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Andrew Smith
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3757
Experience:  Gas cooker specialist
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trianco redfyre oil boiler hot water (priority) gravity and

Customer Question

trianco redfyre oil boiler hot water (priority) gravity and pumped heating.
problem...radiators heating up when hot water selected how can that happen?
Submitted: 4 years ago.
Category: Appliance
Expert:  Andrew Smith replied 4 years ago.

Andrew Smith : Can you confirm the pipe sizing to the cylinder?
Andrew Smith : It it's 28mm then it will probably be gravity.
Andrew Smith : on the 2 pipes leading to the upstairs heating there should a non return valve to prevent heat creeping up that circuit when the pump is not on
Andrew Smith : this has probably failed
JACUSTOMER-9lfkortn- :

yes the pipe sizing to the cylinder is 28mm,
when you say a non return there is something there it looks like it has some kind of spring in it?
I assume to fit another it would go on the return back to boiler from radiator circuit?

Andrew Smith : Yes that is the one.
Andrew Smith : it prevents heat creeping up the pipe and let's water through the other way when the pump is on.
Andrew Smith : i take it that the pipe is getting hot?