Combi copper hot water cylinder: how do they work?

Calahonda52 · 05-07-2020 09:03AM #1

Looking at installing one of these on the second floor of a two storey house.
The link below is just an example.

https://www.buildingservicesindex.co.uk/entry/36983/Kingspan-Environmental/Kingspan-Albion-Combi-copper-hot-water-cylinder/

Do they have a storage tank c/w ballcock or are they just fed off the rising main.

The second question is can they be used with a tank fed electric shower, with the shower on the same floor.

Any other thoughts occur?

05-07-2020 09:26AM

I don't get involved in cylinders at all so happy for the real plumbers to correct me but you will have almost no head height so you will be installing a pump. Usually in apartments that have pumps we install Triton T80Z on after the pump rather than relying on inconsistent mains pressure. This is a better option that installing a T90SR before the pump

Calahonda52 · 05-07-2020 10:49AM

I assume the 80Z is off the pressurised cold from the tank.

What model would you suggest is they wanted to use the hot water from the cylinder?

05-07-2020 11:19AM

Calahonda52 wrote: »

I assume the 80Z is off the pressurised cold from the tank.

What model would you suggest is they wanted to use the hot water from the cylinder?

I wasn't thinking about tank being pressurized. What pressure woud it be?

Had a call about an aquastream connected to a pressurized tank during the week. Plumber thinks it was a bar of pressure & he was wondering why the pump blew.

Lenar3556 · 05-07-2020 05:43PM

Sleeper12 wrote: »

I wasn't thinking about tank being pressurized. What pressure woud it be?

Had a call about an aquastream connected to a pressurized tank during the week. Plumber thinks it was a bar of pressure & he was wondering why the pump blew.

A bar of pressure feeding that would be ok though would it not? I know it wouldn’t want to be much more.

Calahonda52 · 05-07-2020 05:53PM

Sleeper12 wrote: »

I wasn't thinking about tank being pressurized. What pressure woud it be?

Had a call about an aquastream connected to a pressurized tank during the week. Plumber thinks it was a bar of pressure & he was wondering why the pump blew.

Sorry, what I mean was what sort of shower would you suggest if they wanted to use the hot and cold as opped to just the cold

05-07-2020 10:20PM

Lenar3556 wrote:

A bar of pressure feeding that would be ok though would it not? I know it wouldnâ€™t want to be much more.

Aquastream can have up to 1 bar maximum. Most showers are are around 3/4 bar maximum.
The call I got was "its only around a bar"

Calahonda52 wrote:

Sorry, what I mean was what sort of shower would you suggest if they wanted to use the hot and cold as opped to just the cold

If you are looking for a power shower in a plastic box then the Triton Novel SR silent running thermostatic power shower is the best option at 14 lpm. Very quiet and they give less trouble than any of the competitors. Aquastream gives 18 lpm is way overpriced and tend not to be as reliable as mira or Triton power shower

Combi copper hot water cylinder: how do they work?

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