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.

Incl. Vat: £396.00 £330.00
Availability: In stock
SKU
UFH240

20m² Multi-Zone Wet Underfloor Heating Kit

Planning underfloor heating for a compact two-room project or a small open-plan area with separate heating circuits? This 20m² multi-zone wet underfloor heating kit is designed for a traditional screeded water underfloor heating installation, with heating pipe secured to suitable floor insulation before the screed is laid. Rather than sourcing the main components individually, you can choose a kit suited to your target area and plan the pipe circuits around the rooms you want to heat.

Plan heating by room, not just by total square metres. With a correctly designed wet underfloor heating installation, warmth is distributed through the floor, leaving valuable wall space free from radiators. This kit is suitable for trade installers and homeowners working with a competent heating professional.

Why choose this 20m² multi-zone underfloor heating kit?

  • Project-sized wet UFH kit: intended for approximately 20m² of floor area at the appropriate design pipe spacing.
  • Multi-circuit flexibility: plan separate pipe loops for the layout, heat losses and manifold configuration.
  • Designed for screeded floors: heating pipe is clipped to suitable floor insulation and covered with an appropriately specified screed.
  • Comfortable heat distribution: water circulates through pipes embedded in the screed to provide steady warmth.
  • Ideal for suitable new-builds and extensions: or major renovations where the necessary insulation, screed depth and floor build-up can be accommodated.
  • Choice of controls: review the selectable thermostat, wiring centre, actuator and other options on this product page.

Important: Check the exact kit contents, manifold size, pipe quantity and any optional extras shown for this particular product before ordering. The insulation, pipe fixings, screed construction, finished floor and heat source must all be compatible with the system design. Installation and commissioning should be carried out by a suitably qualified person.

What's Included in Your 20m² Wet Underfloor Heating Kit?

Your kit brings together the main components for a traditional screeded underfloor heating installation. The pipework is fixed to suitable insulation using pipe clips before the screed is laid.

Kit Contents

Component Quantity
Grundfos circulation pump and temperature mixing valve unit 1 unit
Novatherm 2-zone Dualix manifold 1 manifold
Novatherm multilayer underfloor heating pipe 100 metres
60mm pipe fixing clips 300 clips
Perimeter edge insulation 50 metres
Pipe connector cores 4
Pipe reaming tool 1

Manifold Fittings Included

The 2-zone manifold assembly is listed with the following fittings:

  • 2 manifold isolating valves
  • 2 temperature gauges
  • Flow meters and lockshields on the manifold ports
  • 2 drain/fill valves with blank caps
  • 2 automatic air vents
  • 2 metal mounting brackets

Thermostats and Optional Controls

Thermostats, wiring centres, actuators and other control accessories may depend on the options selected when ordering. Please review the product configuration before checkout to confirm what is included with your kit.

Before installing: Confirm your pipe spacing, insulation, circuit layout and screed specification with your installer.

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
60mm Pipe Clips

300

 

Pipe Reaming Tool 1
Connector Cores 4
Edge Insulation Roll 50M
   
 

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.