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    440CDi combi control

    Thanks Picasso its straight forward looking at the drg. The power supply to the controls are through LS with LR the switched live thus no other supply is needed apart from the supply to the boiler if i read your drg. correct. Do you have any experience of the Honeywell wireless stats /...
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    440CDi combi control

    We are upgrading a heating system from a single circuit to a "two zoned" circuit and instead of chasing out plaster to hardwire thermostats I was thinking of using the Honeywell CM927 wireless programmable thermostats controlling each of the circuit zone valves A "gas safe" plumber is...
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    Modulating boiler problem

    I agree with you that when the repair cost starts to escalate then it's time to replace . I did look into a Bosch alternative which, if I have bought it would have required an external three way diverter valve installing to give me what I required, according to Bosch technical. My boiler has...
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    Modulating boiler problem

    Thanks for the response, This boiler "Micromat" is a German made boiler also sold under the name Strata, but is now superseded by the ProCon 77 according to the MHG web site. With regards to modulation the fan, burner and water pump modulate I am a Mechanical Engineer by profession and I am...
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    Modulating boiler problem

    Hello forum, could you please advise on the following, I have a Micromat HS 31kw condensing boiler((bought from eco hometec Doncaster, (who have gone into demise)about 10 years ago when I installed underfloor heating in my house)) and it is cycling between hot / cold every approx 2/3...
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    wet room and boiler query

    I have a problem that I hope can be resolved without too much expense. I have a Bosch 28I junior that is running the DHW and heating in a holiday cottage (kitchen sink, and two shower rooms) The problem is that when the shower is in use the hot water periodically coolsat the shower head (as...
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    loft fan

    I have a silavent TVT 240 SST triple vent fan unit sited in the loft and ventilating three rooms and I have a problem, The fan circuit board faulted some time ago so I had it repaired (faulty triarcs) but I have lost the information I wrote down regards the wiring connections I have asked...
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