Cap internal blow off (prv) and fit on pipe work instead?

[Gasmk1]

it is against gas safety regs as you are altering the design of the boiler

 

[Last Plumber]

If it has isolation valves beneath the Boiler I would say no. You do not want a situation where the boiler can be isolated without any form of relief.
If you permanently removed the isolation valves then it would be safe.

 

[Chalked]

Another problem with h doing it that way, is that the valve would be open and the valves are not designed to hold pressure on the outlet side of the valve.

 

[tolly]

Remeha advanta plus and it has the usual isolators on the flow return and Gas as they enter the boiler. But if you shut these on a system boiler or even a modern heat only boiler then the flow switch won’t allow the boiler to fire ?

Ive never come accross a heat only with isos underneath or on top?

 

[ShaunCorbs]

Ive never come accross a heat only with isos underneath or on top?

System boiler

 

[tolly]

System boiler yes. But he said "modern heat only boiler"

 

[tolly]

I dont call system boilers heat onlys.

 

[ShaunCorbs]

Heat onlys don't have prvs

 

[tolly]

Heat onlys don't have prvs

I know, read the message i quoted bud. He wrote about closing iso's on heat onlys...thats why i said ive never come accross a heat only with iso's. Incase it goes kaboom with no prv.

 

[ShaunCorbs]

I know, read the message i quoted bud. He wrote about closing iso's on heat onlys...thats why i said ive never come accross a heat only with iso's. Incase it goes kaboom with no prv.

40cdi has ISO valves and no prv there out there