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on a worcester 350 you can have separate hot water control, it's either on or off not timed though. the optional timer has an option to turn hot water off and have heating on.

first start for a diy powerflush, go buy a powerflush machine, will cost £500 ;)

with that installation it looks rubbish and if it's in the kitchen why couldn't they have put the condensate in to the waste pipe? a worst case scenario is using a condensate pump to do so. it also runs horizontally for a bit, no drop at all, which is a no no no as for that flue termination...

MI = manufacturers instructions

possibly a blending valve. only does it on hot water?

to repressurise the vessel properly you'll need an open point on the system i.e a drain point open otherwise you'll be pumping up the system pressure not the just expansion vessel. boiler pressure gauge has to be 0 before you start pressurising the vessel and 0 when the vessel has been fully...

do not resolder old pcbs, especially puma ones which tend to burn out! there's loads of possibilities on these boilers, take your pick from knackered pumps, sticking microswitchs, jammed wax capsules, blocked heat exchangers, inaccurate thermistors

if putting in the header tank don't just pour it in it'll be useless as the cleaner all stays in the tank and makes skin form on top of water, no cleaner gets in the system if pouring in to the tank, tie the ball valve up, drain enough water to empty the tank and a bit more, pour cleaner in...

a faulty seal on the top of the heat engine where the flue connects can cause it to make a noise at start up but it sounds more like a bus is idling right by your head or it could be the spark electrodes have warped, a very common fault. means the spark is weaker therefore takes longer to...

doing the job with weak chemicals that can stay in for up to 4 weeks will make a minor difference so i wouldn't call it de sludging, it's more like rinsing the system through. if your system works fine and you want to give it a little freshen up then you can get a tube of fernox restorer with...

i couldn't believe it took the fat bloke about 20 minutes to take the case off the vaillant boiler, it's one of the simplest cases to remove!! i'm sure he even turned up with a vaillant bowl to catch the water when he changed the 'coil', genius that bloke!!

i think all engineers are liars, the bloody lot of them. just seen rogue traders so not trusting anyone any more ;) i've just noticed you also lie ;) baxi/potterton have pretty much wiped their hands of the old powermax, some parts have been unavailable for a little while now and the boiler...

if it's not a condensing boiler it won't be condensing. the temperature of the products of combustion coming out of a condensing boilers flue is around 50-60 degrees, a normal boiler it's 100+. the flue on a condensing boiler has to slope back to the boiler, on a conventional boiler (unless...

i went to a house the other day, a job buggered up by a plumber (so not even a heating engineer) and the plumbers flush consisted of putting in some no nonsense cleanser then 1 week later draining the system and adding no nonsense inhibitor. made pretty much no difference and they left the...

drayton wireless stat and receiver have been around years and give very little trouble. when the boiler's condensing it's more efficient.

what do you mean re lit it? i didn't think it had a permanent pilot light or are you talking about the reset? is it a sealed system (i.e pressurised)? has the tank in loft run dry? try bleeding an upstairs radiator to see if there's any water in the system.

it'll more than likely be a blocked injector or the ignition lead is shorting out. the leads shorting out on these is very common. a bit more in depth and it could be a faulty pcb or gas valve but 9 times out of 10 it's one of the first 2.

just leave if they aren't leaking. it's leaks from the past that've sealed back up. at all costs do not try to turn the isolations on the pumps valves, they will start leaking again. no water leaks at the time, just leave it all alone

do not look in to getting a keston, they are useless. if you want an unreliable boiler that falls apart and parts cost a fortune then by all means get one, personally i'd want a good boiler. i think you'll find that if it's too much corrosion then it's to do with the external flue connection...

i'd never touch a flueless gas fire, i really don't trust their safety. i know british gas have a policy of not even working on them due to safety concerns, if a company like bg won't deal with them i'd be worried. i personally don't think i know a single corgi registered engineer that will...