Do you pay much attention to whether your using bends (spring or machine). Or elbows when installing a heating system, in copper.
Bends or elbows
- Thread starter Fredstudio
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Depends how good you are at bending. Sometimes bends can look neater. But if the pipework isn't on show then it doesn't matter. On a standard heating system. The slightly less water resistance you get from a bend vs an elbow will not make any difference
Thanks 
. Was messing round with bends under the floor when a elbow would be a lot quicker
. Was messing round with bends under the floor when a elbow would be a lot quickerNice to no the resistant effect is not noticeable, is on a small system.
Roughly, an elbow is equal to a metre of pipe!
and a bend is two less joints to fail
The resistance of an elbow is the same whether it is part of a large system or a small system. In a small system one elbow will create a higher percentage of the total resistance of the system.
Who didn't do rheology at school ( as part of Physics )
whistling involves the rheology of air flowing through lips.
I obviously did more useful things in school.
Rheology! Sounds like a clinic at the hospital! 
Formed bend every time, elbows are for Cowboys, course Cowboys, career change chancers & DaftyDIYers
1) Two less chances of a leak
2) Less resistance with a formed bend
3) Looks more professional
4) Less chance you'll torch the gaff
5) Cheaper than buying fittings
6) No flux near the copper tube, so it'll corrode it
That's only six reasons.
1) Two less chances of a leak
2) Less resistance with a formed bend
3) Looks more professional
4) Less chance you'll torch the gaff
5) Cheaper than buying fittings
6) No flux near the copper tube, so it'll corrode it
That's only six reasons.
How much resistance does a machine bent give half a meter?
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