Underfloor Heating Single Room Control Unit with Grundfos Pump

The perfect plug-and-play solution for adding water underfloor heating to small areas like bathrooms, extensions, conservatories, or any space up to 20m². This compact control unit connects directly to your existing radiator or central heating system for efficient, even warmth with zero major disruption — no extra brackets required.

The integrated Grundfos UPM3 FLEX AS 25-70 130 high-efficiency A-rated circulator pump delivers reliable, noise-free performance and best-in-class energy savings (up to 80% vs conventional pumps, EEI ≤0.20), while the built-in thermostatic mixing valve monitors and auto-regulates flow temperature for safe, optimised comfort without risking floor overheating.

Coverage & Performance

• Up to 20m² at 200mm pipe centres (ideal for standard small rooms).
• Up to 15m² at 150mm pipe centres (for higher heat output needs).
• 3kW heat output for fast warm-up and reliable comfort.

Enjoy precise zoned heating where full-house underfloor isn’t practical or budget-friendly.

Key Features & Benefits

• Grundfos UPM3 FLEX AS 25-70 130 Circulator Pump — Advanced high-efficiency design (A-rated, EEI ≤0.20) with digital PWM control for optimal operation, silent performance, low maintenance, and up to 80% energy reduction.
• 7 Metre Maximum Head — Reliable circulation for typical domestic setups (70 dm nominal), with 1.5″ BSP connections for wide compatibility with manifolds and heating circuits.
• Power Range — 2W minimum to 52W maximum for intelligent, variable-speed efficiency.
• Thermostatic Mixing Valve — Monitors water temperature, auto-blends and regulates flow from your heat source, prevents overheating, and ensures even distribution.
• Versatile Heat Sources — Works seamlessly with oil/gas boilers, wood-burning stoves, solar thermal, ground source heat pumps, air source heat pumps, and other renewables/green energy.
• Complete Unit Components — Includes mixer valve, circulating pump, isolating valves, flow & return connections, and mounting kit — all in a lightweight, compact design that bolts straight onto existing pipework.
• Easy Installation — Simple fit even in tight spaces; saves time and money with direct connection and no extra brackets needed.
• Future-Proof Efficiency — Low running costs, draught-free luxurious warmth, and full support for low-temperature renewable systems.

Smart Temperature & Flow Control

The thermostatic mixing head with monitoring delivers safe, optimised performance:

• Auto-blends and regulates temperature from any hot water source.
• Prevents floor overheating while providing consistent, even heat.
• Ideal for quick single-zone upgrades tied into existing radiator/central heating.