water heating only on combi?

[Jennie]

Hi all,
I've got a question on behalf of a friend:
Can you connect the F&R together on a combi boiler and use it just as a water heater?
Thanks all,
Jennie

 

[Killy Bing]

Yes but it isn't great for it plus i don't think the warranty will be valid
why jennie?

 

[REDSAW]

needs a heatsink.
why would you want to do that?

 

[Mike Jackson]

Use an Intergas.

 

[albatross]

Hi all,
I've got a question on behalf of a friend:
Can you connect the F&R together on a combi boiler and use it just as a water heater?
Thanks all,
Jennie

Yes but why?

 

[Jennie]

Hi everyone,
Thanks for your feedback.
Not sure why - a plumber friend asked me to ask.
:-D

 

[Billy Bob Bob]

Hi everyone,
Thanks for your feedback.
Not sure why - a plumber friend asked me to ask.
:-D

why ?we dont bite much

 

[Ray Stafford]

Summer setting on all combis effectively does this, doesn't it?

 

[Ermintrude]

Yes ray but has a heat sink for pump overrun to cool hex .

 

[Ray Stafford]

Yes ray but has a heat sink for pump overrun to cool hex .

So stick one rad on the circuit without TRVs etc as a heat dump. As most have surely?

 

[combo]

are you ppl referring to the internal bypass as the heat sink ?

 

[combo]

Id be surprised if a manufacturer advised conecting the flow/return without at least a small single rad.

 

[Whyme]

Usually a combi can be used as a water heating appliance only provided the ch pipework has a minimum 1m loop and usually they have an internal bypass. as said its not ideal but yes it can be done...

 

[Ray Stafford]

Back when I were a lad (1980s), it was common to replace a Britony water heater with a Chaff Celtic 220 RS combi on summer setting doing just hot water, on the understanding that when the householder had the money, they would add radiators.

 

[albatross]

Back when I were a lad (1980s), it was common to replace a Britony water heater with a Chaff Celtic 220 RS combi on summer setting doing just hot water, on the understanding that when the householder had the money, they would add radiators.

Are you sure it wasn't a few years earlier with a back circulator! ha

 

[stevetheplumber]

im with ray we used to do the same thing usually stuck a little rad in the same room as the boiler or run a loop of 22 out in the general direction it would be going when the rads went in