I'm planning to convert the loft to include a new bath/shower room.
I'd like to get rid of the big cold water tank which is only used to feed
the hot water tank. I'm sure we can find space for the existing boiler
header tank above the new radiators.
I have read the FAQ and don't want to change my current boiler for a combi
a) Its only 3 years old, not condensing but reasonably high efficiency
claimed, I'm sure it is big enough...
b) The boiler is in a utility room out the back I would expect a long delay
to get hot water at basins in the bathrooms.
c) As the boiler is fed by a 22mm gas pipe that get there via a tortuous
route through the house and kitchen (via hob and oven), I suspect it would
need to be replaced with 28mm direct at considerable expense/ disruption.
d) We have hard-water and I concerned about reliability/ maintenance costs
of a combi.
e) SWHTBO likes the airing cupboard. (but current old tank with jacket will
be warmer than any modern replacement!)
I think I would like a "fast recovery" pressurized hot water tank. Is it OK
to have a pressurized tank with gravity fed heating coil? The current
boiler cannot be pressurized and seems to say this is not recommended only.
Is a pressurized hot water tank, gravity boiler loop only a sensible