The Vaillant VRT 350 Programmable Room Thermostat (0020124475) is a wired heating control designed for compatible Vaillant ecoTEC boilers. It monitors room temperature and adjusts boiler operation to help maintain a comfortable indoor environment while supporting efficient heating management.
Featuring a blue backlit display, two push buttons and a rotary control knob, the VRT 350 makes it straightforward to manage your heating schedule. Its programmable functions include three independent time settings, a holiday set-back function, a calendar function and automatic summer/winter changeover.
Wired Thermostat
Programmable Heating
Vaillant ecoTEC Compatible
1-Year Warranty
At a Glance
Product TypeProgrammable Room Thermostat
ConnectivityWired
Temperature Range5–30°C
DisplayBlue Backlit Display
ColourWhite
Warranty1 Year
Applications & Compatibility
The Vaillant VRT 350 is designed for use with compatible Vaillant ecoTEC boilers, providing programmable control over your home's heating schedule and room temperature.
- Suitable for compatible Vaillant ecoTEC boiler installations.
- Provides wired room temperature control.
- Supports scheduled heating through three independent time settings.
- Includes a holiday set-back function for managing heating settings when away.
Compatibility note: Additional controls are required when using this thermostat with Vaillant System and Open Vent boilers. Check the boiler's compatibility and installation instructions before purchase.
Key Specifications
| Brand |
Vaillant |
| Product Name |
VRT 350 Programmable Room Thermostat |
| Range |
VRT 350 |
| Thermostat Type |
Wired Programmable Thermostat |
| Boiler Compatibility |
Vaillant ecoTEC Boilers |
| Connectivity |
Wired |
| Temperature Range |
5–30°C |
| Display |
Blue Backlit Display |
| Colour |
White |
| Programmable |
Yes |
| Time Settings |
3 Independent Settings |
| Warranty |
1 Year |
| Dimensions (W × H × D) |
147 × 115 × 50 mm |
| Manufacturer Stock Code |
0020124475 |
| Manufacturer Part Number (MPN) |
0020124475 |
| EAN |
4024074602423 |
| Product Code |
PN117946 |
| Category |
Heating Controls |
| Sub-Category |
Thermostats |
Key Features & Benefits
Blue Backlit Display
Provides a clear, illuminated display for viewing thermostat settings.
Simple Controls
Two push buttons and one rotary knob make everyday heating adjustments straightforward.
Programmable Heating
Three independent time settings help you organise heating around your daily routine.
Holiday Set-Back
Allows a reduced heating setting to be used during periods away from home.
Calendar Function
Includes a calendar function to support heating schedule management.
Seasonal Changeover
Automatic summer/winter changeover helps adapt heating control to seasonal requirements.
Advanced Override
An advanced override setting provides additional flexibility when changing scheduled heating operation.
Room Temperature Monitoring
Monitors room temperature and adapts boiler operation to help maintain the desired indoor temperature.
What's Included?
- Vaillant VRT 350 Programmable Room Thermostat – 0020124475.
Who Is This Product For?
The Vaillant VRT 350 is suitable for homeowners, heating engineers and installers looking for a wired programmable thermostat for a compatible Vaillant ecoTEC boiler. It is particularly useful for households that want scheduled heating, adjustable room temperature and a holiday set-back function.
Installation & Setup
- Confirm compatibility with the existing Vaillant boiler before installation.
- Check the manufacturer's installation instructions and wiring requirements.
- Set the required room temperature and configure the available time settings after installation.
- Use a suitably qualified heating professional to complete installation and verify correct operation where required.
Frequently Asked Questions
1. Is the Vaillant VRT 350 a wired or wireless thermostat?
The VRT 350 model 0020124475 is a wired programmable room thermostat.
2. Which boilers is the VRT 350 compatible with?
It is listed as compatible with Vaillant ecoTEC boilers. Additional controls are required for System and Open Vent boiler installations, so check the manufacturer's compatibility guidance.
3. What temperature range does this thermostat support?
The specified temperature range is 5–30°C.
4. Does the Vaillant VRT 350 have a backlit display?
Yes. It features a blue backlit display.
5. Can I programme heating times?
Yes. The thermostat is programmable and provides three independent time settings.
6. Does it include a holiday function?
Yes. It has a holiday set-back function to help manage heating settings when you are away.
7. What is the warranty period?
The supplied product information lists a 1-year warranty.
Shop the Vaillant VRT 350 Programmable Room Thermostat
Manage your heating schedule with wired programmable control designed for compatible Vaillant ecoTEC boilers.
Order the Vaillant VRT 350 (0020124475) for your heating control requirements.
