Re: Re: [Slightly OT] Bolier woes

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

thanks ... one option we have in-mind is to go for a couple of
Gledhill's, one per floor ... they've recently updated their range to
what they call A-series (IIRC), not sure why ... good to hear the
approach does work well !

Chris


On 3 Nov 2007, at 08:20, ianh1000 wrote:

> Hi Chris,
>
> I have a heat store system. The tank itsef is not at mains pressure,
> there is a second coil inside the tank that is at mains pressure but
> the tank itself is not. The heat is also taken form the store for the
> central heating, this stops the boiler having to fire as often which
> should be more efficient. My unit is a boilermate by Gledhill.
>
> The tank is just used to store heat, the mains water comes into the
> house through a coil in the heat store tank and then out of the hot
> tap. I have had a few technical problems with my one over the last 9
> years but otherwise very happy with it. It seems to cope with
> continual showers and even one person having a shower and another
> running a bath.
>
> Regards
> Ian
>
>
> --- In ukha_d@xxxxxxx, Chris Hunter <cjhunter@...> wrote:
>>
>> ??? ... 'thought a thermal-store gave mains-pressure hot &
cold
>> without pressurising the tank itself ??
>>
>> Chris
>>
>>
>> On 2 Nov 2007, at 11:45, JonS wrote:
>>
>>> --- In ukha_d@xxxxxxx, "Neil Ball" <neilball@>
wrote:
>>>>
>>>> If you want to integrate several heat sources then you
need to be
>>> looking at
>>>> thermal stores/heat banks - generally cylinders with
multiple coils
>>> for
>>>> connecting to the boiler, solar panel, back boiler etc.
This keeps
>>> the water
>>>> in the different heat sources hydraulically isolated,
supplies heat
>>> directly
>>>> to the heating system from the tank and uses a plate heat
exchanger
>>> to
>>>> instantaneously heat your hot water thereby supplying
mains quality
>>> water
>>>> direct to your hot taps .
>>>
>>> I would add is that for a system that can deliver 2
simultaneous
>>> showers worth of water you will have to go for a more
expensive type
>>> of thermal store, as the simple cheaper ones (such as via
Navitron)
>>> cannot deliver.
>>> Also you will be restricted by the number of plumbers willing
to
>>> install this type of system.  I couldn't find one in south
>>> Suffolk :-
>>> ( so went for a conventional main pressure system.
>>> Note the thermal store will almost certainly be mains
pressure, esp
>>> if you have a system boiler. If you want to avoid mains
pressure
>>> tank
>>> at 80-90C you need to match the heat sources and tanks coils
etc etc
>>> v carefully.
>>>
>>>
>>>
>>>> If you want very
>>>> good quality and need a larger boiler output then I would
suggest
>>> the Broag
>>>> Remeha Quinta 30 (28kW output). This can be used with
0-10v input
>>> from an
>>>> external controls system to control the boiler output
which gives
>>> scope for
>>>> some HA at a later date. I come across them regularly on
larger
>>> homes and
>>>> have found both the boiler range and service from Broag
Remeha to
>>> be first
>>>> rate.
>>>>
>>>
>>> Its nice to hear Broag get a good writeup, I've just had an
Advanta
>>> Plus fitted. Do you know if the 0-10V input applies?  I didn't
find
>>> the consumer facing web site too helpful.
>>>
>>> Jon
>>>
>>>
>>>
>>>
>>>
>>>
>>
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