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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Ariston
Firebird
Efficiency Winner
Firebird Blue Flame Enviromax Popular 26kW
Best Value
Both boilers are available free through the ECO4 scheme
Both Ariston ACO 27 MFFI and Firebird Blue Flame Enviromax Popular 26kW are available free through the ECO4 scheme. Check your eligibility and apply today.
