MassSave Rebate Estimator — Projected Incentives for HVAC Upgrades
Estimate your projected MassSave rebates for qualifying HVAC equipment upgrades in Massachusetts. Rebate amounts are based on equipment type, efficiency ratings, and home characteristics per the 2024–2025 MassSave residential incentive schedule.
Formula
Step 1 — Base Rebate by Equipment Type:
- Ducted ASHP:
$250 × max(tons, 2) - Ductless ASHP:
$250 + $150 × (zones − 1) - GSHP:
$600 × tons - Central AC:
$150 × tons - Gas Boiler:
$1,500 + $0.10 × sqft - Gas Furnace:
$200 + $0.05 × sqft - Oil Boiler:
$600 + $0.15 × sqft - Oil Furnace:
$400 + $0.10 × sqft - HPWH:
$750 (flat)
Step 2 — Efficiency Tier Bonus:
Bonus = Base × efficiency_bonus_rate
Rates: +5% per SEER2 point above 18; +5% per 0.5 HSPF2 above minimum; +10% per COP point above 3.1; +1% per AFUE point above minimum. Capped at 30%.
Step 3 — Electrification Bonus (oil→electric):
min($500 × tons, $2,000) for heat pumps; $250 for HPWH.
Step 4 — Income Multiplier:
Subtotal × income_multiplier (1.0× market, 1.25× moderate ≤80% AMI, 1.50× low ≤60% AMI).
Step 5 — Program Cap:
Final Rebate = min(Subtotal × income_multiplier, program_cap)
Federal 25C Tax Credit:
min(estimated_equipment_cost × 30%, category_cap)
Caps: Heat pumps $2,000; Boilers/furnaces/AC/HPWH $600.
Assumptions & References
- Rebate amounts based on the MassSave 2024–2025 Residential Rebate Schedule for Massachusetts electric and gas utilities.
- Results are estimates only. Actual rebates depend on contractor enrollment, equipment certification (AHRI, ENERGY STAR), utility territory, and available program funding. Verify current amounts at masssave.com.