Lockable Manual TRV
You may want to put a lockable manual TRV into a public area where you want the radiator to come on whenever the boiler or that heating zone of the property heats up.
These are popular with landlords that want to put them into hallways and ensuites etc. The landlord may choose to not put a Wireless Radiator Valve in this room because they do not want to use the occupancy detection or a managed schedule for this area of the property, they are happy for it to just come on to a low heat whenever the boiler is running.
You can purchase these from plumbing merchants.
Options for Lockable TRVs include:
- Caleffi Altecnic ECOCAL (Lockable TRV)
- 200425 (15mm) / 200420 (10mm)
- Tutorial Video:
- E.g. https://www.cityplumbing.co.uk/p/altecnic-ecocal-angled-body-trv-white-head-10mm-200420-ltc/p/576737
- Danfoss Aveo
015G4040 (Danfoss RA)
- E.g. https://www.bes.co.uk/danfoss-aveo-tamperproof-thermostatic-sensor-head-26470/
- BOSS Supreme Plus
- 442149 | BTRV15LS (15mm)
- https://www.cityplumbing.co.uk/p/plumbright-supreme-plus-trv-and-lockshield-pack-15mm-653011/p/442149
- Note: If the pin is not in the box, contact the distributor to receive them.
Links correct as of May 2025