Would this be ok to run a high pressure shower?

[WaterTight]

Don't know anything about them. She has heart set on overhead drencher type shower requiring combi/HP set up. Didn't have time to measure pressure but kitchen hot seemed to have very decent oomph when turning it on.

 

[WaterTight]

Basically can I just treat it as a combi or are there other considerations? It's a small one bathroom place.

 

[kris]

Is that boiler a combi ???? Never heard of these don't know why but looks like a baxi solo lol. If that is a combi then you can treat it as a combi.

 

[kris]

Ah just checked it's an instantaneous water heater soz

 

[WaterTight]

it's a "multi point water heater"

i don't know if that is just an old name / early version of a combi or something a little less and therefore with special considerations for running showers etc

 

[kris]

The heater gives 6 litres per minute @ a &0 deg rise or 10 lpm @ 30 deg rise

 

[WaterTight]

Do you reckon this will perform well with it?

Midas Plus Shower | Bar Mixer Shower With Fixed & Adjustable Head

 

[WaterTight]

I'm pretty sure it will. Min 1 bar etc. But if someone could confirm that would allay any doubts.

 

[wattsie1987]

It will be fine providing shower manufacture allows. Some don't for instantaneous.

 

[WaterTight]

Cool thanks. I'll phone Aqualisa to make sure.

Do you happen to know why some showers would be unsuitable for instaneous water heaters?

 

[WaterTight]

Aqualisa say as long as it is a "minimum of 24 KW" it will be fine.

The instaneous heater manual says it has:

Heat input nominal: 23 kW - 78,480 Btu/h
Heat output nominal: 21 kW - 71,650 Btu/h

Is it the input or output that they would be referring to and how close makes no difference in this case? Or can 1-3 KW (depending which one they'll mean) make all the difference?

Thanks

 

[wattsie1987]

I imagine they are stating a minimum appliance kW to guarantee a minimum flow rate and to ensure a warm enough shower will be able to be delivered.. Ie to heat water by 35 degrees which is the industry standard for instantaneous water heaters with a 24kw appliance it will deliver that at 9.79 l/m. However this does not allow for heat/energy wastage as this is an input calculation so the flow rate will be infact lower than that but average correction factors can be applied. I think they would be referring to heat output (net) rather than input (gross) as it will then guarantee a minimum litres per minute. Ie 24 kW will deliver X ammount of water a minute at a minimum temp of X hope this helps.

 

[Ray Stafford]

Blimey, youngsters today!

The whole country used to heat their water with Britonys, Ascot and the Main "River" series - Trent, Severn, Medway, Mersey etc.

Just think of it as a combi on summer setting. It'll be fine.

Incidentally, the Britony IIT was that rarest of things - a market leading product from Chaffoteaux et Maury.

 

[wattsie1987]

Blimey, youngsters today!

The whole country used to heat their water with Britonys, Ascot and the Main "River" series - Trent, Severn, Medway, Mersey etc.

Just think of it as a combi on summer setting. It'll be fine.

Incidentally, the Britony IIT was that rarest of things - a market leading product from Chaffoteaux et Maury.

Brilliant piece of kit. Chaffoteaux went wrong when they started putting electricity in their appliances haha!

 

[WaterTight]

Just think of it as a combi on summer setting. It'll be fine.

Nice. Thanks.