pumped hot water

[jamesboy678]

young lad just qualified as plumber and have been asked by a mate to sort his hot water out.

he lives in a single flat no upstairs and has a gravity fed system. the hot water is indirect fed and feeds one basin tap, one kitchen tap, mixer shower and bath tap. the flow rate is extremely poor due to the head pressure being ridiculously low. he has asked me if i can install a pump to help out with the hot water. has anyone got advice on how i would go about deciding what pump to use and how i would go about the job?

any advice much appreciated

 

[Rickster123]

Upgrade the hot water to unvented for the sake of a mixer tap?! Really?? Change the tap and forget all thoughts of hot water pumps would be my advice.

 

[CXR100]

hi jamesboy648
id personaly use an essex flange and drill to the cylinder to fit it (i personaly take the immersion out , feed a wire from the hole cut out of the cylinder thru the hole where the immersion was and slide the flange down, this way your hole you drill in the cylinder can be smaller than the way they tell you to put it in on the instructions ) nd take a feed from this to a booster pump , also take a feed from the header tank to the pump ( this will have to be lower than the feed to the hot water to prevent scalding) then cold feed and hot will be of same pressure! hope this is of help!

 

[Dotty]

hi jamesboy648
id personaly use an essex flange and drill to the cylinder to fit it (i personaly take the immersion out , feed a wire from the hole cut out of the cylinder thru the hole where the immersion was and slide the flange down, this way your hole you drill in the cylinder can be smaller than the way they tell you to put it in on the instructions ) nd take a feed from this to a booster pump , also take a feed from the header tank to the pump ( this will have to be lower than the feed to the hot water to prevent scalding) then cold feed and hot will be of same pressure! hope this is of help!

For the sake of a set of taps?

 

[CXR100]

how would new taps sort out poor flow rate?

 

[Dotty]

how would new taps sort out poor flow rate?

Read from post 21 on and you'll see!

 

[Avatar]

People underestimate the amount of work needed to fit unvented/pumped water systems . . . .

I would look at a nice modern combi boiler system first and foremost and only looked at unvented if this would not work for some reason.

Again there is a lot of extra requirements to fitting a pump and you cant just whack one on there for £100!

Pumps are like saniflows - they are for unusual situations where conventional plumbing just will not work.

In normal day to day plumbing in regular houses they are not nessesary (nessesarlly!)!!

 

[Earnest Lee]

Thanx for all the replies gents.
Again, got a lot of differing views!!!!
"Essex flange" seems to be coming up quite a bit. - Excuse my ignorance but what is it guys? - Sounds like this option could be a 'goer'?

Re. fitting a new combi boiler. - not a chance I'm afraid. 1. - Had nothing but hassle with em in the past and 2. - Just had installed a brand new Grant, oil-fired unit.
Cheers anyhow.