could anyone tell me why my radiator literally burst when i put the heating on.just replaced a old rad for a new one upstairs.slightly bigger.primed it bled it topped the combi up to approx 1 bar.i did turn the wall thermostat to max to test the system.within 2 minutes heard two loud bangs from the downstairs kitchen rad.it swelled then burst.isolated the flow and removed it.on inspection it seeems to have popped two of the spot welds onthe rad,it is a very old thing.i have at least another 3 of these in the property.are they just not suitable for a combi system.the new rad heats up fine.your thoughts please.
rad blew up
- Thread starter steve123246
- Start date
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Keep an eye on the boiler pressure gauge as it warms up to make sure the pressure isn't climbing too high. If it is, that may be a symptom of the expansion vessel in need of some attention.
The pressure relief valve at the boiler should open at about 3 Bar if there is a problem, and, IIRC, most new rads will handle about 5 Bar pressure.
If all is well at the boiler I would suspect it's just the old rad is well past it's sell by date.
The pressure relief valve at the boiler should open at about 3 Bar if there is a problem, and, IIRC, most new rads will handle about 5 Bar pressure.
If all is well at the boiler I would suspect it's just the old rad is well past it's sell by date.
Can happen on older rads that are then put on to pressurised systems.
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boiler is baxi 24he.boiler seems fine in operation.
What makes it look fine?
i think thats what they are;the old steel vertical type,think my best course would be to isolate the old rads,and replace when funds permit,many thanks for the info..incidentaly a lot of the old pipe work looks like its a galvanised configuration with copper joints,could you tell me the life span of this material,is it ok as is.or should i replace it.many thanks in anticipation.
If the pipes are the thin stainless steel about the same thickness and size as copper then they were used about 1971 when there were copper supply difficulties.
Its life span was about 20 years. Perhaps a bit more if it was not disturbed and you tiptoed around in slippers!
Tony
Its life span was about 20 years. Perhaps a bit more if it was not disturbed and you tiptoed around in slippers!
Tony
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