fully pumped hot water system? -

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Join Date: Nov 2008

Posts: 3

hello all,
just a quick question that has a pretty long answer i'm sure.
need to install a very nice ensuite wet room but at present only gravity fed to shower. there are 4 bedrooms - 3 bathrooms. if unvented cylinder is used the stop tap is only 15mm so water flow is probably not great. this also hampers the use of a combi boiler. other option is a bigger HW cylinder, 100gallon cold water storage and fully pump the hot water side.
how do i balance the hot and cold to showers with pumped (3bar max i guess) and mains (5 bar ish)? also what sort of pumps have people used, how much and what brands are reliable please?
any suggestions greatly appreciated.
Loz

 

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Join Date: Nov 2008

Location: Hastings

Posts: 471

Pump both hot and cold then you've got balanced supplies.

You could use something like the aqualisa quartz or the mira event if you want a cheaper option.

Mike

 

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Join Date: Nov 2008

Posts: 3

Thanks Mike,
decided to go the unvented cylinder route... ariston primo. fitted by a competent qualified person...
didn't want to pump cold tank fed water to basins etc around house. is it legal to do that?
Loz

 

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Join Date: Nov 2008

Location: Hastings

Posts: 471

No problem with pumping everything. You would need to use separate single impeller pumps for hot and cold to prevent cavitation when a single outlet is opened.

Mike