Pushfit stop end on heating circuit

[DanDare]

Are push fit (JG Speedfit) stop ends ok for central heating circuits?

There's a pair of 22mm copper pipes under my floor blocked off with speedfit fittings (I think one is Hep one is JG Speedfit).

I don't know how close they are to the active circuit, so I don't know how hot they'll be getting.

Thanks

 

[P.S.]

Yup,

had no problems with them. You can get copper ones,

but still use rubber 'o' rings...

My whole water and heating is plastic (oldest fitting is 12years)

Any plastic fittings should be more than 1m from the boiler. As they are stop ends, hot water will not be flowing through them anyway, just the heat from the pipe.

 

[dd1975]

it'll be sound mate loads of plumbers use plastic now. you should have no worries

 

[clarkerothwell]

yer sound... i had one about a month or two ago which had been rubbing on the top of a wooden floor board, it wore all the way through the fitting and the leaking water took the ceiling down.

Another plastic pipe under the floor down stairs had been expanding when hot, bending and rubbing against the brick wall, this also wore through.

OK for bathrooms and cold water, but not much confidence for heating systems, but only my opinion.