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    Honeywell ST699 randomly turning off

    ST699 has a nicad cell in it. It is often dead so interruption of mains power will result in display going to 00:00 Other times, power supply that runs the electronics will have failed that overloads when relays (there are two inside one each for CH and HW) within operate. Overload means it...
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    Magnaclean

    28mm version is available. No harm in having the filter. How did you check the system water to be clean. Fact that radiators are metal ( yours may be alloy) and initial fill will have water ( air being common, 20% of which is oxygen) , bound to get blackening of water ( magnetite).
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    Noisy Ideal Logic Heat 15 Boiler

    Good that the boiler is fine again. mind you, would have been cheaper to get it serviced at the same time
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    Mac and network HP laser printer.

    I have even purchased a new Mac but still the Mac regularly shows printer busy and no print message appears on printer dialogue box Should I replace the HP with something else or plug the printer directly into the back of the computer. We have other devices so network printer is preferable...
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    Noisy Ideal Logic Heat 15 Boiler

    Why not get the boiler serviced. Ideal ask that the burner be removed, HE flushed and electrodes clearances checked. There are other checks and adjustments that also need checking so a person familiar with this boiler will resolve your problem and carry out full service as makers ask too Do...
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    Boiler isolation valves

    Suggest you look at the manual for the cylinder.
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    Boiler isolation valves

    To understand the problem, one needs to know what is in place else rest is speculation. Fixitflav, TWO pumps here as I tried to explain in previous post, both operational only present situation is one is out of action as boiler is not powered . OP perhaps is assuming power OFF at the boiler...
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    'Upgrading' back boiler to C Plan

    Fitting a motorised valve where you indicate will be accurate as per C plan but this valve will need to be 28mm or 22mm with head replaced (6 wires- end of travel switch needs to have orange, grey and white wires). A relay would suffice too if standard 22mm MV used. Just fitting cylinder stat...
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    Boiler isolation valves

    I do not know if the pump is running. I suspect it could be. Why else would circulation take place. At that across a horizontal pipe run. Gravity feed pipe required cylinders that had low number of coil turns in the cylinder ( pumped indirect coils did not support gravity circulation ( been...
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    Boiler isolation valves

    Read what I wrote again please. Boiler does not need to run to make those pipes Hot. Pump need not be inside the boiler if boiler Is a heat only boiler Have known controls to be supplied off ring mains and boiler on own supply for this scenario to take place. Have resolved...
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    Boiler isolation valves

    Need more information to make educated suggestion rather then take shot in the dark 1. Circulation taking place between cylinder and boiler while boiler power is off Question here is, with MCB in off position, the hoiler is depowered, but are the controls also depowered 2. Have...
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    where can I get a Condensation Trap for a Baxi Combi 105E

    Who said anything about roof space. Baxi engineer would know about concentric flue and how to instal it
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    where can I get a Condensation Trap for a Baxi Combi 105E

    Qualified Baxi Engineer? Did not know there was such a class of heating engineer Do you mean he works for Baxi Change to concentric flue is an option
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    Baxi 105e burner problem.

    OP is only looking at posts that agree with his thinking. Lack of circulation can of course be the pump but then flow manifold would not let the burner come on- this component is fairly well balanced that would show up poor pump operation or air in the system Could be plumbing beyond the...
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    Baxi 105e burner problem.

    Regardless of return temperature, if the flow temperature Rise is rapid, the OH stat will disconnect the gas valve supply, ie modulation will not take place. Look up scenario where P2P is blocked up and hot water delivered is erratic. Burner is shutting down in this case, anticycling delay is...
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    Baxi 105e burner problem.

    What is a rigid filling loop. Where in the filling loop does one find a filter? Filling loop is fitted between cold water pipe and normally the return pipe On the 105 it can be located, as an option, on the return and cold-in valve by using a dedicated Baxi kit which had a flexible link that is...
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    Baxi 105e burner problem.

    A fault that is easily fixed. Take temperature reading etc around the boiler. Not Rocket science. It is evident the temperature rise is rapid during heating but fine for HW. Did point out earlier re expansion vessel and op having ideas about water and air ratio- ends up changing the vessel...
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    Nuclear Secret Documents

    https://www.dailymail.co.uk/news/article-11187407/Highly-classified-documents-held-Mar-Lago-contained-foreign-nuclear-secrets.html Hope the orange blob did not have nuclear secret documents about BG capability at his not so beautiful home in Florida, or showed these to bad people
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    Stainless pipes potential for leaks going from gravity to combi

    Good chance the HW primary is gravity fed system boiler will need fully pumped primaries to cylinder and radiators. While it is a possibility, but often the cylinder is not insulated and indirect coil resistance would be low to aid circulation. Connect it to fully pumped system, boiler will...
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    underfloor heating vs radiator running costs

    UF heating will make a condensing boiler run at higher efficiency. Stabdard efficiency will also use less gas as operating temperature is lower. If manifold is fitted with thermal actuators and rooms have individual thermostats, will leave radiator installation far behind.
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