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  1. J

    vaillent echtech 837 takes ages to get to 65c

    Iv posted before and managed to get my boiler fixed by an engineer after some good advice. I need some more help. If i set my boilers central heating to come on and set the boiler dial at 65c my boiler takes 38mins to reach 65c from cold. Is this right? It also keeps at 65c for over 40 mins...
  2. J

    vaillent ecotech 837 using lots of gas and doesnt heat house

    i had an eco tech 837 installed last week and i have noticed that it is eating the gas ie 1.3 units black ones per hour that the heating is on. Also the heating never gets the house warm ie does not go above 19c. my old potterson flamingo cylinder boiler rated f or g got the house really hot...
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