In an earlier contribution to this discussion,
Roger wrote:

I have a 20 years old Glow-worm Spacesaver wall boiler which works
fine, providing pumped CH and gravity DHW.
B/Gas 3 star engineers keep telling me the they can "no longer
guarantee to be able to source spares"...ie a sales ploy to sell a
new boiler.
Our local council are supplying discounted high efficiency boilers as
a greening initiative, but I reckon the bill will be £2k with fitting
and maybe mods to the exisiting system.
Any of you experts got any impartial advice ?
My gut instinct is to try and source spares for my existing boiler to
keep it going as long as possible.
What do you think.?

I would update the system at a time of *my* choosing, and certainly *not*
employ BG to do it.

It's pretty certainly a sales ploy to try to sell you a new boiler -
although there *may* be a risk of not being able to get spares at some
point, which would leave your stranded. Meanwhile BG still seem willing to
take your money for a maintenance contract - which would be fraud if they
*knew* they couldn't get spares. [There are lots of on-line sources of
boiler spares. It wouldn't do any harm to line up possible sources of PCBs
(if applicable), fans (if applicable), thermostats, gas valves etc.]

Updating your system will cost quite a lot of money. Not only will you need
a new boiler but you will also need to modify the pipework and add a lot of
controls - zone valves, tank stat, TRVs, etc. to comply with the latest
regs. BUT, having done it, you will save a *lot* of fuel. Modern boilers are
much more efficient than 20-year-old models and, coupled with better
controls, you'll achieve the same or better comfort levels with a lot less
gas.

So it *is* worth doing - but you can choose your own time to do it.
--
Cheers,
Set Square
______
Please reply to newsgroup. Reply address is invalid.