Pumping mains cold and vented hot

[wwwebber]

I want to pump mains cold and vented hot water to a thermostatic mixer (long story, water tank too small and I cant afford to replace it or go with a vented cylinder)

Just been told by Salamander helpline that I can do this using this :-

https://www.salamanderpumps.co.uk/product/ct-force-30-tu/25

Is that correct ? - I thought you couldn't pump mains cold ?

Cheers.

 

[stem]

The link to the literature you have provided states:

Normally the cold mains goes direct to the mixer and just the hot water side is pumped.

 

[Hot&Cold]

Is that correct ? - I thought you couldn't pump mains cold ?

There is provision to increase domestic mains water to a higher pressure/flow,there are many limitations and any outlet on that line needs to be correctly selected and installed,that includes having a shower mixer that will mix with the unbalanced pressure/flow to a suitable temperature.


Its do able,whats your budget ?

 

[Madrab]

I thought you couldn't pump mains cold ?

Test your cold mains for flow and pressure - You can only pump the mains up to a max of 12L/Min and a raise the pressure to around 1.5bar. If you mains is at this level or above then the mains could not be pumped.

 

[wwwebber]

Thanks for the replies. I've decided swallow the cost and go for a bigger water tank - too variables for anything else.

Cheers.