ProWarm Water Underfloor Heating - High Output

Designed for rooms with high heat loss, such as conservatories, or where underfloor heating needs to work alongside traditional radiators, the ProWarm High Output Water Underfloor Heating Kit offers unmatched heating performance, professional-grade quality, and easy installation – all backed by a lifetime guarantee.

Why Choose a High Output Water Underfloor Heating System?

• Optimised for High Heat Loss Areas – With an impressive output of 125W/m² (based on 200mm pipe spacing), this kit is engineered for spaces where extra heating power is essential.
• Ideal for Conservatories & Large Glazed Areas – Combine underfloor heating with radiators to maintain consistent, energy-efficient warmth throughout the year.
• Tailored to Your Room Size – Each kit is configured to cover a specific area in square metres, making it easy to match the right system to your space.

Uncompromising Quality in Every Component

All ProWarm water underfloor heating kits feature advanced water temperature control for safe, efficient heating. Unlike lower-quality systems, we include only premium materials that meet or exceed industry standards:

• WRAS-Approved Pert-Al-Pert Pipe – Manufactured to strict European standards with a built-in aluminium core that acts as an oxygen barrier to prevent corrosion and extend the life of your system.
• Lifetime Warranty – Invest with confidence knowing your system is backed by our lifetime guarantee.

What’s Included in Your High Output Kit

Each ProWarm High Output Water Underfloor Heating Kit includes professional-grade components for a complete, hassle-free installation:

• Grundfos Temperature or Mixing Unit –
  • UPM3 Single Circuit Constant Temperature Unit
  • UPM3 Pump & Mixing Valve Manifold Unit (for larger areas)
• 2, 3 or 4 Port Stainless Steel Manifold – Factory-assembled with adjustable flow meters, isolation valves, and mounting brackets.
• 16mm ProWarm Pert-Al-Pert Pipe – High-performance pipe designed for durability, flexibility, and superior heat transfer.
• Edge Insulation – Reduces heat loss around room perimeters and allows for natural expansion during heating cycles.
• Essential Installation Tools – Includes pipe re-rounding tool, pipe staples, and pipe cutters for fast, accurate setup.
• Smart Thermostat (Optional) – Add intelligent control to maximise efficiency and comfort (if selected).

Engineered for Demanding Environments

If you're looking for a robust water underfloor heating system that performs even in challenging environments, look no further. ProWarm High Output Kits deliver powerful, reliable, and energy-efficient heating where you need it most.

Trust the experts in water underfloor heating – choose ProWarm for performance, quality, and peace of mind that lasts a lifetime.

This table shows exactly what you'll get in the box based on your chosen kit size.

(1) At any rate above the freezing temperature of the transported fluid.

The ProWarm Water Underfloor Heating Kit is WRAS approved. WRAS approval demonstrates it is of a suitable quality and standard against the Water Supply (Water Fittings) Regulations and Water Supply (Water Fittings) (Scotland) Byelaws, provided it is installed and used in accordance with the installation and requirement notes and any other restrictions within the approval. Any water fitting, which when installed, will carry or receive water from the public mains water supply in the UK, must comply with these regulations. They require that a water fitting should not cause waste, misuse, undue consumption or contamination of the water supply and must be ‘of an appropriate quality and standard’. To learn more about compliance, visit: WRAS approvals.