flexi hoses

[doblo7]

Dear viewers,
Can flexi hoses be used in connection to a indirect water cylinder or is this against regulations. The reason i ask is I have encountered difficulty in matching up existing pipework and thought it to be an easy or lazy way around solving it. I know I should bend the copper pipe to match. Anyone there have a better or quicker solution?
doblo7

 

[corgigazza]

assuming you mean unvented

Dont know about regs, but dont use them have seen them fitted before and they burst flooding the house, especially when the ex vessel not working correctly seems to only flood at night when customers are in bed nice surprise for mourning. when i worked for council contractor covering cambridgeshire see at least 3-4 floods a year repiped all in solid copper.

but hay flexis will last at least 4 years

 

[doblo7]

thank you corgigazza

 

[ChrisR]

Having just put one on an expansion vessel I've been worrying. Remember they're meant for tap water. How well they stand up to 80 degs CH water I don't know.

 

[Slugbabydotcom]

assuming you mean unvented

If it is unvented dont even dream about it. Very dangerous practice. You need unvented qualification before you can connect anything to unvented cylinder.
Recent gas installer magazine rogues gallery showed a combi that was connected up with these including the gas!!! Another no no
I confess that I used a washing machine hose to connect a replacement external pressure vessel to a combi and got away with it. That was 4 years ago and still going strong, but thats ok @ 3 bar pressure and 80ºC as well. I still expect a smacked botty if the wrong people find out about it though.