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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> Thermal Stores https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1424173672 Message started by wozzer on Feb 17^th, 2015, 11:47am

Title: Thermal Stores
Post by wozzer on Feb 17^th, 2015, 11:47am

I am looking (again) at putting in a thermal store to give me mains pressure hot water.
I currently have a "standard" heating system, with a conventional copper cylinder and cold storage tank - A salamander whole house pump boosts the water pressure from storage.
We have a new cold feed into the property now, 30+ L/min at roughly 3 bar.
I have found various ones on the web, and was wondering if the claims for Plate Heat Exchanger types versus in-cylinder coils are valid?
Anyone know who still sells plate exchanger types?
I also seem to be finding that a number of companies have gone bust?
Does anyone fit these things regularly?
Do they scale up fast?
What would the professionals recommend?
Thanks for any advice or opinions...
:-/

Title: Re: Thermal Stores
Post by thescruff on Feb 17^th, 2015, 5:16pm

Ok a quicky as I have to go out.

Thermal stores have there use, especially with solid fuel appliances, but would I fit one on a modern gas boiler ? probably not if the mains was good enough for an unvented. Needs lot of information about the system and components.

Plate v in-cylinder coil ? I prefer the in-cylinder as it has one less pump and less likely to sludge up.

The last question scale build up also applies to the above answer.

Scale in the store is unlikely as you are using primary water continuously and not fresh water, however unless you use plenty of inhibitor sludge is a real possibility