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Biasi 24S ignition problem: In both central heating mode and Hot Water mode the boiler lights briefly and then goes out. It continues to light and go out in a similar manner! Any thoughts on the subject appreciated Whats likely to be the number 1 culprit ?

There are available from around £64 nc vat

I will certainly second the Magnaclean as a good investment, Easy to clean and to add "Adatives" to the system The boiler Buddy is not so easy to service by a long way and one can't add nuffink

GEt someone competent it would appear that your present "expert" is anything but!!! Oh Good luck

Sometimes its possible to rip the soft copper tank due to the pressure need to move the "Nut" retaining the element unit. Could try some WD40 Switch of all electricity at the mains if you are not sure of your wiring Its a very simple job - though you could wind up needing a new tank

Your outlet pipe may be coated with crud. Try with a bucket to see haow it runs away . If it don't = Crude . Must be chipped awy or replace the pipe with plastic - the pipe may be also be of too small a diameter Otherwise Replace flushing mechanism

Yes that drop is ok - there are a large number of various bog connectors. The shower/ basin are best inserted into the vertical pipe where the vertical pipe is vented to the open air - thus inhibiting syphonage (

Could well be the auto air vent leaking pressure away. Suggest presurising to 1.5 and then check the auto air vent - if leaking replace. As mentioned crap in the system is number one cause of air vents leaking . Fit a Magnaclean and you will be astonished at the amount of metallised crap...

Can be bought from around £68.50 inc postage on Ebay - they sure can gather some sludgie crap and in no time at all. I find the Magnaclean to be more useful than the Fernox as it lends itself to applying the conditioner.

So whats the best combi system filter? efficiency/Maintenance /Cheapness

Or update the whole stack adding a nice rodding eye in the bottom of the stack - unless it goes straight into a man'ol

New Glow worm Flexicom Anyopne used and or have comments? Will this have any relavance to Vaillant? It hardly makes much sense to have differing boiler parts!

I just had a boiler moved in a house which involved rerouting the gas pipe. Corgi bod ran the pipe inside solvent weld plastic waste pipe before we poured the floor. Very tidy. Do you mean he used yeller plastic pipe ?

I can't see the pertinence of being under the stairs provided a "human" (not a contortionist) is able to fully service the boiler! If you liked you could plaster board under the stairs or use non asbestos type board. All the boilers air needs are drawn from without the building - probably...

decide on your boiler and there should be details of where it can be placed Naturally one can download the details prior to purchase all combi positions are much of a muchness. Here one can download Glow worm placement details...

You have checked for air and that the Auto air vent is working?

Why change indeed! Get a good combi (Vaillant / Bosch etc) I deal with Vaillants over 20 years of age and you can't wear them out - just the rubbers go after around 14 years.!

Just put a suitably sized hose onto a drain point lower than the Rads you are working on and drain. On completion one then has to refill the system at the boiler using the flexible filler. Fill to around 1.5 bar and visit rads removing air naturally keeping the system filled; for as you relese...

If it is asbestos I would be cautious However it would be very unusual for it to be so. Give the pipe a tap and you should be able to hear if its metal. If asbestos I would not cut the pipe but follow down to its join with the earthenware drain and remove there. A good plastics plumbers...

A system such as you "describe" would appear to be poorly designed in the first place - perhaps amend the design would be a first step certainly strategicaly placed auto air vents could be very useful. Auto air vents need checking from time to time as they have a tendancy to crap up