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    Boiler Frost Protection for C-plan.

    I am planning frost protection using the Honeywell kit on our boiler which is in the garage and is piped as a C-plan. It is recommended to fire the boiler and pump (connect frost/pipe stat to terminal 5) but that will leave the gravity hot water circuit with no circulation (m/v de-energised). Is...
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    Central Heating Room Thermostat Choice

    I am looking to replace a simple honeywell room thermostat. What I hoped for was to be able to set a daytime temperature and a second evening temperature, nothing more. Unfortunately, the thermostats capable of this are the programmable type and much more complicated than I really want. Any...
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    Close-coupled vent and f&e pipe positions ?

    I would much appreciate a little advice. This is a typical fully-pumped system maybe 8 years old which has had a problem with air in the system from new. The flow pipe from the boiler rises in the airing cupboard, first tee is the 22mm feed pipe, second is the 22mm vent, then the pump...
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    Central Heating, feed pipe water volume.

    Does this make sense ? This is a standard open-vent, pumped heating, gravity h/w system with feed and expansion pipes each side of h/w cylinder. The measured water expansion (in header tank) is approx' 4 litres. ie. the level in the header tank rises by 4 litres as the system heats up...
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    Semi-gravity pump position.

    This is a standard semi-gravity system, feed and vent each side of the cylinder coil, boiler at ground level. The pump is in the return, next to the boiler, which I believe is common. Will I have a problem if the pump is moved to the flow side of the boiler ? I want to do this so as to...
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    Water level in header tank question.

    Would appreciate some advice. I am trying to find where air is getting into the central heating system. The system is standard semi-pumped with conventional boiler at ground level, pump in CH return pipe next to boiler, feed and vent pipes are each side of the cylinder coil on first floor...
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    Bathroom zones query.

    I would much appreciate confirmation that the zone 2.25m above the bath to the ceiling is zone 2. I ask because I would have thought that 2.25m would be measured from inside the bath rather than from the floor level, which I understand the regulations specify. It is my intention to fit a...
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    Supplemental bonding to CPC in bathroom.

    I read on the forum that supplemental bonding in the bathroom need not/should not be taken back to the consumer unit, fine by me. I also read that there is potentially a problem if this is done. So when the bonding is connected to the CPC of say a class 1 light, isn't that effectively...
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    Danesmoor PJ 15/19 baffles.

    Hello, This old boiler has a baffle on each side of the fire box and a centre baffle holding them in place. The maintenance schedule refers to sealing this centre baffle with a ceramic fibre strip but non is fitted and the baffle is loose. Please can anyone advise ?. Regards, pcr.
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