The world's largest supplier of underfloor heating

ProWarm™ High Output Water Underfloor Heating Kit

ProWarm™ High Output Water Underfloor Heating Kit

RRP: £1,342.79£467.99

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ProWarm™ Water Underfloor Heating Systems are the ideal choice for homeowners and tradesmen wishing to install a Premium Branded water underfloor heating kit.

ProWarm™ High Output - Water Underfloor Heating Single room kits are ideal for combining one area of water underfloor heating in a high heat loss area (eg. conservatory) with a standard radiator system. Each kit is designed to cover an area in square meters when the pipe is spaced at 200mm apart. This spacing provides an output of 125w per square meter. If you require a lower output please choose a standard output kit.

Please Note : ProWarm™ Water Underfloor Heating kits feature water temperature control, beware of systems without this facility. ProWarm™ only use high quality European Standard Pex-Al-HDPE pipe. The aluminium layer acts as an oxygen barrier, preventing the oxygen diffusion through the polymer matrix, which stops corrosion of the metal components in the system. Visit for more details.

ProWarm™ Water Underfloor Heating Kit Components:

Below are examples of all products which could comprise your ProWarm™ Water Underfloor Heating Kit. You can find out exactly what you will get in the box using our handy Kit Content Comparison Table below.

  • Grundfos Temperature Unit

    Grundfos Temperature Unit

    A rated UPS 2 Grundfos Single Circuit Constant Supply Temperature Unit

  • Grundfos Mixing Unit

    Grundfos Temperature Unit

    A rated UPS 2 Grundfos Manifold Pump/Mixing Valve Unit

  • 2,3 or 4 Port Manifold

    4 Port Manifold

    Stainless steel manifold with adjustable flow meter. Factory assembled on fixing bracket.

  • Manual thermostat

    Manual thermostat

    For a small additional fee you can upgrade your thermostat to a digital, programmable, wireless or touchscreen one.

  • ProWarm™ European Standard Pex-Al-HDPE pipe

    ProWarm™ European Standard Pex-Al-HDPE pipe

    16mm (outside) diameter Pex-Al-HDPE pipe

  • Tools


    Pipe Re Rounding Tool, Pipe Staples and Pipe Cutters

  • Edging Insulation

    Edging Insulation

    Edge Insulation is to be used around the edge of the room in order to minimise unwanted heat loss and allow for expansion.

Kit Content Comparison Table

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

Kit Size (m2)1012141618202224304050607080
Single Circuit Pump      
Manifold Pump + Mixer        
Manual Thermostat
Manifold Ports        223344
Pipe Length (m)5060708090100110120150200250300350400
Edging Insulation
Pipe re-rounding tool
Pipe staples
Pipe cutters
Nuts and olives        
Kit Size (m2)10121416182022
Temperature Unit
Manifold Pump + Mixer       
Manual Thermostat
Manifold Ports       
Pipe Length (m)5060708090100110
Edging Insulation
Pipe re-rounding tool
Pipe staples
Pipe cutters
Nuts and olives       
Kit Size (m2)24304050607080
Temperature Unit      
Manifold Pump + Mixer 
Manual Thermostat
Manifold Ports 223344
Pipe Length (m)120150200250300350400
Edging Insulation
Pipe re-rounding tool
Pipe staples
Pipe cutters
Nuts and olives 
FeaturesValuesTesting Methods
MaterialCrosslinked polyethylene PE-Xb internal layer, internal bonding layer, intermediate aluminium layer, external bonding layer, high density polyethylene HDPE external layer.-
ColourRAL white 9003-
Dimensions14÷32 mm-
ApplicationHot and cold potable water distribution, convector and radiator heating systems, raidant heating and air cooling systems, compressed air distribution systems, industrial installations.-
FittingsPexal® Brass, Bravopress® and Pexal® Twist-
Minimum operating Temperature(1) -60°C-
Maximum temperature+95°C/+100°CEN ISO 21003-1
Maximum Pressure+10 barEN ISO 21003-1
Density at 23°C> 0.950 g/cm3 (crosslinked polyethylene)-
Softening temperature135°C-
Thermal expansion coefficient0.026 mm/m·K-
Thermal conductivity0.42÷0.52 W/m·K-
Internal roughness0.007 mm-
Oxygen permeability0 mg/l-
UV ResistanceYes, if protected with UV-resistant paint-
Halogen levelsHalogen-free-
(1) At any rate above the freezing temperature of the transported fluid.
NameProduct CodePrice
ProWarm™ High Output - 10m21350£467.99
ProWarm™ High Output - 12m21351£481.99
ProWarm™ High Output - 14m21352£499.00
ProWarm™ High Output - 16m21353£511.99
ProWarm™ High Output - 18m21354£526.00
ProWarm™ High Output - 20m21355£542.99
ProWarm™ High Output - 22m21356£554.99
ProWarm™ High Output - 24m21357£569.99
ProWarm™ High Output - 30m21358£775.00
ProWarm™ High Output - 40m21359£848.99
ProWarm™ High Output - 50m21360£983.99
ProWarm™ High Output - 60m21361£1,058.99
ProWarm™ High Output - 70m21362£1,171.00
ProWarm™ High Output - 80m21363£1,244.99

Delivery options

At The Underfloor Heating Store, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

We're proud to offer a range of delivery options to suit you, including free delivery on all of our orders or next working day delivery for a fixed price of £4.99.

Our delivery options

  • 2-3 Working Days (3-5 working days on wet room and energy efficiency products)
  • FREE
  • Next Working Day
  • £4.99 (order before 4pm, Monday to Friday)
  • Next Working Day Before 10.30am
  • £14.99 (order before 4pm, Monday to Friday)
  • Saturday Delivery
  • £29.99 (order before 4pm on Friday)