Wet Underfloor Heating Kit 20sq/m

Our 20m² Wet Underfloor Heating Kit is the perfect choice for a cost-effective and straightforward way to heat your home. Designed for both DIY users and professionals, this kit can be connected to your existing radiator system or run as a standalone heating solution. It includes everything you need to create an efficient underfloor heating zone, making it ideal for medium-sized rooms or open-plan areas.

Regular Price £468.00 Incl. Vat: Special Price £450.00 £375.00
Availability: In stock
SKU
UFH240

Buy Your Complete Kit Online Today

This complete 20m² kit provides all the components required for a smooth installation and long-lasting, energy-efficient heating performance. Flexible pipe spacings allow you to tailor the system to your project:

  • 15m² @ 150mm spacing – suitable for high heat loss areas
  • 20m² @ 200mm spacing – spacing for primary heating
  • 30m² @ 300mm spacing – spacing for secondary heating

Kit Contents and Key Features:

  • Temperature control and pump unit – ensures efficient heat circulation
  • Novatherm™ 2-zone Dualmix manifold – with isolating valves, flow meters, gauges, drain/fill valves, automatic air vents, and secure fixing brackets
  • Novatherm™ multilayer pipe (100m) – durable, high-performance pipe for reliable heating
  • 60mm pipe clips (x300) – for secure fixing of pipework
  • Edge insulation roll (50m) – helps prevent heat loss at floor perimeters
  • Connector cores (x4) – for secure fittings
  • Digital programmable thermostat – set schedules and maintain precise temperature control
  • Pipe reamer – for quick, leak-proof connections

Contact us for professional adivce on your project!

Next Working Day Delivery

Applies to UK Mainland only. Order before 12:30pm Mon–Fri. Orders placed after 12:30pm Friday will arrive Tuesday. Saturday delivery is available at an extra cost.

Free delivery

UK Mainland orders over £250 (ex VAT). Larger or palletised orders outside UK Mainland may incur additional fees.

Additional Information

Deliveries are fulfilled by third-party couriers. Delivery times are estimates and we are not liable for delays. For detailed information about shipping, view our Shipping and Returns.

 
Item Qty
“A” Rated Grundfos 15/20 Circulation Pump with Mixing Valve 1
Novatherm Multilayer Pipe 100M
Novatherm 2 Zone Dualix Manifold, including: 1
Manifold Isolating Valves 2
Temperature Gauges 2
Lockshields with flow meters on each port
Drain/fill valves with blank cap 2
Automatic air vents 2
Metal fixing brackets 2
Heatmiser Programmable Thermostat 1
Pipe Reaming Tool 1
Connector Cores 4
Edge Insulation Roll 50M
60mm Pipe Clips 300
 

Frequently Asked Questions

Do I need extra insulation with a small water underfloor heating kit?
Yes, extra insulation is needed with a small water underfloor heating kit. Insulation boards or panels can help to reduce heat loss and improve system efficiency, especially in retrofit projects.
Will this 20m² kit be enough to heat my chosen room, or do I need to supplement it?
The 20m² underfloor heating kit can heat up any room with up to 20 square metres of floor area. To ensure optimal performance, it’s best used in spaces with good insulation, if your room is larger, has poor insulation, or features high ceilings, you may need a larger system. We recommend checking your heat loss calculations (U-values, window area, external walls) before installation to confirm adequacy.
Can I install a 20m² underfloor heating kit over an existing tiled or wood floor?
The 20m2 underfloor heating kit is suitable for installation over existing surfaces like tile or wood, if the substrate is structurally sound, level, and well-prepared. However, installing over existing flooring will add to the build height. Make sure door clearances, thresholds, and transitions are checked beforehand and adjust trims or thresholds as needed to accommodate the new floor height.