Solid fuel cooling

[Nordio]

Can anyone tell me if this valve has an adjustable temperature range?
http://www.caleffi.com/en_IT/Technical_brochures/01058/01058.pdf

Its for a 40kw solid fuel log batch boiler and opening at 90c would be preferable.
The f&e is 1m above the boiler. Is this enough head height to purge the boiler with coolant?

 

[ecowarm]

You can get them in different temps but it needs to be connected to the mains water supply

 

[dancinplumba]

do they have WRAS approval ??

 

[ecowarm]

you can get ones that are if thats not

 

[Nordio]

Not as far as I'm aware. Is that a problem?

 

[ecowarm]

any fitting connected to a water supply in uk must be WRAS listed

 

[Nordio]

Danfoss and Watts make wras approved ones and Honeywell I think but they are single port valves for cooling coils within the boiler itself.
This particular boiler has no cooling coil fitted.

 

[Nordio]

any fitting connected to a water supply in uk must be WRAS listed

This application isn't "water supply"! Does that exclude the Caleffi four port valve from needing wras approval?

 

[dancinplumba]

if its fed from storage tank its ok

 

[ecowarm]

It is water supply as it needs to be connected to the mains, unless you're using on a boat or something

 

[Nordio]

Its fed from the mains. 1 bar gives 26/l minute.
Though its still not a "water supply" as in potable water for consumption.
I could feed it from the f&e cistern but I think with the 1m head the flow rate might be lowish.
Guess I could try it and see. Non approval doesn't mean I can't fit the valve.
Caleffi are quality kit and many of their fittings are wras approved.

 

[ecowarm]

If its on potable water or not it still should be wras.
And connect to the mains or it will not do the job required

 

[Nordio]

Ok Cheers.