Anonymous
No problem getting the Viessman installed but try to get someone when you need a repair. NO ONE will call back, NO ONE from VIESSMAN responded to my emails. Furnace works fine when it is 40 degrees out, but once it gets below freezing it is useless. Have the thermostat, which is new, cranked up to 85 and it is just barely registering 60 in the house. I would NOT recommend this product only because you cannot get anyone to work on it once it is installed.
2 years ago
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Viessmann Limited has a 4.3 average rating from 1,036 reviews

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