Features and benefits
![bi-directional flow](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=834&iar=1&w=835&hash=985DE3C40CE243EC921F5E5B6AB1F73B#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/200x200/155255J%20Resize%20Images_200x200px_DR1-07.jpg?h=834&w=835&rv=b0ad55890e1544c19095deb2fe3ac9f1&hash=985DE3C40CE243EC921F5E5B6AB1F73B)
Bi-directional flow
Fit the V2000SX valves in the supply or return of the radiator. Both options are possible
![one valve for 90% of applications](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=834&iar=1&w=834&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/200x200/155255J%20Resize%20Images_200x200px_DR1-05.jpg?h=834&w=834&rv=5e69e45c4bcf4d5da495b5e4f35310a1&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5)
One valve for 90% of applications:
V2000SX is perfect for every installation from new builds to retrofit projects
![exchange concept](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=834&iar=1&w=834&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/200x200/155255J%20Resize%20Images_200x200px_DR1-03.jpg?h=834&w=834&rv=1ef8ea0ce7e640cca1f6a1a182bb8dc5&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5)
Designed with the at concept:
Just the valve insert needs to be replaced, not the complete valve body – for our V2000 valves back to the year 1974!
![10 year waranty](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=834&iar=1&w=834&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/200x200/155255J%20Resize%20Images_200x200px_DR1-01.jpg?h=834&w=834&rv=59cdcda2bedf43508abced1008df6b00&hash=0A8CFF4CBE0C1DCB8848BA8C0C216CD5)
Quality products with extended warranty.
We offer 10 years for the Thera-6 range and 15 years for the V2000SX range*.
![illustration showing thera-6 thermostatic radiator head being attached to v2000sx standard thermostatic valve](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=408&iar=1&w=720&hash=65515C0AA71268EB2B6FF5940C7A54D7#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/thera-6_V2000_720x408px.jpg?h=408&w=720&rv=0a7fb7d24cac45bc8772ac897bdf30d8&hash=65515C0AA71268EB2B6FF5940C7A54D7)
Extended warranty
Built in Europe by a company with over 45 years of manufacturing expertise, we are so confident of the quality of our products that we provide an extended warranty for them.*
![Thera-6](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=408&iar=1&w=720&hash=65515C0AA71268EB2B6FF5940C7A54D7#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/thera-6_720x408px.jpg?h=408&w=720&rv=c6dcd46441214081a45f9def829a9a67&hash=65515C0AA71268EB2B6FF5940C7A54D7)
Thera-6 thermostatic radiator valve head
The Thera-6 universal-use thermostatic radiator head is amazingly compact and beautifully designed.
- Rigorously engineered and tested for durability, making it ideal for residential heating applications
- High control accuracy rating, supporting the highest energy efficiency standards of the new EN 215
- Premium quality materials, with a 10 year extended warranty on the radiator head.*
![V2000SX](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=314&iar=1&w=556&hash=E3DECF3FE7E73B7AF8AF6BEAC99A9C1C#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/v2000sx_standard_thermostatic_valve.png?h=314&w=556&rv=c8f81e737c1643d98267561cb6849815&hash=E3DECF3FE7E73B7AF8AF6BEAC99A9C1C)
V2000SX standard thermostatic valve
The V2000SX thermostatic radiator valve range fits at least 90% of radiator applications, making it ideal for every installation, from new builds to retrofit projects.
- Includes a variety of flow rate presets
- Tested beyond the requirements of applicable European quality standards with a strong spring and Resideo’s proven double o-ring sealing design
- Designed with durability in mind, the V2000SX range has a 15 year extended warranty.*
* The lifetime is 10 years (Thera-6) / 15 years (V2000SX range) from the product manufacturing date. The guarantee is subject to Resideo's detailed warranty policy and terms of sale
![illustration of one red line creating a sketch of a radiator, couch, and lamp. Text reads: Peace of mind for installers and homeowners](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=1440&iar=1&w=2560&hash=053971F7EF211B43AE085F332AC4C0FC#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/thera6_hd.jpg?h=1440&w=2560&rv=be1893ec3e0645dabd8c6c03b8b2c75d&hash=053971F7EF211B43AE085F332AC4C0FC)
Support how you need it
![man writes on notebook with laptop on his lap.](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=1800&iar=1&w=1800&hash=78B548AFCAF0AF5AE950907B02025A64#https://www.resideo.com/gb/en/-/media/Resideo/Landing%20Pages/New%20Now%20Next/NNN_Training_Webinars_1800x1800-min.jpg?h=1800&w=1800&hash=78B548AFCAF0AF5AE950907B02025A64)
Live online training webinars
Learn about thermal balancing. Regulations, standards and guidance with our live webinar-based training.
![two pairs of kids' feet wearing socks](https://www.resideo.com/gb/en/-/media/Resideo%20System/Lazy%20Loading%20Placeholders/p.png?as=1&h=652&iar=1&w=656&hash=12D62C475C8D89EDE042808A9B031818#https://www.resideo.com/gb/en/-/media/EMEA%20Site%20Cluster/Mastersite/Images/thera-6/kid-socks.png?h=652&w=656&rv=5d1bc02bc8184c35bddc4e4572d9defe&hash=12D62C475C8D89EDE042808A9B031818)
Try setting app
Find the right presetting for Honeywell Home valves with just a few clicks. Practical assistance for installation technicians - in the office or at the construction site.