Solid Fuel Zone Valve

[rainydays]

Are there any heating engineers on this forum who deal with solid fuel, I have a query if there are?

Is there anything set in stone that states that you must use a normally open valve, if you use one to shut off a cylinder when it is satisfied on a gravity hot water circuit?

The guy who fitted it is HETAS but has fitted a normally closed one and I am getting conflicting opinions on if this is acceptable.

Really appreciate any help

 

[ProDave]

There are lots of rules and regs with solid fuel heating like metal header tank etc.

And if when the hot water tank is satisfied, you shut off the valve, just where does the heat from the stove go?  Answer it sits there and kettles in the back boiler.

you need a dump of some sort, e.g a radiator that can never be shut off.

 

[rainydays]

Thank`s Pro Dave, There is a heat leak rad.