Does Your Panel Have
Capacity for a Heat Pump?
Know before you spend $5,000–$10,000 on a panel upgrade. Our NEC 220.82 Optional Method calculator tells you exactly how much headroom your electrical panel has — in minutes.
Capacity for heat pump + Level 2 EV charger
Marginal — heat pump only, no EV charger
Panel upgrade required before installation
Illustrative examples — not actual audit results
$5K–$10K
Average panel upgrade cost
Often unnecessary — most 200A panels already have headroom for a heat pump.
220.82
NEC Optional Method
The correct calculation for dwelling units with heat pumps. Not the standard method.
<5 min
To complete your audit
No electrician visit required to get a preliminary capacity assessment.
How it works
Three inputs, one clear answer. No electrician visit required for a preliminary assessment.
Enter your panel details
Panel size (amps), heating type, cooling, water heater, EV charger — basic information most homeowners already have.
NEC 220.82 calculation runs
The Optional Method load calculation — the same standard your electrician uses. First 8 kVA at 100%, remainder at 40%.
Get your audit report + PDF
PASS, WARN, or FAIL verdict with exact amperage figures. Downloadable PDF to share with your contractor or HVAC installer.
What you'll need to enter
What you get
A compliance-grade audit report you can hand to your contractor.
PASS / WARN / FAIL verdict
Unambiguous result with exact amperage figures — not a vague "it depends."
Full load breakdown
Line-by-line NEC 220.82 calculation so you can see exactly how the number was reached.
Downloadable PDF report
UUID-stamped audit document to share with your HVAC installer or licensed electrician.
Actionable next steps
If WARN/FAIL: specific recommendations — load shed, dedicated circuit, or panel upgrade.
Disclaimer: This tool provides a preliminary NEC 220.82 load estimate for informational purposes only. It does not replace a licensed electrician's site inspection or an official permit submission. Final decisions must be made by a qualified electrical contractor.
Get notified at launch
The US panel audit tool is in development. Enter your ZIP code so we can confirm your state is supported at launch.
NEC 2023
code standard
$24.99
flat fee at launch
PDF report
included