Re: Re: [Slightly OT] Bolier woes

[Chris Hunter <cjhunter@xxxxxxxxxxxx>]

??? ... '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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