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Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Efficiency Winner
Ferroli Optimax 25 OV LPG
Best Value
Both boilers are available free through the ECO4 scheme
Both Alde Slimline 2927 and Ferroli Optimax 25 OV LPG are available free through the ECO4 scheme. Check your eligibility and apply today.
