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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Atmos
Boulter
Efficiency Winner
Atmos Atmos Compact System Boiler N30B
Best Value
Both boilers are available free through the ECO4 scheme
Both Atmos Atmos Compact System Boiler N30B and Boulter Bonus 40/65 are available free through the ECO4 scheme. Check your eligibility and apply today.
