Washington is reconsidering how federal HVAC efficiency standards should work.

The Energy Efficiency Reform Act of 2026 has attracted a mixed response from HVAC contractors, manufacturers and distributors after being introduced in the Senate.

The proposal would change parts of DOE's appliance-efficiency program, which affects equipment ranging from air conditioners and heat pumps to furnaces and water heaters. 

Industry Groups Like Some of It

HVAC organizations have supported parts of the proposal that could increase consideration of real-world costs and product functionality during the rulemaking process.

Contractors have repeatedly argued that laboratory efficiency numbers do not tell the entire story.

Installation cost matters.

Maintenance matters.

Reliability matters.

Consumer affordability matters.

But Stranded Inventory Is Still a Problem

One important issue remains unresolved.

Regional HVAC efficiency standards can be enforced based on installation date, meaning legally manufactured equipment can become impossible to install after a deadline.

HARDI has pushed for compliance to be based on manufacture date instead.

The current broader Senate proposal does not provide that fix. 

Contractors Pay for Regulatory Complexity

New efficiency requirements often mean:

  • New product lines
  • New inventory
  • Technician training
  • Different selling prices
  • Customer confusion
  • Deadlines

Manufacturers may have years to prepare.

The contractor still has to explain the change at the kitchen table.

The Real Problem Is Predictability

HVAC businesses can adapt to rules.

What is harder is adapting to rules that repeatedly change.

Efficiency requirements, refrigerant regulations and federal policy are all moving simultaneously.

The industry is therefore asking for something surprisingly simple:

Enough regulatory stability to know what equipment it will be selling a few years from now.