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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...

Thanks for the replies. The boiler is conventional so a programmable stat is not ideal, I'll have a look at the Heatmiser stats.

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...

Many thanks for your helpful responses and apologies for late reply, have been away. The boiler is not Neon, it is a Xeon 50 by Saunier Duval. Here is the link:- http://www.saunier-duval.co.uk/manuals/pdf/current_products/installation_Xeon60ff.pdf This spec' confirms that the vent and...

This is a family member's house, I will have to check, but I know it is a wall-mounted gas boiler by Neon.

Thanks for the reply. The problem is that air has continually circulated the system from new, with no sign of any leaks. I am exploring the possibility that airated water is drawn into the system each time the pump starts. When the CH is on the air collects in a radiator, but for HW only the air...

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...

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...

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...

I have recently done a similar job with similar results. The poor flow to the cistern was due to me forgetting to remove the flow limiter which was fitted inside the water inlet. I fitted a monobloc tap with flexible hoses and have come to the conclusion that these taps and hoses restrict the...

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...

Thanks Taylor, yes my mistake, I meant to say zone 2. Trouble is, I see many zone diagrams and they are not all the same.

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...

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...

Wilhelm, Thankyou for your prompt reply. Can I ask, are you familiar with this baffle arrangement as I was surprised to find that the service engineer left it without this seal, which must affect the boiler efficiency. I came to look at it because the baffles are rattling. Regards, pcr.

Hello, I had this problem and found that replacing the U-bend under the bath with a deeper one fixed it. The original bend was very shallow and the water level in it fell when emptying the bathroom sink. Regards, pcr.

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.