apples24

iTrader: (1)

moved into new house few months ago heating system works fine but its a lot colder upstairs, just seems to take ages for them to warm up upstairs???

OllyK

Have you bled the rads recently? Any air will tend to find its way to the upstairs rads.

Also check the valves (both ends if appropriate) on the rad are at least partially open (they may not be fully open and don't necessarily need to be if your system has been balanced). If non of that works, you may need to get a heating engineer to check your pump out

apples24

iTrader: (1)

well when moved in a couple of rads were switched off so i went round and opened them all, not sure if we have a bleed key will have to look

OllyK

I'd look at bleeding. Do they never get really hot? Heat just at the top or bottom of the rad?

apples24

iTrader: (1)

more of a case of taking ages to get hot, you can really feel the heat hit you when walk downstairs

apples24

iTrader: (1)

ok just bled all upstairs rads turned em a tad heard air coming out lasted for a good 10 15 secs then water, same on each rad, they did feel cooler than the downstairs ones, wonder if that sorts it, would be nice

alcazar

iTrader: (2)

You could try balancing the system yourself. I did mine, and here's how:

Remove all lockshield valve covers and fully close all downstairs valves, (you may need a spanner to do this, an adjustable one works).

Open the upstairs ones fully, while opening those downstairs only half a turn or so.

Check if this has any effect. If the downstairs rads are now too cool, open the ones you need warmer another half turn.

HTH,

Alcazar

ALi-B

iTrader: (1)

Just spent the last half hour fiddling with my TRVs on our central heating...they were sticking shut.

If you have TRVs (thermostatic radiator valves) and they've been turned off for a long time it could be the valves are stuck shut. It's just a case of unscrewing and removing the valve head (should only be hand tight) which will give access to the base of the valve. Just press the valve pin in and out a few times with the back end of a screw driver or something and work it until it no longer sticks. Sometimes they do stick down solid, so you need a pair of pliers to pull the pin up (not too hard though ).

Vegescoob

Do you mean brand new or new to you house?
If brand new get builder in to sort and register your complaint in case there are design/installation problems.
I've seen some poor installations.
Also bear in mind that design temperatures for bedrooms are usually lower than for living rooms. Stupid to my mind. You can turn down but not up if rads ain't got capacity.
If you have to keep bleeding air it's also a sign of a poorly designed system.
There should be an automatic bleed valve or air separator but I've seen installations without either.