rads are hotter upstairs than downstairs

Stoner

I've a three bedroom house the rads are hopping upstairs but downstairs they don't get as hot, and its noticeable in the heat of the house.

I'm told there some adjusting to to on each rad, close the valves a little on the upstairs ones and open them a little on the downstairs ones.

is there a good way to go about this r is this the right way to go at all?

thank you

kay 9

Wind down the lockshields on the rads upstairs a little and open downstairs full bore. It will take a minor tweaking after that though to adjust each rad so that it's heating the same as others.

Buford T Justice

kay 9 wrote: »

Wind down the lockshields on the rads upstairs a little and open downstairs full bore. It will take a minor tweaking after that though to adjust each rad so that it's heating the same as others.

I wouldn't open the bottom ones full bore, as it'll run the risk of only heating upstairs then

Stoner

Fingers McGee wrote: »

I wouldn't open the bottom ones full bore, as it'll run the risk of only heating upstairs then

OK I started this and then looked at this thread, I checked three of the five lockshields on the rads downstairs and they were already opened fully. So is this the fix or the cause of the problem?

GopErthike

Fingers McGee wrote: »

I wouldn't open the bottom ones full bore, as it'll run the risk of only heating upstairs then

I doubt it.


Check your pump speed, turn it up a notch if you can.
Turn off all the rads upstairs for an hour or so, make sure the throttle on the coil is turned almost off.
My guess is each rad is dropped down individually and air is caught in the pipework above each.

Stoner

GopErthike wrote: »

I doubt it.


Check your pump speed, turn it up a notch if you can.
Turn off all the rads upstairs for an hour or so, make sure the throttle on the coil is turned almost off.
My guess is each rad is dropped down individually and air is caught in the pipework above each.

thank you, I'll check the pump speed, but I've not idea what the throttle on the coil is.

roc1980

try turnig off all the rads upstairs to push the heat downstairs then open
the ones upstairs

Buford T Justice

I don't see why the second lockshield valve should be open the whole way on the rads downsrairs. Perhaps half way only, as the water could be flowing through the rads too quickly.

You can have the standard valves open, the ones that can turned bu hand and the other ones about half way open, maybe less.

GopErthike

Fingers McGee wrote: »

I don't see why the second lockshield valve should be open the whole way on the rads downsrairs. Perhaps half way only, as the water could be flowing through the rads too quickly.

You can have the standard valves open, the ones that can turned bu hand and the other ones about half way open, maybe less.

If it was going through the rads too quickly, they would still get hot.

mad m

Check this website out..

http://www.diydoctor.org.uk/projects/balancingcentralheatingsystems.htm

The trottle on the coil is probably a gate valve which is open fully and means when you have the heating on the Cylinder will rob the heat from the rads, if you close the gate valve and then crank it open a quarter turn this will stop this....

mad m

GopErthike wrote: »

If it was going through the rads too quickly, they would still get hot.

Yes they would ,but only the top half of the radiator will probably feel hot.

GopErthike

mad m wrote: »

Yes they would ,but only the top half of the radiator will probably feel hot.

The heat will rise to the rads upstairs easily, you need the pump to force it back downstairs. It is perfectly fine to have a lockshield open fully if its required.

Buford T Justice

GopErthike wrote: »

The heat will rise to the rads upstairs easily, you need the pump to force it back downstairs. It is perfectly fine to have a lockshield open fully if its required.

If its required yes, but I've never had the second lockshield fully open on any systems I've worked on. I have a 3 bed semi, and did the heating myself. All my rads are open at about half a turn to a turn. Possibly the rad in the bathroom is half way, but no more than that