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Uponor Vario S FM Stainless Steel Underfloor Heating Manifold | Multiple Port Sizes

Description

Uponor Vario S FM Stainless Steel Underfloor Heating Manifold

The Uponor Vario S FM Stainless Steel Underfloor Heating Manifold is a premium manifold designed to distribute and balance water flow efficiently throughout wet underfloor heating systems. Manufactured from high-quality stainless steel, it provides long-lasting durability, excellent corrosion resistance and reliable performance for both domestic and commercial installations.

Available in a range of port sizes, the Vario S FM allows you to select the configuration best suited to your project. Each manifold features integrated 0–5 l/min flow meters, enabling precise balancing of every heating circuit for optimum comfort, improved energy efficiency and consistent heat distribution.

Designed for straightforward installation, the manifold includes integrated isolation valves, automatic air vents and fill/drain valves to simplify commissioning and future maintenance. It is fully compatible with Uponor thermal actuators and modern underfloor heating control systems, making it an ideal choice for new installations or replacement manifolds.


Applications

The Uponor Vario S FM manifold is suitable for a wide range of wet underfloor heating installations, including:

  • - New build properties
  • - Home renovations and extensions
  • - Commercial heating systems
  • - Air source heat pump systems
  • - Traditional boiler-fed underfloor heating systems

- Simply select the required port size from the options above to match the number of heating circuits in your underfloor heating system.

Why Choose the Uponor Vario S FM Manifold

Designed with installers in mind, the Uponor Vario S FM provides fast installation, simple commissioning and dependable long-term performance. Individual flow adjustment on each circuit ensures even heat distribution throughout the property, helping maximise the efficiency of your heating system while maintaining consistent comfort.

Whether you're installing a small residential system or a larger multi-zone project, the Uponor Vario S FM delivers the quality and reliability expected from one of the world's leading underfloor heating manufacturers.

Technical Specifications

Technical Specifications

Specification Details
Material Stainless Steel
Application Hydronic Underfloor Heating & Cooling Systems
Available Sizes 2 to 16 Heating Circuits (Ports)
Primary Connection G1"
Heating Circuit Connections G3/4" Eurocone
Flow Meters Integrated 0–5 l/min balancing flow meters with memory ring
Return Manifold Integrated shut-off valves with hand caps
Connection Orientation Left or right-hand primary connection
Loop Pitch 50mm
Header Pitch 215mm
Integrated Components Automatic air vents and fill & drain valves on both flow and return manifolds
Compatible Actuators Uponor 230V (1141676) & 24V (1141677)
Maximum Operating Pressure 6 bar
Maximum Operating Temperature 60°C

Available Port Sizes & Dimensions

Select the required manifold size from the drop down above. The table below shows the overall manifold length and corresponding Uponor product codes.

Ports Overall Length (mm) Current Uponor Code Replaces Code
2 214 1140833 1086538
3 264 1140834 1086539
4 314 1140835 1086540
5 364 1140836 1086541
6 414 1140837 1086542
7 464 1140838 1086543
8 514 1140839 1086544
9 564 1140840 1086545
10 614 1140841 1086546
11 664 1140842 1086547
12 714 1140843 1086548
13 764 1140844 1086564
14 814 1140845 1086565
15 864 1140846 1086566
16 914 1140847 1086567

Need help choosing the correct size? Select a manifold with one port for each underfloor heating circuit (loop) in your system.


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