A Major Shift for the U.S. Heat Pump Market
On May 28, 2026, the U.S. Department of Energy (DOE) finalized new energy efficiency standards for residential heat pumps. The new requirements will take effect in January 2027.
This marks the first major update to federal heat pump efficiency standards in nearly a decade. For manufacturers, distributors, and buyers, the message is clear: lower-efficiency units will no longer be allowed in the U.S. market starting next year.
This article breaks down what the new standards require, when they apply, and what buyers should do now to prepare.
What the New Standards Require
The new standards vary by region, reflecting different climate conditions across the United States.
| Region | Metric | New Minimum Requirement |
| North | HSPF2 | 9.5 |
| Southeast | SEER2 | 15.2 |
| Southwest | SEER2 | 15.2 |
HSPF2 (Heating Seasonal Performance Factor) measures heating efficiency. SEER2 (Seasonal Energy Efficiency Ratio) measures cooling efficiency. Higher numbers mean better efficiency.
For comparison, the previous minimum HSPF2 for northern states was approximately 8.5. The new standard of 9.5 represents a meaningful improvement — roughly a 12% increase in heating efficiency.
What products are covered?
The rule applies to:
Single-package central air conditioners and heat pumps
Split-system central air conditioners and heat pumps
Small-duct, high-velocity systems
What products are exempt?
The rule does not apply to:
Portable or window units
Space-constrained systems
Certain specialty applications
Why This Matters for Buyers
For U.S. buyers:
Starting January 2027, any heat pump installed in a new home or replacement project must meet the new minimum standards. Units that do not meet HSPF2 9.5 or SEER2 15.2 cannot be legally sold or installed after the deadline.
This means:
Plan ahead. If you are specifying products for projects scheduled to complete after early 2027, ensure your chosen models meet the new standards.
Check inventory. Some lower-efficiency models may still be available for projects that will be completed before the deadline — but supply may tighten as the deadline approaches.
Expect higher upfront costs. More efficient units typically cost more. However, higher efficiency also means lower operating costs over the life of the equipment.
For buyers outside the U.S.:
While these standards apply only to the U.S. market, they signal a broader trend. Major markets — the U.S., EU, and Canada — are all moving toward stricter efficiency requirements. Europe's Ecodesign
regulations are also being updated. Canada is aligning with U.S. standards through the Canada-U.S. Regulatory Cooperation Council.
If you are a buyer in Europe, Asia, or other regions, watching U.S. standards gives you a preview of where your own market may be heading.
What This Means for Exporters
For heat pump manufacturers and exporters supplying the U.S. market, the new standards create both challenges and opportunities.
Challenges:
Compliance costs. Updating product lines to meet higher efficiency standards requires engineering, testing, and recertification.
Transition management. Managing inventory of pre-2027 units while ramping up compliant models requires careful planning.
Testing requirements. AHRI certification testing for the new metrics must be completed before products can be sold as compliant.
Opportunities:
Market consolidation. Suppliers that cannot meet the new standards will exit the market, creating space for compliant competitors.
Differentiation. High-efficiency products will become the baseline. Suppliers offering premium efficiency (well above the minimum) can command higher prices.
First-mover advantage. Buyers are already looking for compliant products. Being ready early builds trust and captures orders.
Practical Next Steps
If you are a buyer or specifier:
Review your current specifications. Do your preferred models meet HSPF2 9.5 / SEER2 15.2? If not, start identifying alternatives.
Check project timelines. For projects completing in late 2026, you may still be able to install pre-standard units. For projects completing in 2027 or later, ensure compliant products are specified.
Ask your supplier. Request documentation showing AHRI certification to the new 2027 standards.
If you are a supplier or exporter:
Confirm your compliance status. Have your current models been tested and certified to the new metrics?
Plan your inventory transition. When will you stop taking orders for non-compliant units? When will compliant units be available?
Communicate with buyers. Proactively share your compliance roadmap. Buyers appreciate transparency and advance notice.