Description

The Vaillant sensoROOM (VRT50/2, part no. 0010038663) is a digital eBUS room thermostat that gives you a clearer interface than the dial-only sensoROOM pure, while keeping the same single-zone modulating control at the core. It’s a step up in display and configurability without the complexity of a full programmable thermostat.

Not sure which Vaillant control you need?

Read our complete plain-English guide before you buy every thermostat, gateway, wiring scenario and compatibility question covered: Vaillant thermostats: which one do you actually need?

How it works

Unlike volt-free thermostats that simply switch a boiler on and off, the sensoROOM VRT50/2 communicates via Vaillant’s eBUS protocol. This means the boiler continuously adjusts its output based on what the thermostat is asking for modulating its flame rather than firing at full output and cutting off. The result is a more stable room temperature, fewer on/off cycles, and lower gas bills. This is why Vaillant recommend their own controls rather than third-party alternatives: fitting a Nest or Hive on volt-free wiring discards the modulating capability you paid for in the boiler.

Key features

• eBUS load compensating control full boiler modulation, Boiler Plus compliant
• Digital display showing room temperature and set point
• Single zone suited to most standard combi boiler installations
• Wired eBUS connection to boiler
• Add myVAILLANT connect (VR940f) to enable app scheduling, energy dashboard, Alexa and HomeKit
• Compatible with Vaillant ecoTEC plus, ecoTEC pro, ecoFIT pure, ecoFIT sustain

Who is this for?

The sensoROOM VRT50/2 suits homeowners who want a cleaner digital readout than the pure dial version, but where the boiler’s internal timer or the myVAILLANT app is handling the scheduling. It’s also a solid choice for rental properties where you want eBUS efficiency without handing tenants a complicated interface.

Compatibility

Requires a Vaillant eBUS boiler. For eBUS boilers installed before 2018, a VRA42 adaptor may be needed. Not compatible with non-Vaillant boilers or volt-free wiring this control is designed specifically to run on the eBUS two-wire connection.