02/09/2026
๐ค&๐
๐ค: What temperature should my Viessmann boiler be?
๐: Your Viessmann boiler should be set to 60ยฐC to 65ยฐC (140ยฐF to 149ยฐF) for central heating to balance home warmth with condensing efficiency, and 50ยฐC to 60ยฐC (122ยฐF to 140ยฐF) for domestic hot water
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