Colin
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Registered: 4th Apr 02
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Im going to get a new boiler soon, next month or so if all goes to plan. Before I get someone out to have a look I want to have an idea what I can do.
Currently got a (system?) boiler, with hot water cylinder fed from a tank in the loft.
Its a 1 bed flat only 5 radiators. Showers electric.
I think I want to get a modern combi fitted but dont know how much work this will require.
Im a bit concerned how much work will be required to be done as ive got wooden floors & dont want to have to lift them.
Is it a case of blanking off or will I need major changes to pipework?
[Edited on 26-09-2008 by Colin]
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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Do conversions on a daily basis, done one today that had every room laminate floor`d
firstly the tanks will come out of the loft as they will not be needed, the cylinder will come out too, the heating circuit to the cylinder can be blanked in the cylinder cupboard so no floors need to be took up there
your boiler needs 2x 22mm heating pipes, a 22mm gas main a 15mm water main and a 15mm hot water pipe comes out of the boiler
it makes it ten times easier if there is an outside wall the boiler can go on because the flu needs to go outside along with the condensate waste pipe and the pressure releif pipe
If you have a loft it is very likely that no floors will need to be touched as all pipework can be ran in the loft
if your existing rads are in good nick and your happy with them they can stay (as long as they are fitted with thermostatic valves )
where is your boiler at the minuite?
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Colin
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Registered: 4th Apr 02
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Boilers on the outside wall in the kitchen, its got 5 pipes running into it, one is gas, I assume the others are H/W & C/H flow & return. Cant remember the sizes, i'll check when im home.
Original Flue hole can be used, theres a press relief valve already there. Condensate trap runs floor level with a trap in it if & remember then goes out at floor level iirc? Not a problem!
Not a huge job then? Cost, I was thinking £1k - £1300...there abouts!?
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Colin
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Registered: 4th Apr 02
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Also whats the scetch with buying one & fitting it myself? 
Ive done pipework before so know what im doing there, boiler can be comissioned by a corgi mate once ive hung it on the wall!!
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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ahh you already have pressurised heating then, and a condensing boiler
Piss easy job then
Its just a case of taking the Tank, Cylinder and associated pipework out and blanking the hot water heating circuit, providing the gas supply to your boiler is 22mm it will be very very straight forward
even if it isnt, running it in the loft isnt a hassle at all
I could do with a few of these types of jobs myself at the min, the ones we have had lately have been ball achers
Id say your estimate is bang on
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Colin
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Registered: 4th Apr 02
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Its not a condensing boiler ive got now, just a normal one, but its not too old. What I meant its no bother for running cond trap where it sits.
Not sure on gas supply, ive a feeling its 15mm, though the gas main comes in just at the other side of the kitcken & runs under the units so wouldnt be major to replace either!
Come to Scotland & fit mine  
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Colin
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Registered: 4th Apr 02
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Also...what sort of boilers up to the job? Small 2nd floor flat, 5 rads, 2 hot taps, no shower. Doesnt require much heating....but I dont want to underspec it at the same time!
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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Id love to
dont worry if its 15mm anyway as it can always go in the loft, condensate pipes arnt a bother cause they are 15mm plastic, you can fish them anywhere cause there flexible
Kitchens are the best places for boilers to go!
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daymoon
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Registered: 1st Aug 08
Location: Selby, North Yorkshire
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we had combi boiler installed.
took one day, no floors lifted, all mess cleaned up  used old pipes aswell. so only poiler was replaced.
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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quote:
Originally posted by daymoon
we had combi boiler installed.
took one day, no floors lifted, all mess cleaned up used old pipesaswell. so only poiler was replaced.
No scrap 
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daymoon
Premium Member
Registered: 1st Aug 08
Location: Selby, North Yorkshire
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yeah i know! and copper is worth abit..
plumber who put sink in just chucked the pipes out!
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deanmcreynolds26
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Registered: 15th Sep 03
Location: E46 //M3
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what boiler is it that u got in at the moment then?
sounds like you have a combi if there is 5 pipes running into it? maybe the old tank is redundant?
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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Cant be a combi if there is a cylinder in
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daymoon
Premium Member
Registered: 1st Aug 08
Location: Selby, North Yorkshire
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quote:
Originally posted by mattk
Cant be a combi if there is a cylinder in
well what the guy said above.. it may have not been removed...
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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nobody leaves a cylinder in,
no one with an ounce of common sense, they are made of copper
feel it, if its warm its in use
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Colin
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Registered: 4th Apr 02
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Deffo not a combi...................
I used to be a QS i a plumbing & Heating company, I know whats what!!
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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booooooooooo Our QS is a tit
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Colin
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Registered: 4th Apr 02
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It was a shite job, only done it for a couple years then quit to persue a job on the rig's as a Process I&C Techician.
Good move aswell as ive heard the company I worked for has had to pay off most its staff. Unfortunatelly for them they only done new build housing. Ah well.
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deanmcreynolds26
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Registered: 15th Sep 03
Location: E46 //M3
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strange one then... never saw a systems boiler with 5 pipes running into it Colin
systems boilers usually have a circuit within the heating that heats the water of the cylinder indirectly. unless youve got a direct cylinder, not that common in glasgow though. maybe more through your way as i know the east has water pressure problems
Is it quite an old system?
[Edited on 06-10-2008 by deanmcreynolds26]
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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he has a condensing system boiler with pressurised heating! the pipes will be
Heating - Gas - Cold Main Flexible Filling Loop - Heating - Pressure Relief
In that order
[Edited on 06-10-2008 by mattk]
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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YOU HAD BETTER APPRICIATE THIS PAINT DRAWING CAUSE IT TOOK ME 15 MINS!
This is a Y-plan central heating / tank and cylinder system
[Edited on 06-10-2008 by mattk]
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Colin
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Registered: 4th Apr 02
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Nice drawing
Ive had a guy out to have a look & im getting a new combi fitted.
Worcester Greenstar 24i junior.
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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Greenstars are good boilers, nice and simple to fit, shouldnt take him long
how much did he quote?
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Colin
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Registered: 4th Apr 02
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Between a grand & eleven hundred for the lot, plus vat I think probably..............
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mattk
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Registered: 27th Feb 06
Location: St. Helens
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not bad, very fair price
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