Three questions about boilers

[harry]

Join a local oil buyers club. Our local one regularly gets oil 5p/ liter cheaper. You have to accept your oil at a set date, the tanker goes round a neighbourhood so saving road fuel.

[John Williamson]

You did read the bit where Davey said that he *runs* the local oil buyers club, didn't you?

[Dave Plowman (News)]

And have you actually tried this in the past 30 years?

Years ago, copper pipe was of a different construction. Modern thin wall stuff will kink when using a spring. And will need annealing before you start.

[harry]

  London SW

That is the table X copper. Can't be bent. You need toget table Y.

[The Natural Philosopher]

harry knows all there is to know about bent, especially bent coppers.

[Tim Lamb]

In message , "Dave Plowman (News)" writes

I use a bender and a spring. Is this wrong? As you say it kinks/crennelates on the inside of the bend.

>

[Martin Bonner]

At the same time? I've only ever used a bender *or* a spring.

I usually don't get too much kinking when using a bender

- I've pretty much given up on springs these days.

[Andrew Gabriel]

I could well imagine a high rate of returns of wrecked units, and/or callouts to initially installed units which don't work. Many of these were probably beyond the ability of the people who installed them, particularly the split unit ones. But this is all just guessing.

Wickes did them for some time after B&Q stopped. They're only sold in the summer, for cooling. However, I mostly use mine for heating.

[John Rumm]

This chap has also done a series of videos:

[John Rumm]

Good luck finding that in your local merchants...

So called "half hard" (formally Table X, now EN 1057 - TYPE Y) pipe bends just fine with a pipe bender.

[Dave Plowman (News)]

Thanks for putting me right. Didn't realise I couldn't bend all that tube I've managed to perfectly well over the years. I'll have to rip it all out now.

[John Rumm]

Make that:

So called "half hard" (formally Table Y, now EN 1057 - TYPE Y) pipe ^^^

[Fred]

I have done that with 15mm in the past but 22mm is a much harder to do that way!