I have nearly completed mine using a Grant Oil fired external Combi
boiler. And estimate £2500-£3000. The boiler was £1300. This is a 3
bed semi (Ex Council House), a 2500 litre tank, It also has a largish
My investigations suggested Tank Gas may of been cheaper to install
because of cheaper boilers (except I could of done less of it myself)
But running costs higher, you are tied to the gas supplier.
I used a large tank as it will enable me to buy more when prices are
The main thing I have left to do is get an oftec commisioning engineer
to formally commision the system so that buiding regs are complied
On Mon, 10 Nov 2003 07:02:44 +0000 (UTC), "Alex"
Gas that comes in tanker is ALWAYS more expensive to run than oil. I'd
stick with oil frankly...
Most of the cost is running the plumbing, and making good the mess. It
depends entirely on the layout sadly.
I'd say not less than £3000 and not more than £10000 tho.
Could be even higher if you use expensive bits - like a nice system
boiler and mains pressure tank...and lovely stainless steel towel warmers etc
Get the biggest tank you can afford/have space for, so you can fill lup
when oil prices are lower...
On Mon, 10 Nov 2003 18:31:38 +0000 (UTC), Alex wrote:
Fairly sure I've seen prices on the web, probably not on makers sites
but on resellers. 770l is a bit small, well, says him who will use
2000l between now and March... But this house isn't very well
insulated, is drafty and in an exposed position 1400' up on the North
Dave. pam is missing e-mail
Under local bye laws or Enviroment Agency rules? I was under the
impression that you didn't need to have a bunded tank for a domestic
(only) property. Bear in mind that you don't need to get one of the
double skined plastic bunded tanks, provided there is a leakproof
containment around the tank capable of holding 110% of the tanks
capacity you are OK. But think about rain...
Dave. pam is missing e-mail
As I understand it in domestic use and 2500 litres or under as long as
certain conditions are met then no need. See
I believe you still need to do it under a building notice (as of April
2002) - you defintitely do for the complete system. In my case they
want to see a commisioning report from an oftec registered installer.
On Tue, 11 Nov 2003 00:50:49 +0000 (GMT), "Dave Liquorice"
If you are doing it all yourself, I would say £3K for oil.
Checking my database, it says it cost me £1600 plus the cost of the
boiler (around £1000 - I got a grant for a condensing one and can't
remember the grant amount...)
This doesn't include the cost of the pipe and fittings (I, [foolishly
now I know] categorised this all under "plumbing" - but taking half
the cost of the pipe and fittings this takes me to less than £2K plus
This is for a 4 bed detached with 13 radiators (including 1 chrome
bathroom one and 2 Victorian style column ones), a 1300L oil tank and
decent quality pump, controls etc. I did this 18 months ago.
I did everything myself and (foolishly) did it in 15mm pipe and
compression fittings - If I were doing it again, I would do it in
microbore and would have the confidence to use solder fittings to save
I was also doing it as part of a total renovation so didn't have to
cost replastering etc but if it is a DIY job then this shouldn't
amount to too much - it is mainly time.
Also, go with your whole list to your local plumbers merchants and
score yourself a big discount. I think I got over 40% off list. It
works out the same as bandq for the common stuff but means you get the
big stuff which they don't have at a good discount too.
And definitely check out grants for condensing boilers - can't
remember the site but a quick google will find it for you.
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