no filling loop

[kris]

Yeh possibly , the heating may be gravity fed and its the hot water thats pressurised, sounds like thats what it is , , thats just as easy just isolate cold water then drain heating remember to open airing points when draining ,

 

[kevcrane]

Don't know if you got last message, but thank you sooo much

 

[kay-jay]

Either an f and e in the loft or a standard braided hose flexi filling loop connected to a valve with a pressure guage adjacent to the usually red expansion vessel in the cylinder cupboard

 

[kevcrane]

Thank you

 

[kris]

Don't know if you got last message, but thank you sooo much

No never got it kev, but no probs,

 

[kevcrane]

Hi Kris
You were right, theres an f&e tank in the loft. I've put the new radiator in and it's working like a dream, only problem is, half of them aren't working in the newish extension. They've used micro bore in there. Don't know if that's why, I've got all the air out of the system. Don't suppose you have any ideas do you??? Maybe need rebalancing?? Sorry to bother you

 

[stevetheplumber]

i would shut every thing else first see what happens

 

[kevcrane]

Hi Steve
All the rads in the old part of the house????

 

[Steve ski]

shut em all down kev, keep a note of how many turns you used to off on your lock shields on the existing old rads, then go to the radiator which is the last or longest run on the system, slowly open the locksheild bit by bit until you get heat into the rad ( you will probably find this one will be fully open ) then go back to the next on the circuit until all rads are hot ! it can be a complete nightmare but patience and logic is key !! good luck mate !

 

[kay-jay]

I wouldnt worry about balancing at this stage.
I would run heating for a few mins and turn off any rads that get hot. Leave it s few mins then see if any of the others have heated up ( they should because closing tge hot ones is making the circuit smaller and the pump can often then move air pockets) repeat until all of the open rads are hot then uou can open them all and uou should be fine.

 

[kevcrane]

Thanks Steve

 

[kevcrane]

Thank you Kay, heating systems can be a nightmare

 

[kevcrane]

Not sure you got my thank you message, so thank you