Rads again

bog master

Right, oil fired boiler, outside in what I call a cabinpack, in the grey metal housing. Two rads downstairs with no heat, one has both pipes reasonably warm, the other cold on both flow and return. Third rad not bad, but not hot as others.

Have bled and bled, one rad now nothing comes out, the other water.

Checked the attic, expansion vessel full, so am guessing lack of water in the system. But have not a clue where to find valve or whatever. In the hot press, upstairs there is a red kind of cylinder, bout the size of a 5 gall paint tin,no sign of any gauge.

Any ideas

By the way, the tank in the attic has no visible ballcock

yoshytoshy

Sometimes in rural areas ,people use rainwater to fill their heating systems.
If theres no ballcock on your heating tank in the attic ,then I'd say thats your problem.

Or ,the tank may have been disconnected and is now fed from your mains water.

bog master

yoshytoshy wrote: »

Sometimes in rural areas ,people use rainwater to fill their heating systems.
If theres no ballcock on your heating tank in the attic ,then I'd say thats your problem.

Or ,the tank may have been disconnected and is now fed from your mains water.

Newish house, on mains, heating been grand up till now. No frozen pipes over the cold spell, just day or two of very low pressure which meant water tank emptied a few times.

sullzz

your filling valve should be in your hotpress either a silver flexi pipe or a red gate valve (1/2") .
if you look at the coil on your cylinder (pipe work at side of cylinder) the bottom pipe should have a 1/2" pipe possibly going into your attic , on this pipe there should be the filling valve . if not check your attic on this pipe.
if you have no luck there take the door off the boiler housing and check in around your boiler , it has to be filled from somewhere.
if you could put up some pics of your hotpress it would be great

bog master

sullzz wrote: »

your filling valve should be in your hotpress either a silver flexi pipe or a red gate valve (1/2") .
if you look at the coil on your cylinder (pipe work at side of cylinder) the bottom pipe should have a 1/2" pipe possibly going into your attic , on this pipe there should be the filling valve . if not check your attic on this pipe.
if you have no luck there take the door off the boiler housing and check in around your boiler , it has to be filled from somewhere.
if you could put up some pics of your hotpress it would be great

Thanks, have to run out for a bit,will look and do pics later

bog master

sullzz wrote: »

your filling valve should be in your hotpress either a silver flexi pipe or a red gate valve (1/2") .
if you look at the coil on your cylinder (pipe work at side of cylinder) the bottom pipe should have a 1/2" pipe possibly going into your attic , on this pipe there should be the filling valve . if not check your attic on this pipe.
if you have no luck there take the door off the boiler housing and check in around your boiler , it has to be filled from somewhere.
if you could put up some pics of your hotpress it would be great

Hi All! Sorry for not getting back, but got home late, did FIND the fill valve,"Silver Flexi Pipe" thanks sullzz! But pressure was low so took over an hour to get level up to the outlet. Have all rads sorted bar one double, two bleed valves on it, plenty of water coming out, no sound of air, yet only gets tepid. Any ideas?

And warm thanks to all for replies!!!!

trad

Is your circulation pump working properly? System might be full of water but if pump is working water won't circulate to all the rads.

Outkast_IRE

bog master wrote: »

Hi All! Sorry for not getting back, but got home late, did FIND the fill valve,"Silver Flexi Pipe" thanks sullzz! But pressure was low so took over an hour to get level up to the outlet. Have all rads sorted bar one double, two bleed valves on it, plenty of water coming out, no sound of air, yet only gets tepid. Any ideas?

And warm thanks to all for replies!!!!

Sounds like you might need to balence the system, have you tried turning off the other rads and seeing if it heats up then, if it does then you need to spend some time balencing