Electric Shower

[PlumbersMate]

A customer has asked me to fit their shower for them. It is Hot and Cold Fed but Electric. Will it need a designated feed for Hot from Cylinder and from CWSC for Cold ? They have Open Vented Cylinder. Or can I just tap into any Hot & Cold pipework? Thanks

 

[WaterTight]

do you mean it's an internally pumped power shower?

 

[SimonG]

Need a tanked cold feed.

 

[PlumbersMate]

yeh i belive so mate. Only talked over the phone so far. All they said is its an electric shower but its H&C fed, not just cold

 

[PlumbersMate]

Need a tanked cold feed.

Thanks Simon. What about the Hot?

 

[SimonG]

I'd take tee from cylinder to shower or flange connection to cylinder. Depends on pipe route etc.

 

[PlumbersMate]

Thats what I was planning. Tee straight into the pipe that comes directly out of top of cylinder, then up into the loft, and back down through bathroom. Thanks again mate

 

[Nat]

Get the info you need by checking the manufacturer's instructions. They'll tell you exactly what you need and then you can't to wrong, mate! You could get model number and check online then you'll know what's involved for pricing etc.

 

[PlumbersMate]

Get the info you need by checking the manufacturer's instructions. They'll tell you exactly what you need and then you can't to wrong, mate! You could get model number and check online then you'll know what's involved for pricing etc.

Would normally but on the phone customer said she was bought it for xmas and has since lost the instructions! lol

 

[PlumbBobBob]

should still have box with name and model maybe?

 

[Nat]

should still have box with name and model maybe?

My thoughts exactly. Then check on t'internet.

 

[kay-jay]

Thats what I was planning. Tee straight into the pipe that comes directly out of top of cylinder, then up into the loft, and back down through bathroom. Thanks again mate

the tee needs to be on the horizontal part of pipework after the 90 degree from leaving cylinder. the tee also needs to go downwards before bending back up and into loft.
bending back up rather than use elbows as it offers less resistance. this stops air in the supply because air bubbles don't travel downwards.

KJ

 

[Kimou]

Do you know what the vertical pipe out of the cylinder is for? As the pipe comes out about 4" of it.

 

[AWheating]

customer has lost the instructions, well do as steve suggested and get em of web/manufacture and CHARGE EXTRA for the effort!

 

[PlumbersMate]

Do you know what the vertical pipe out of the cylinder is for? As the pipe comes out about 4" of it.

You mean the open vent pipe?

 

[kay-jay]

should now go horizontal before going vertical to the vent. and you should tee off the horizontal bit.
interesting really as pump manufacturers will tell you to shell out on a flange but shower manufacturers advise against flanges as they impede flow from the cylinder. therefore they reccomend the tee option which happily is much much cheaper.
if you have an old installation where the vent goes straight up then this isn't an option until you have altered the pipework

 

[PlumbersMate]

no it has got the horizontal run first, and its over the recommended minimum which i believe is around ther 450mm mark? Am i right that the tee has to go down before it goes up so that any air will carry on towards the vent pipe, and not into the shower pipework? Thanks everyone for your input as always, i love this site for clear advice without any people (most of the time) extracting the urine

 

[PlumbersMate]

should now go horizontal before going vertical to the vent. and you should tee off the horizontal bit.
interesting really as pump manufacturers will tell you to shell out on a flange but shower manufacturers advise against flanges as they impede flow from the cylinder. therefore they reccomend the tee option which happily is much much cheaper.
if you have an old installation where the vent goes straight up then this isn't an option until you have altered the pipework

Slightly off topic but went to a customers the other day and straight out of cylinder was a compression elbow, about 50mm of copper, then another compression elbow before going straight up to tank. I told customer this was bad practise and she said british gas done it!!!

Is this a dangerous set up?

 

[Gray0689]

Slightly off topic but went to a customers the other day and straight out of cylinder was a compression elbow, about 50mm of copper, then another compression elbow before going straight up to tank. I told customer this was bad practise and she said british gas done it!!!

Is this a dangerous set up?

Why would it be dangerous?
Crap workmanship yes but not dangerous

 

[kay-jay]

no it has got the horizontal run first, and its over the recommended minimum which i believe is around ther 450mm mark? Am i right that the tee has to go down before it goes up so that any air will carry on towards the vent pipe, and not into the shower pipework? Thanks everyone for your input as always, i love this site for clear advice without any people (most of the time) extracting the urine

yep! you have got it. connect into the tee from beneath with a deep looping pipe formed on a bender to go up to loft, if it is too shallow a bend the pump may be powerful enough to still draw air in.

good luck mate.

 

[PlumbersMate]

Why would it be dangerous?
Crap workmanship yes but not dangerous

Don't know tbh, thats why I thought it best to ask! lol Cant see why he done it the way he did though, was ample room for anything in that cupboard, was as big as my bathroom!!!