Are 'Speed-fit' plumbing fittings and pipe suitable for use on a central heating system?
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you shouldnt use these on the primary flow and return on a conventional boiler.
some manufacturers like worcester will say not to use plastic on heating systems with their boilers , and also potterton suprima boilers need a different thermastat installed.
but yes you can,,, just remember to install the inserts into the ends of the plastic pipes.
Need more info here. What will the lines be used for?
Yes you can, the only word of caution if you live in an older house and there is still imperial size copper pre mid 1970`s as 3/4" is a tiny bit smaller than 22mm and the push fit wont grab properly.
Speed fit is fine for heating although there are cheaper brands around, any brand you use has to be barrier pipe, no plastic pipe within 600mm of the boiler, use the liners/sleeves/inserts for every connection whether pushfit or compression fittings, mark the pipe at the side of the fitting so that you can tell if you pushed the pipe all the way in, use purpose built pipe cutters and not hacksaws or the like to cut the pipe, and use plenty of clip supports if on horizontal exposed areas.
personally, it is cheap and easy, but some form of compression or screw tight pipes are much better for peace of mind.
Some people super glue push fit joints.
yes you can, but I personally would not.
plastic pipes came out in the 70's and were constantly leaking the modern ones are better butyou can't beat the reliability and longevity of copper and soldered fittings especially on heating. even on under floor heating they recommend min.of 1m. of metal pipe from heat source
No Problems except that they are bulky and ugly if they are any where that shows. By the way when you've sorted that problem the place to go for interior things like lamps and shades etc that are exceptional is www.pure3design.biz and for the same quality but for bargains Pure 3 Design Shop on eBay. Good luck with the plumbing.
no probs use them all the time
Hi percy yep Speedfit or HEP20 are both good for central heating go for barrier type pipe to BS7291 and make sure you use the inserts and follow the boiler manufacturers recommendations regarding proximity to the heat source. I would advise you to do any visible pipe runs such as radiator tails in copper the copper will fit the push fit ok.
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