Krib Hot Water System

John.G

Any comments on this??. reminds me a bit of the Willis electric which was/is a externally mounted "immersion" heater, I have seen a few(Willis) in the UK.

https://www.irishexaminer.com/breakingnews/lifestyle/homeandinteriors/has-krib-sounded-the-death-knell-for-the-immersion-912677.html

Willis link: http://www.elemex.ie/external-immersion-heater/

Ubbquittious

So they are heating up some water with an electric element and pushing it in to the cylinder from the top.



You'd be better off connecting a continuous modulating gas instant water heater after the cylinder than bothering with that. Or else replace with a fully electric one. I don't know if anyone bothers with the electric instant water heaters here but they are popular in the states. The electric ones are about 27kW so might be hard to connect in a normal house without first beefing up the electrical supply

The Willis one I doubt is a whole lot better than just using the 'sink' part of the element

John.G

No, The Krib is using either a gas or oil fired boiler or a heat pump combined with a plate HX, its the willis that's electric.

xl500

But surely with a modern well insulated cyclinder if you heat it normally and you have a full tank and you draw off some water for shower etc the water remaining loses very little heat as the tank is well insulated so when heating comes on again it only replaces the water used plus the small amount of heat loss I see very little heat loss on my cyclinder in between heating cycles and I set to heat morning and evening but if no one draws water during day the evening cycle is very short as Water temp has hardly dropped for me I would not recover the cost of this KRIB unit over 10 years let alone the 2 they are claiming

freddyuk

https://heatingpartswarehouse.co.uk/product/willis-external-immersion-heater/?gclid=EAIaIQobChMIh6iLiP3q4gIV6b3tCh3gAwGEEAQYASABEgIUA_D_BwE

Are they having a laugh?

John.G

xl500 wrote: »

But surely with a modern well insulated cyclinder if you heat it normally and you have a full tank and you draw off some water for shower etc the water remaining loses very little heat as the tank is well insulated so when heating comes on again it only replaces the water used plus the small amount of heat loss I see very little heat loss on my cyclinder in between heating cycles and I set to heat morning and evening but if no one draws water during day the evening cycle is very short as Water temp has hardly dropped for me I would not recover the cost of this KRIB unit over 10 years let alone the 2 they are claiming

Yes, its not like they have re invented the wheel, if one assumes a 300 litre cylinder heated continuously then the losses are ~ (3.98*24), 95.5 kwh/year, but as there will also be some small losses with the Krib system then assuming net losses at 80%, loss is 76 kwh/year or ~ €63/year based on oil @ €0.0.7/Litre & 85% boiler efficiency.

John.G

freddyuk wrote: »

https://heatingpartswarehouse.co.uk/product/willis-external-immersion-heater/?gclid=EAIaIQobChMIh6iLiP3q4gIV6b3tCh3gAwGEEAQYASABEgIUA_D_BwE

Are they having a laugh?

The original Willis externally mounted heater was quite popular in the UK I believe, maybe they were retrofitted to a lot of old direct heated hot water cylinders?.
They also make a solar powered one.

colm_mcm

That article must’ve cost them a few quid,