Ron wrote:
> "Terry Fields" wrote in message news:cj1j18...@mid.individual.net...
>
> Ron wrote:
>
>> I am getting central heating in a house that at present does not have a
>> boiler and radiators.
>>
>> I want the boiler in the attached garage but the fitters have suggested
>> putting it in the vacated airing cupboard in a bedroom that contains the
>> HWC.
>>
>> Presumably because it makes it easier for him.
>>
>> Would you have the boiler in your bedroom?
>
> Have you considered a heat store? Cylinder in the airing cupboard,
> boiler in the garage; instant DHW at full mains pressure, reduced
> boiler cycling, radiators fully hot within a minute or less?
>
> Would a heat store system like you suggest be more economic than a gas combi
> boiler?
Probably not. The idea of a heat store is, well, to store heat. This
means that when the temperature of the store falls below a set level
(mine is 65C) the sensor will ask the boiler to supply heat, until the
store reaches its upper limit (72C). Heat will be lost to the airing
cupboard; I've calculated my heat loss to be 110W. The boiler
fires up for 5 minutes every nine hours in my system.However, it's
important to note that other demands for hot water (to the central
heating, or domestic hot water) will also result in 'calls for
heat', and these will keep the store topped up anyway.
The benefits for you are: boiler in the garage, a simpler type of
boiler called 'heat only', a nice warm airing cupboard (which with a
combi system needs its own radiator = heat loss), all but instant
mains pressure hot water supplied from the store (a shorter run than
from the garage), central heating fully hot within a minute. This
system is more complex than a combi, but is comprised of separate
parts (and so more easily serviced and repaired). It will also cost
more initially. HTH
--
Terry Fields