We've recently moved into a new house and need to replace 2 TRVs. We've also found that some of the radiators don't get warm. We have a HeatLine C24/C28 (not sure which!) condensing wall mounted combination boiler. Most advice suggests we will eventually have to refill the system with a filling loop but I've looked underneath the boiler and we don't seem to have one of those- just a cold water inlet with a blue valve tap. Any advice for refilling the system would be gratefully received!
Refilling sealed CH system
- Thread starter sperriss
- Start date
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You might find the filler loop in the different place - ours is in the airing cupboard.
On the other hand someone may have removed yours from the system - they are meant to be disconnected when not be used to fill up the system.
Bear in mind you may have to add more inhibitor when you add more water - otherwise the system can get clogged up.
On the other hand someone may have removed yours from the system - they are meant to be disconnected when not be used to fill up the system.
Bear in mind you may have to add more inhibitor when you add more water - otherwise the system can get clogged up.
You will have a filling loop somewhere; the water that is in it at the moment had to come from somewhere.
As the filler is always connected to the cold mains, you could try following this pipe back from the boiler. It should be near the boiler as you have to be able to see the pressure rise in order to avoid over filling. Some boilers have the filler in/under the boiler.
As the filler is always connected to the cold mains, you could try following this pipe back from the boiler. It should be near the boiler as you have to be able to see the pressure rise in order to avoid over filling. Some boilers have the filler in/under the boiler.
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