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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Atmos
Baxi Potterton
Efficiency Winner
Both boilers have similar efficiency
Best Value
Both boilers are available free through the ECO4 scheme
Both Atmos Atmos Compact System Boiler N30B and Baxi Potterton Potterton Promax 15 HE are available free through the ECO4 scheme. Check your eligibility and apply today.
