Federal HVAC Policy

Plain-English explainers for the federal tax credits, EPA rules, and DOE efficiency standards that shape what HVAC equipment you can buy, what it has to meet, and what financial incentives apply. Updated as policy shifts — and policy is shifting often right now.

AI-assisted educational content. For general orientation only — not professional advice and may contain errors, omissions, or outdated information. Verify any specific claim with the cited source before acting on it. Full disclaimer ↓

U.S. Department of Energy scheduled

DOE 95% AFUE Standard for Residential Gas Furnaces

DOE rule requiring 95% AFUE on new residential gas furnaces manufactured on or after Dec 18, 2028 — upheld in court, not yet in effect.

U.S. Department of Energy active

DOE Regional Efficiency Standards for Central Air Conditioners

Federal AC efficiency minimums vary by region — North 13.4 SEER2, South/Southwest 14.3 SEER2 — and the South enforces by install date.

U.S. Environmental Protection Agency active

ENERGY STAR HVAC Certification Program

EPA's voluntary above-code efficiency label — split heat pumps need 15.2 SEER2 / 7.5 HSPF2; the central-AC label retired Feb 2026.

U.S. Department of Energy active

High-Efficiency Electric Home Rebate Program (HEEHRA / HEAR)

IRA-funded, income-qualified electrification rebate — up to $8,000 toward a heat pump within a $14,000 household cap, run state by state.

U.S. Department of Energy active

Home Efficiency Rebates (HOMES) Program

IRA-funded, savings-based whole-home rebate — up to $4,000 (or $8,000 for low-income), run state by state where launched.

U.S. Congress replaced

Inflation Reduction Act of 2022 — HVAC Provisions

The 2022 law behind the 30% HVAC tax credits and HOMES/HEAR rebates — its tax credits were repealed for 2026; its rebates live on.

U.S. Environmental Protection Agency active

R-454B Refrigerant Transition (EPA AIM Act)

EPA's HFC phasedown caps new AC/heat-pump refrigerant at GWP 700 from Jan 1, 2026 — R-454B replaces R-410A, but the rule is in flux.

Internal Revenue Service expired

Section 25C Energy Efficient Home Improvement Credit

Federal tax credit for high-efficiency home HVAC equipment — 30% of cost up to $2,000 on heat pumps, $600 on AC. Expired Dec 31, 2025.

Internal Revenue Service expired

Section 25D Residential Clean Energy Credit

30% federal credit for solar, geothermal heat pumps, and battery storage — uncapped. Expired Dec 31, 2025 under OBBBA.

U.S. Department of Energy active

DOE SEER2 Minimum Efficiency Standards (2023)

Federal floor for new AC and heat pumps since Jan 1, 2023 — split heat pumps must hit 14.3 SEER2 / 7.5 HSPF2 nationwide.

ⓘ Educational content — not professional advice.

Federal-policy information is provided "as is" for general educational purposes only. Tax credits, EPA rules, DOE standards, and federal program eligibility change frequently — sometimes retroactively. Verify any specific claim with the cited authority (or its successor) before acting on it.

Nothing on this page constitutes tax, legal, accounting, or engineering advice. Before claiming any tax credit, consult a licensed tax professional with knowledge of your situation. Before relying on a regulatory deadline, check the issuing agency's current notice — agency interpretations and enforcement dates can shift.

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