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Heat Pump Cost in Indiana (2026)

Indiana's cheap gas and cheap electricity create a narrow operating cost gap — fuel savings alone won't drive the heat pump decision.

Indiana heats with a diverse fuel mix: 63% of homes use utility gas, 22% electricity, 2% fuel oil, and 9% propane (ACS B25040). That 22% electric share is above the Midwestern average, reflecting a meaningful existing electric heating base. Natural gas at $1.25/therm (EIA March 2026) is among the cheapest in the country, kept low by Midwest supply and well-developed distribution infrastructure. Electricity at $0.18/kWh is also below the national average — Indiana's coal-heavy generation portfolio (still over 50% of the state's electricity) keeps wholesale power costs low, though that's shifting as coal plants retire and renewables expand. The result: both fuel options are affordable, and the operating cost gap between a cold-climate heat pump (HSPF 10+) and a 90% AFUE gas furnace is narrow — roughly $100-$300 per year for a typical 2,000 sqft home, depending on weather and home efficiency. For gas-heated homes, the heat pump decision comes down to non-fuel factors: replacement timing, air conditioning needs, and personal preference. Indiana's three major investor-owned utilities divide the state: Duke Energy Indiana serves Indianapolis, Bloomington, Terre Haute, and the southern two-thirds of the state. Indiana Michigan Power (an AEP subsidiary) serves Fort Wayne, Muncie, and the northeastern counties. NIPSCO (a NiSource company) serves the northwestern region including Gary, Hammond, South Bend, and the Chicago exurban counties. Net metering for solar is sunsetting to avoided-cost rates by 2027 under Senate Enrolled Act 309, but this policy does not directly affect heat pump installations — the two technologies have separate regulatory treatment.

Primary keyword: heat pump cost indiana

Reviewedby RenewableCalc Data Team

Solar ROI Explained

Heating Fuel Mix — Indiana

Primary heating fuel by occupied housing unit. Source: Census ACS B25040 (2019–2023). Climate zone: cold. Residential gas: $1.25/therm (EIA Mar 2026).

Utility Gas
63%
Electricity
22%
Fuel Oil
2%
Propane
9%

Overview

Indiana heats with a diverse fuel mix: 63% of homes use utility gas, 22% electricity, 2% fuel oil, and 9% propane (ACS B25040). That 22% electric share is above the Midwestern average, reflecting a meaningful existing electric heating base. Natural gas at $1.25/therm (EIA March 2026) is among the cheapest in the country, kept low by Midwest supply and well-developed distribution infrastructure. Electricity at $0.18/kWh is also below the national average — Indiana's coal-heavy generation portfolio (still over 50% of the state's electricity) keeps wholesale power costs low, though that's shifting as coal plants retire and renewables expand. The result: both fuel options are affordable, and the operating cost gap between a cold-climate heat pump (HSPF 10+) and a 90% AFUE gas furnace is narrow — roughly $100-$300 per year for a typical 2,000 sqft home, depending on weather and home efficiency. For gas-heated homes, the heat pump decision comes down to non-fuel factors: replacement timing, air conditioning needs, and personal preference. Indiana's three major investor-owned utilities divide the state: Duke Energy Indiana serves Indianapolis, Bloomington, Terre Haute, and the southern two-thirds of the state. Indiana Michigan Power (an AEP subsidiary) serves Fort Wayne, Muncie, and the northeastern counties. NIPSCO (a NiSource company) serves the northwestern region including Gary, Hammond, South Bend, and the Chicago exurban counties. Net metering for solar is sunsetting to avoided-cost rates by 2027 under Senate Enrolled Act 309, but this policy does not directly affect heat pump installations — the two technologies have separate regulatory treatment.

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Calculation Method

Indiana heat pump comparison = gas furnace cost ($1.25/therm at 90% AFUE) vs cold-climate heat pump ($0.18/kWh at HSPF 10). Cheap gas and cheap electricity make the operating cost gap narrow — roughly $100-$300/year — making non-fuel factors (replacement timing, AC needs, carbon preference) the real decision drivers.

Key Assumptions

  • Heating fuel breakdown: 63% utility gas, 22% electricity, 2% fuel oil, 9% propane (ACS B25040 2019–2023).
  • Design temperature -5°F to -10°F statewide; cold-climate heat pump (HSPF 10+) recommended.
  • Indiana has both cheap natural gas ($1.25/therm) and below-average electricity ($0.18/kWh), creating a narrow operating cost gap between the two heating fuels.
  • No statewide heat pump incentive program exists. Net metering is sunsetting in 2027, but that policy is for solar and does not apply to heat pumps.

Data Sources

Heating fuel mix

ACS B25040 (2019-2023)

63% utility gas; 22% electricity includes both resistance and heat pumps.

Electricity and gas rates

EIA March 2026

Residential electricity $0.18/kWh; natural gas $1.25/therm.

Climate zone

ASHRAE / IECC

Indiana is classified as cold (zone 5A).

State incentives

DSIRE and utility programs

No statewide heat pump rebate. Check utility efficiency programs.

Formula Assumptions Data Sources FAQ Related Links

Why neither fuel is expensive enough to force a switch

Indiana's energy economics create an unusual situation: both natural gas and electricity are cheap. Gas at $1.25/therm and electricity at $0.18/kWh produce a narrow operating cost gap. A 2,000 sqft home with a 90% AFUE gas furnace spends roughly $1,250-$1,650 per winter. The same home with a cold-climate heat pump (HSPF 10) spends roughly $1,400-$1,800 — a difference of $150-$300 per year. Multiply by 15 years and you're looking at a $2,250-$4,500 lifetime operating difference, which is roughly the premium a heat pump commands over a gas furnace replacement. This means the total cost of ownership over a system's life is close to a wash. For gas-heated Indiana homes, the decision is not about fuel savings — it's about when equipment needs replacement, whether you need air conditioning anyway, and your personal electrification goals.

Duke Energy Indiana, Indiana Michigan Power, and NIPSCO

Duke Energy Indiana is the state's largest electric utility, serving Indianapolis and the southern two-thirds of the state including Bloomington, Terre Haute, and Evansville — roughly 860,000 customers. Duke Indiana operates its own generation fleet with a mix of coal, gas, and growing solar. Indiana Michigan Power (I&M), an AEP subsidiary, serves Fort Wayne, Muncie, South Bend, and northeastern Indiana — roughly 460,000 customers. I&M has a significant wind portfolio with over 2,000 MW of contracted wind capacity. NIPSCO serves the northwestern corner of the state — the Calumet region including Gary, Hammond, Michigan City, and the Indiana suburbs of Chicago — roughly 470,000 customers. NIPSCO is rapidly transitioning from coal to renewable generation. Each utility has different rate structures; NIPSCO in particular has proposed time-of-use rates that could lower off-peak heat pump operating costs.

The propane opportunity in rural Indiana

About 11% of Indiana homes — mostly in rural counties south of Indianapolis and in the northern agricultural belt — heat with propane or fuel oil. These homes are typically beyond natural gas distribution lines and face propane prices of $2.50-$3.50 per gallon for delivered heat. A heat pump converts that to roughly $1,400-$1,800 in electricity per winter, saving $1,200-$2,500 annually over propane. The payback period is 4-7 years. Some rural electric cooperatives (REMCs) offer energy efficiency programs that may include heat pump incentives — check with your specific co-op. For oil-heated homes (a small but real share at 2%), the savings are even larger because fuel oil prices in the Midwest have been structurally higher than propane on a per-BTU basis.

Net metering sunset and why it doesn't affect heat pump buyers

Indiana's Senate Enrolled Act 309 phases out retail-rate net metering for solar by July 2027, replacing it with avoided-cost compensation. This policy change has generated significant attention in Indiana's energy community, but it is specifically about solar generation compensation — it does not apply to or affect heat pump installations. Heat pumps are regulated as an end-use efficiency measure, not as a generation technology. There is no pending legislation that would change heat pump incentive structures in Indiana. The confusion between solar and heat pump policy is common but important to clarify: if you're installing a heat pump without solar, the net metering debate is irrelevant to your project.

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Frequently Asked Questions

Duke Energy Indiana serves Indianapolis and the southern two-thirds of the state. Indiana Michigan Power (I&M) serves Fort Wayne, Muncie, and northeastern Indiana. NIPSCO serves the northwestern region including Gary, Hammond, and South Bend. Rural electric membership cooperatives (REMCs) cover many rural counties statewide. Each utility has different rate structures — some offer time-of-use or off-peak options that can lower heat pump operating costs.