JIS Valve Set - Streamline Thermostatic Valves

The energy saving  JIS Valve Set - Streamline Thermostatic is a bi-directional valve which sits neatly within the towel rail dimensions. This pair of valves is suitable for use with pipework from the WALL and is available in polished and satin finishes.

Please note:

Streamline Thermostatic Valves are not suitable for dual fuel applications.

All JIS valves come with a 5 year guarantee.

What are BTUs?


British Thermal Units' or BTUs are the units in which radiator outputs are measured. By calculating the required BTUs needed to heat a room, you are able to ensure that you select radiators which provide sufficient heat to keep you comfortably in the cosy middle ground between shivery and sweltering.


Every radiator on our website has a BTU rating which is listed on our product pages alongside other product details. It is worth noting that, it is possible to combine radiator outputs to achieve a room’s BTU level. For that reason, many rooms have more than one radiator.



How do I calculate the BTUs needed for my room?


Factors such as the type of room, its dimensions and glazing are used to calculate required BTUs however it is always advisable to enlist the advice of a certified plumber if you are in any doubt.



Please enter your information below:
Room Length
Room Width
Room Height
Type of Room
Any North Facing Walls?
Patio doors or French windows?
Double Glazed Windows?
Required BTUs
Required Watts



JIS Valve Set - Streamline Thermostatic Valves

  • Availability: 200
  • Starting From £129.55

Available Options

Our price match policy applies to this product, call us on 01282 611172
Free Mainland UK delivery with this product
Manufacturer guarantee on this product

Tags: JIS, Valves