Thermostatic radiator valves, or TRVs, are designed to automatically shut down and prevent the flow of water through the heating system in warmer weather, so they need to be carefully maintained in the hot summer months.
If TRVs are turned down low when the weather is warmer, a few months of inactivity could lead them to become stuck in the ‘off’ position.
As a result, when the weather cools down again, you might find that radiators accompanied by a stuck TRV will struggle to heat up and might not be able to – a plumber might even be required to fix the issue at an excess cost.
To avoid such a situation, open all your TRVs to full capacity by turning them in a clockwise direction during the warmer summer months.
For further information, take a look at our dedicated blog – Summer Heating & Radiator Tips.