favor heat pumps because they operate most efficiently in moderate cold.

Where Gas Is More Competitive

In states like Louisiana, Texas, and Oklahoma, where natural gas prices are historically low, a high-efficiency gas furnace can be cost-competitive with or even cheaper than a heat pump on pure operating costs alone. However, even in these states, the math is shifting as gas prices have risen and heat pump efficiency has improved.

The Incentive Wildcard

This analysis covers operating costs only and does not include the value of federal tax credits (up to $2,000 per year under 25C), utility rebates, or state incentive programs. When these are factored in, the economic case for heat pumps improves substantially in nearly every state.