I have had a problem with my oil ired central heating system mainly
the radiators. Most of my radiators in the house are only hot at the
top, i have tried bleeding and bleeding again, turning all radiators
off then turning one by one on and this doesnt seem to work any ideas?

wrote in message
oups.com...
I have had a problem with my oil ired central heating system mainly
the radiators. Most of my radiators in the house are only hot at the
top, i have tried bleeding and bleeding again, turning all radiators
off then turning one by one on and this doesnt seem to work any ideas?


I have a drain off valve fitted to all my radiators, so that when and if the
rads only get hot at the top, I can shut off the valves at each side, open
drain off valve and drain some water off then open valves again. This seems
to work ok for me.
--
the_constructor

In article .com,
writes:
I have had a problem with my oil ired central heating system mainly
the radiators. Most of my radiators in the house are only hot at the
top, i have tried bleeding and bleeding again, turning all radiators
off then turning one by one on and this doesnt seem to work any ideas?

Sounds like there's not enough water flow rate. If they're all doing
this, I might suspect the pump.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

In article ,
(Andrew Gabriel) writes:
In article .com,
writes:
I have had a problem with my oil ired central heating system mainly
the radiators. Most of my radiators in the house are only hot at the
top, i have tried bleeding and bleeding again, turning all radiators
off then turning one by one on and this doesnt seem to work any ideas?

Sounds like there's not enough water flow rate. If they're all doing
this, I might suspect the pump.

Second thought -- radiators could be silted up with sludge.

If the former, the radiator inlet pipe will be hot and the outlet pipe cold.
If the latter, both radiator pipes will be hot.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]