Joining plastic to copper???

[OvertonPlumber]

Pushfit will blow of chrome pipe at 0.8 bar.
Chrome plating is harder than the metal used for the grab rings in pushfit.
Compression is also a bad move as tighten joints under floors/behind tiles will loosen as you tighten the rad valves.
Only solution is to file off chrome plated for good inch on the end of the pipe and solder endfeed elbows.
Kind of separates the men from the boys hehe.
I suggest diyers stick to chrome radsnaps.

 

[andy2306]

I could use copper, but getting all the kit for one job doesnt seem worth it!

Yeah, I see how a blowtorch and a pipe cutter is a major expense.



Asbestos heat mat, 2 wrenches, solder, bending spring, hacksaw, wire wool, copper pipe, to name just a few reasons.

 

[Slugbabydotcom]

can you use push fit on the the small chrome pipe to a towell radiator

No! I've seen one blow off and flood a house out as well. Read the instructions it tells you likewise

 

[dextrous]

Asbestos heat mat, 2 wrenches, solder, bending spring, hacksaw, wire wool, copper pipe, to name just a few reasons.

Hardly ever need - heat mat (an old tile will suffice if absolutely necessary), hacksaw (what do you intend to cut the plastic pipe with, unless you're going to buy a plastic pipe cutter?)

Don't need solder if you use integral ring fittings for a few pennies more. And a tub of flux will set you back a fiver.

A bundle of 20m of copper would probably be enough to do the job for about £35 (about £10 more than the same length of plastic), and copper fittings are cheaper that plastic, so the cost won't differ by such a huge amount. A plumber would probably buy any surplus pipe from you.

Don't need a bending spring either if you fill the pipe with sand before you try to bend over your knee.

Why do you need 2 new wrenches? What do you intend to tighten up the shower, tap and radiator with?

So you don't need wire wool to clean the chrome off the the rad tails? You'll never get it right with a file unless you intend to solder.

Anyway, it's all irrelevant since you seem pretty happy with using speedfit. It's a matter of preference and confidence in the materials being used. Just remember to use pipe inserts, silicon spray to help get the joints fully in, and clip the pipes properly to stop them flapping around. Ideally, you should pressure test your pipework before connecting up to water, but this will involve you buying something to do so, which, like you say, isn't something you're likely to use often. Although you could get some money back by e-baying it (bit like that other stuff you're not going to buy ) Finally, remember to flush all pipework through before connecting anything sensitive like a shower mixer.

Am sure it'll be fine for a while. Don't be offended by me - it's not your doing it that I'm on about, we all have to learn from scratch. Hope it goes well.