ProWarm Water Underfloor Heating - Low Profile 18mm - Multi Room

Experience exceptional comfort, energy efficiency, and total room-by-room control with the ProWarm Low Profile 18mm Water Underfloor Heating Multi Room Kit. Designed for multi-zone applications, this premium system allows personalised heating in every room, with thermostat control available for each individual zone.

Each kit is tailored to provide effective coverage of up to 20m² per room/zone, making it the perfect solution for full-home heating across renovations, extensions, or new builds.

Introducing ProWarm LoFlo – The Future of Floor Heating

The ProWarm LoFlo system revolutionises underfloor heating with a slim 18mm low-profile design that can be installed directly over existing subfloors - no need for excavation or disruptive floor raising. This makes it the ideal solution for projects where height is restricted, or where speed and simplicity are essential.

Perfect for Ceramic, Stone & Engineered Wood Floors

The robust LoFlo panels are engineered from high-strength fibrous board, offering a solid, stable base suitable for direct-fixed heavy flooring types like ceramic tiles or engineered wood. The result? Long-lasting performance and superior heat distribution.

Fast Response Times & Efficient Heat Output

With 150mm pipe centres and high-performance 12mm Pex-Al-HDPE pipe, this system delivers quick warm-up times and excellent heat output, outperforming many traditional screed-based underfloor heating systems. Compatible with both conventional boilers and low-temperature renewable heating systems like heat pumps.

Installer-Friendly Design

The LoFlo system features an innovative 'snap-off' edge support, allowing for easy on-site customization. This clever design makes perimeter loop and leader pipe installation faster and more intuitive, saving time and reducing installation complexity.

Peace of Mind Built In

• Lifetime Warranty – Built to last and backed by our industry-leading guarantee.
• WRAS-Approved Pipework – Fully compliant with UK Water Fittings Regulations and Scottish Byelaws.
• Energy Efficient – Room-by-room zoning and low water temperatures mean lower running costs.

What’s Included in Your Multi Room Kit?

Each kit includes high-performance components to ensure optimal operation across multiple zones:

• Grundfos Mixing Unit – A-rated UPM3 manifold pump and mixing valve unit for precise water temperature regulation and efficient heat distribution.
• Thermostats (Optional) – Choose from a range of thermostat options to customise control for each zone.
• Stainless Steel Manifold – Factory pre-assembled with adjustable flow meters and mounting brackets for easy installation and system balancing.
• ProWarm Pex-Al-HDPE Pipe – 12mm oxygen-barrier pipe ensures corrosion resistance, fast heat transfer, and long-lasting reliability.
• ProWarm LoFlo Floor Panels – 18mm low-profile boards provide even heat distribution and secure pipe placement, ideal for tiled or hardwood floors.
• Edging Insulation – Installed around the perimeter of each room to minimise heat loss and accommodate natural expansion.
• Wiring Center & Actuators – Intuitive controls to manage your multi-zone system (please note image is for reference and may vary based on chosen thermostat).
• Essential Tools – Includes pipe cutters and other key accessories to ensure a smooth and accurate installation process.

Why Choose ProWarm?

Whether you’re renovating a period property or installing a new energy-efficient system, ProWarm Low Profile 18mm Water Underfloor Heating Kits offer unbeatable flexibility, performance, and ease of use. Ideal for homeowners, tradespeople, and installers alike - backed by premium quality and trusted support. Upgrade to a smarter, slimmer, and more efficient heating solution - choose ProWarm LoFlo today.

Compare Kits

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

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.