• 3iE thermostat set screen 563x316
  • 3iE thermostat energy efficient screen 563x316

The 3iE energy-monitor programmable thermostat provides the following:


- Rapid local heat-up and cool-down completely separate from other zones.

- Ten different set periods per day to get accurate control usage for all rooms.

- Easy and precise over-ride functionality by temperature and time at one button press.

- Floor temperature and air temperature control, either being the dominant choice.

- Self-learning capability for the end user to know when to turn the power on to achieve the desired temperature at the chosen time.


Energy-monitor functionality

Energy-monitor enables rapid learning of what energy provides each level of comfort and how to adapt to suit your requirements.


Following installation and/or occupation and use of the dwelling or building, it will ensure the usability of the heating systems are adequately controlled and managed by enabling end users to act positively in managing their energy usage and costs.



3iE Product and Warranty Registration

Please contact our team to register your 3iE Thermostat


Extended Lifetime Warranty

Please contact our team to purchase an Extended Lifetime Warranty


3 Year Warranty

3 Year Warranty

This product comes with a 3 year warranty. We are confident in the standard of our products

Design around your home

Select a colour below to browse our range of colours, designed to match your home’s décor

White Grape Teal Magenta Green Silver Black

Key Features and Benefits

  • Innovative

    First thermostat with a 2.4” full colour screen and integrated touch technology - patents pending

  • Interactive

    Clear graphical display makes any adjustment quick and easy

  • Recorded energy consumption

    You will know the exact running costs of your underfloor heating

  • Intelligent

    Proportional Adaptive Function precisely activates the system when needed, perfectly balancing comfort with economy

  • Energy efficient

    Unrivalled accurate floor temperature control means no wasted energy - reducing the costs associated with over-heating

  • Active Energy Management™

    First thermostat to come with Active Energy Management™ (AEM™) - saving up to 10% on energy bills

Output relay

16A, 3,600W

Temperature range

 0 / +50 °C

Programming function

10 events and 10 temperatures / day

Sensor type

NTC, 3m long


(H/W/D): 90mm x 113mm x 19mm (flush fit)

Dimensions (H/W/D)

90 X 110 X 30mm

Size of display


Installation depth


IP rating

IP20/IP32 (with optional gasket)

Er-P Class



 EUFH 3ie thermostat approvals


Code Description Excl VAT  Inc VAT
3iE™ PB Piano Black Programmable Thermostat £120.83 £144.99
3iE™ CC  Classic Cream Programmable Thermostat  £120.83 £144.99
3iE™ SG Silver Grey Programmable Thermostat £129.99 £155.99
3iE™ LG Leaf Green Programmable Thermostat £129.99 £155.99
3iE™ MB Madison Blue Programmable Thermostat £129.99 £155.99
3iE™ DP Deep Pink Programmable Thermostat £129.99 £155.99
3iE™ WB Warm Berry Programmable Thermostat £129.99 £155.99
3iE-LTW-CERT 3iE Extended Warranty £24.99 £29.99

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