Push fit copper elbows onto plastic speedfit pipe

[deanomc]

I have added a new radiator and pipework but unfortunately I have a joist that is directly below where I need a 15mm elbow to connect up to the radiator. I have used plastic speedfit piping and fittings throughout which means if I notch out the joist the notch would be too big as the plastic fittings are bulkly. I am thinking using a smaller Cuprofit pushfit copper elbow would be suitable as they are much smaller therefore I will be able to notch the joint out without risking weakening it. My question is this.....Has anyone had experience or knows that if I am able to connect 15mm speedfit piping onto a copper pushfit connections. This will then be connected to a copper pipe tp the radiator. Thanks. ps. there is no way I can drill through the joist as there is no room on the other side to fit an elbow.

 

[leelister6]

I would put a bit of copper in either side of the copper pushfit (one to the rad and one across the notched joist) then a speedfit straight connector between the copper pipe and the speedfit pipe between the joists. Or use a solder copper elbow instead of copper pushfit

 

[chris watkins]

Are you using copper tails up into the rad valves ? If so, one soldered elbow out of position with a push fit coupling clear of the joist, job done.
And smaller than any push fit fitting.

 

[brum]

as above soldered elbow..brum

 

[deanomc]

Yes, I am using copper tail. Soldered elbow makes sense. cheers people