No im not 100% sure.I just presumed combis to be more efficient/economic.
My system i have at pres was installed by bg some 20+ years ago & i have to say has given no trouble.Space is a premium in my has ,by the way is a 2 bed semi converted to 3 bed by pulling bathroom downstairs...
Ta for reply.
Ch flow/return 22mm straight swap ok.
With the system it is hot water feed from immersion tank is 22mm.
Dhw from combi out in 15mm.Will it have any effect on pressure/flow connecting to 22 or do i change hw pipe to 15mm completely.
Cheers
Hello new to site.
My question is Can i fit a combi to my existing pipework.
I have a Gloworm boiler with immersion heater that is 25yrs old & looks to be giving up.Also i would like to free up the room taken by this mass of copper & i am also thinking of economy at these times.
By the...