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New efficiency standards take effect October 6, 2026, but manufacturers will begin transitioning product lines well before that date.
DOE Water Heater Regulations Are Changing Planning Starts Now
What's Changing?
Starting October 6, 2026, new DOE efficiency standards take
effect. Manufacturers including Lochinvar will be phasing out all
water heaters that do not meet the new 95% efficiency standard.
Plan ahead for your project to ensure product availability.
Affected Product Lines
Copper Fin, including atmospheric (CWN)
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Power-Fin (PFN M&F Cat 1 & IV)
Copper Fin II (CFN)
Recommended Next Steps:
1. Review Upcoming Projects
2. Confirm Equipment Early
Coordinate Lead Times
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