If someone can help on this it would be very much appreciated. I have a bedroom 4x4m walls 2.6m high with a single radiator from the seventies and TRV valve at max. The room never really gets warm, I would say slightly cool you can keep you hand on it for about 20 secs before it is to hot. Also downstairs below the bedroom is the same size room (dining room) but this had a double radiator with a TRV as well at max. This radiator gets ALMOST as hot but you can keep your hand on this one. I bled both rads and I believe the one downstairs may have sludge in it. The water that drains off is clear and not black. I also suffer from bad condensation on the bedroom and some in the room below. The radiators are on north facing walls (2 outside walls) and are below the bay windows. So my question is:
1. Will I benefit from new rads above and below, as they are more efficient and they can draw more air through them as apposed to the 70's versions. This should make the room warmer.
2. If the rooms are warmer they can hold more moister in the air and so there should be less condensation on the windows.
3. the rads are 1600 x 600 high one double (dining room) and one single (bedroom)
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