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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Ariston
Firebird
Efficiency Winner
Ariston ACO 27 RFFI
Best Value
Both boilers are available free through the ECO4 scheme
Both Ariston ACO 27 RFFI and Firebird Boilerhouse S 120-150 are available free through the ECO4 scheme. Check your eligibility and apply today.
