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  1. P

    Heatpump Hot on Gas Side But Cold On Wet Side?

    Mitsubishi Ecodan 2011 8.5kw Hy Guys, I have just installed a second hand ecodan, all seemed to be going well until i noticed that the flow temp doesn't increase much, infact 2 degrees in 40 mins, then the pump shut off with a over temperature warning on the gas side. I have it piped up to a...
  2. H

    6 or 14 plate heatexchanger

    hi can anyone tell me i was quoted 100 for a 6 plate water to water heat exchanger but have seen 14 plate exchangers on ebay for 60 to 70. does more plates mean better proformance and are these any good. is this a better way to go than a willis solasyphon as i dont have any experience with...
    • holedoctor
    • Thread
    • boiler costs green heatexchanger install oil plate solar system water winter
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  3. M

    central heating heat exchanger

    does anyone know where i can find information on a central heating heat exchanger its designed so it allow you to mix an open vent system to a sealed system, on one side you have the one system and the one on the other and as one passes through it takes the heat from that and transfares it to...
    • mark_mc
    • Thread
    • boiler boilers central central heating system exchanger heat heat exchanger heatexchanger hot hot water open vented parts pipes pump radiators sealed system tank vent water
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  4. A

    Powerflushing on backboiler to combi conversion

    When converting fom backboiler to combi when would be the best time to powerflush during the conversion and where is the best point for connecting the equipment takeing into account you don't really want to flush the old boiler, cylinder etc. Also can the powerflusher be used to fill the heating...
    • adamekc
    • Thread
    • air backboiler bits bleed boiler central heating system cold combi conversion cylinder flow flush flushing heatexchanger hot oil remove system water
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  5. R

    Water leakage problem

    Hi guys, I'm new here and am hoping someone here can give me a solution to my problem. I have a Ferroli HE31C boiler. Although hot water and CH is still working properly, there is a massive amount of water leakage coming from inside. I have tightened everything up, where I can, and it is still...
    • richard1970
    • Thread
    • boiler condensate ferroli heatexchanger hot hot water inside leakage pipe problem water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  6. F

    Vaillant boiler heat exchanger

    Hi everyone,My boiler has just been diagnosed with a faulty heat exchanger(scaled up).I could easily take this piece of kit off and try and descale it,but I cannot turn the main water supply stopcock off,it has siezed in the open position.I have tried nearly everything short of shearing the...
    • flickster
    • Thread
    • boiler building exchanger gas heat heat exchanger heatexchanger hot hot water inside leak mains oil plumber problem stopcock supply vaillant water winter
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  7. K

    Hot water tank/heatexchanger

    Hi, new to forum and seeking help. Got an indirect system with a hot wtertank or heatexchanger in cupboerd upstairs. Problem is tank has started making a god awful roaring noise as if its goin to take off:eek:. This goes on for a few seconds then noise stops and blows back into expansion tank in...
    • Knevil
    • Thread
    • airlock boiler boiling central heating system cold control cylinder expansion flow gas heater heatexchanger hot hot water immersion heater indirect loft noise problem tank tap test valve water
    • Replies: 2
    • Forum: Plumbing Jobs | The Job-board
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