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    HW or CH but not both?

    Seem to have a problem - javascript:emoticon(':(') If I switch on in this order: CH then HW ON boiler fires, turn CH off - valve moves and HW fires the boiler If I have HW then CH on boiler fires, then turn HW off - boiler turns off Now turn CH off and back on, the boiler fires up...
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    Radiators get hot when only water is on

    Hope you can help, in the summer my CH is off, but the radiators get hot(warm) when the water comes on. The 3 way port is working fine - the feed to the CH is cold when the HW is hot. The return feed from the HW joins the return from the CH and it is here that the hot water seems to be finding...
  3. I

    Commissioning New system

    I have just installed a new system, what is the best method of flushing out the swarf\flux etc? Do I remove the 3 way valve and replace with a piece of pipe? Do I need the pump in, or would I take it out and use gravity to drain through the system? Powerflush - is this really necessary or...
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    Combi Versus Conventional

    I have the opportunity to select the type of heating system to install into a 3 bed house. Should I go for a conventional system (space is not an issue) or should I go for a combi boiler? I only have one bathroom and the kitchen so shouldn't be too much draw on hot water. If combi option - any...
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