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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Atlantic Boilers
Boulter
Efficiency Winner
Atlantic Boilers KDB 181 KCA
Best Value
Both boilers are available free through the ECO4 scheme
Both Atlantic Boilers KDB 181 KCA and Boulter Bonus 40/65 are available free through the ECO4 scheme. Check your eligibility and apply today.
