Heat Pump Panel Check — Illinois

In Illinois, a whole-home air-source heat pump typically costs $5,000–$14,000 installed, depending on home size, system type, and contractor. Cold-climate models for zones like Zone 5A cost more but deliver lower operating costs. Combined rebates of up to $8,600 (HEEHRA + state programs) can offset a significant portion of installed cost.

Yes — Illinois has launched its HEEHRA program. Income-qualified households (under 80% AMI) can receive up to $8,000 for a qualifying heat pump. Moderate-income households (80–150% AMI) may receive up to $4,000. HEEHRA program is active and accepting applications as of March 2026. Illinois homeowners with income ≤ 150% AMI are eligible for rebates up to $8,000 for heat pumps. Administered through the Illinois Department of Commerce and Economic Opportunity. Contact them directly for current availability.

Illinois falls in IECC 2021 Zone 5A — Cool-Humid. Typical winter design temperatures are 0°F to 15°F. Cold-climate ASHP required (Mitsubishi Hyper-Heat, Bosch IDS, Daikin Fit, etc.). Size for outdoor design temperature, not average. Sizing requires a Manual J load calculation — but as a rough rule, allow 20–30 BTU/h per square foot for older homes in Illinois.

Not necessarily. Most 200A panels in Illinois have headroom for a heat pump under the NEC 220.82 Optional Method — which accounts for diversity of loads rather than peak simultaneous demand. A 100A panel is more likely to require an upgrade, especially if you also have an EV charger or electric range. Our free audit calculates your exact available capacity in 3 minutes using the same method your electrician would use.