Automatic bypass valves?

[macka09]

Hi all.

Do any of you guys fit automatic bypass valves on a standard combi boiler heating system? Or do you think a rad with no TRV is sufficient?

 

[turnpin]

I think a lot of combi's have built in bypass valve's ......but stand to be corrected...regards Turnpin:8:

 

[Ch4 plumbing]

I think a lot of combi's have built in bypass valve's ......but stand to be corrected...regards Turnpin:8:

Agree with Turnpin, the only time I fit automatic bypass valves with a combi is if I need to zone the heating with 2 ports.

 

[ShaunCorbs]

i normally just use the bathroom rad

 

[townfanjon]

Yep as above ^^^

 

[Ermintrude]

Ideal logic used to require 20% of boiler capacity as a bypass

 

[lame plumber]

I do what the building regs advize one to do

 

[Leo21]

Only iff a two ports involved.