Estimate heat pump payback after rebates, install cost, monthly savings, and annual service costs before booking installation.
Formula
const net_cost=Math.max(0,inputs.installed_cost-inputs.rebate); const annual_savings=inputs.monthly_savings*12-inputs.annual_service; const payback_years=annual_savings>0?net_cost/annual_savings:0; const five_year_value=annual_savings*5-net_cost; return { net_cost: Math.round(net_cost), payback_years: Math.round(payback_years*10)/10, five_year_value: Math.round(five_year_value) };Installed Cost
8,500
Rebate / Incentive
2,200
Expected Monthly Savings
115
Annual Service Cost
180
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This heat pump rebate payback calculator estimates net cost after rebate, payback period, and 5-year net value from installed cost, rebate, expected monthly savings, and annual service cost. Use it to compare heat pump quotes before booking an installer.
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The estimate combines Installed Cost, Rebate / Incentive, Expected Monthly Savings and returns Net Cost After Rebate, Payback Period, 5-Year Net Value.
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