The home of underfloor heating!

0800 141 2643

Call us today for the lowest online prices

25m2 Single Zone Kit

We are currently out of stock on that item.

RRP: £686.99

Our Price: £351.99

Free next working
day delivery*

All our prices include VAT & FREE DELIVERY *on all orders over £19.99

Product Details

Product Details

    For those homeowners and tradespeople who wish to install a water underfloor heating system from a reputable manufacturer, our single zone kits are the ideal choice.

    If you want to combine a traditional radiator system with an area of underfloor heating, such as in a living room or work area, our water-based solutions are the perfect option.

    When the pipes are placed 250mm apart, the kit will result in an output of 115W for each square metre. Some of our kits are also designed to produce a higher output than others, so please have a look to see which will be most suitable for your needs.

    However, please note that our water underfloor heating systems will enable you to control the water temperature, while it is advised that you should use caution with any kits that don't have this feature. This manufacturer also utilises quality multi-layered barrier pipes that come with a high specification. This means that the kits are also suitable for use with drinking water installations, as they are WRAS approved. The system's metal components will also be protected from corrosion, due to a layer of aluminium that represents an oxygen barrier. This stops particles from moving through the polymer matrix and prevents rust.

What you get in your kit:

Grundfos Temperature Unit

A rated UPS 2 Grundfos Single Circuit Constant Supply Temperature Unit.


Manual dial thermostat with the option to upgrade to a digital thermostat which comes with a life time warranty.

Multi-layered Barrier Pipe

100 meter pipe for 25m2 kit.

Edging Insulation

  • Pipe Re Rounding Tool
  • Pipe Staples
  • Pipe Cutters



Standard Room Installation Manual

Download Now
  • The water underfloor heating systems that we provide are designed specifically for ease of installation.
  • A full manual has been produced by us to help with installing your kit, which is available for download.


Features Values Testing Methods
Material Crosslinked polyethylene PE-Xb internal layer, internal bonding layer, intermediate aluminium layer, external bonding layer, high density polyethylene HDPE external layer. -
Colour RAL white 9003 -
Dimensions 14÷32 mm -
Application Hot and cold potable water distribution, convector and radiator heating systems, raidant heating and air cooling systems, compressed air distribution systems, industrial installations. -
Fittings Pexal® Brass, Bravopress® and Pexal® Twist -
Minimum operating Temperature(1) -60°C -
Maximum temperature +95°C/+100°C EN ISO 21003-1
Maximum Pressure +10 bar EN ISO 21003-1
Density at 23°C > 0.950 g/cm3 (crosslinked polyethylene) -
Softening temperature 135°C -
Thermal expansion coefficient 0.026 mm/m·K -
Thermal conductivity 0.42÷0.52 W/m·K -
Internal roughness 0.007 mm -
Oxygen permeability 0 mg/l -
UV Resistance Yes, if protected with UV-resistant paint -
Halogen levels Halogen-free -
(1) At any rate above the freezing temperature of the transported fluid.


All our kits come with the Heatmiser DS1, which is our 230v electronic room thermostat, ideal for conventional or combi-boiler systems. This thermostat is used in conjunction with a separate programmer.

Technical Info
  • Power On & Heat On Indication
  • Modern Apperance
  • Easily increase or decrease the required temperature
  • Variable Switching Differential
  • Outputs: Volt free 3A Max
Dimensions 92mm x 92mm x 34mm
Mounting Surface mounting
Load 230v

Digital Thermostat Upgrade

The Heatmiser PRT is our 12v programmable room stat and programmer in one, providing up to 4 different temperatures at different times of the day.

Technical Info

  • Large display
  • Facility to limit use of Up/Down Temp Keys
  • Automatic blue back-light (Turns off after 30 seconds)
  • Heatmiser TouchPad, Netmonitor Compatible
  • °C / °F Selectable
  • Key Locking Facility
  • Frost protection with adjustable temperature setting
  • Easily increase or decrease the required temperature
  • Remote control optional
Dimensions 98mm x 85mm x 13mm
Mounting Flush mounted
Load 230v


As standard we offer FREE NEXT WORKING DAY DELIVERY on all orders over £19.99 to all UK mainland addresses (excluding Channel Islands & Eire ) on all heating products. Delivery outside of mainland UK may be arranged by prior agreement. You will be notified of the carriage amount and will at that point be able to make a decision as to whether you wish to proceed with your order or claim a refund.

Service types available:

Please note: All orders must be placed before 3pm in order to receive the service stated below.

EXPRESS 24 EXPRESS 10 Saturday Delivery
(Standard Next working day up to 7pm) (PRE 10.30AM) (AM Delivery)
FREE £15.00 £30.00

Orders placed before 3pm on any business day (Monday – Friday) excluding Bank Holidays should be delivered on the next business day (Excluding Saturday, unless the carriage is met) anytime up to 7.00pm.

Our standard next working day delivery does not guarantee next day delivery; however every effort is made by us and the courier to achieve this goal.

Orders taken on Friday after 3pm, Saturday or Sunday will be dispatched on Monday (excluding Bank Holidays) for delivery on Tuesday up to 7.00pm.

Orders placed on Friday before 3pm will be dispatched on Friday for delivery on Monday up to 7.00pm unless the Saturday delivery charge is met (This excludes Bank Holidays).

Please note: We rely upon the services of third party couriers and, whilst we endeavor to always deliver in a timely manner, there are unfortunately a few occasions when the couriers fail to deliver on the appointed day. This happens rarely, but because it does occur, albeit occasionally, we cannot be held responsible for the late delivery of an item, or any costs incurred by customers tradesman unable to work, please ensure you have your materials before booking in any trades.

Shipments sent outside the European Union may be subject to import duties and taxes, which may be levied once a shipment reaches your country. For details of Customs charges please consult your own Customs authorities for the latest rates.

Additional charges for customs clearance must be borne by you; unfortunately we have no control over these charges and cannot predict what they may be. We are unable to reimburse any costs incurred regardless of the circumstances.