Can't say I've seen that as much but wouldn't be surprised. The biggest issue with them is space heating, they are seriously bad at heating anything beyond a 3 ft radius due to the way they work.
How to unstick stuck recessed (slot head) lock shield?
- Thread starter Flipjango
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Don't go any harder then, otherwise you could have a problem, was it the installer that set them that way, if so I'd get them back to sort them out.
Honestly, with a sealed system, once you have let some pressure out (either by draining half a bucket of water out or even by a rad bleed screw), you have a vacuum and as long as you can use an adjustable spanner, you can change a valve in seconds without losing much water at all. Once you’ve changed the valves, it’s just a matter of topping up the system and possibly bleeding a few rads.
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We have trv’s on all the rads. But the system still needs balancing as two rads are barely getting any heat but we still want all the rads fully hot so turning down the trv’s wouldn’t solve the problem.
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All rads should get equal heat until the TRVs shut down neighbouring rads.
The issue isn't balancing, your isselue seems to be the plumbing.
Are these two rads tailed off the existing circuit by any chance?
"Hardly any heat" seems odd. They should get exactly the same as everywhere else.
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