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Zehnder Thermostatic Dual Fuel Valve Set 21 Chrome

Zehnder Thermostatic Dual Fuel Valve Set 21 Chrome

Regular price £217.42
Regular price Sale price £217.42
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BTU Calculator

About BTU

A BTU, or British Thermal Unit, is a unit of energy commonly used in the field of thermodynamics and heating, ventilation, and air conditioning (HVAC) systems. It's a measure of the amount of heat energy required to raise the temperature of one pound of water by one degree Fahrenheit at a constant pressure. This unit is widely used in the United States and some other countries for measuring the heating or cooling capacity of various systems, including furnaces, air conditioners, and heaters.

Room Type

What type of room are you heating? This is helpful to know roughly how much heat will be lost to the surroundings.

Room Dimensions

The larger the room, the more radiators you need to heat it. You can measure this in either feet or meters.


Extra Information

Any additional information about the room that may change how much heating is required.

Pipework – From the Wall
Control - Thermostatic
Valve Type – Dual Fuel/Left Hand Flow
Finish - Chrome
Suitable for Dual Energy - Yes


Default Title (VALVE-SET-21-CR) 27652486103140
Delta 50 Watts:
Delta 50 BTU:

Thermostatic, dual fuel, left handed flow valve set. Chrome finish. Suitable for pipework from the wall.

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