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3iE programmable thermostat

3iE Energy-Monitoring Thermostat

The world’s first fully interactive, touch technology, energy-monitor thermostat features an easy-to-use interface, eliminating complicated instruction manuals

Key Features



First thermostat with a 2.4” full colour screen and integrated touch technology – patent protected



Clear graphical display makes any adjustment quick and easy. Choose the display style that suits you best – wide choice of screen themes



Accurate floor temperature control means no wasted energy – reducing the costs associated with over-heating

3iE programmable thermostat in bathroom

Accurate Control for UFH Systems

The 3iE is an easy-tou-use underfloor heating controller that gives you the ability to set up to 10 different heating schedules per day, so you can accurately control usage for all rooms.

The 3iE’s self-learning capability means it can tell you when to turn the power on to achieve the desired temperature at the chosen time and its Proportional Adaptive Function precisely activates the system when needed, perfectly balancing comfort with economy.

3iE programmable thermostat energy monitoring graph

Energy-Monitoring Functionality

Energy-monitoring 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



3 Years Warranty

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

Technical Information

Product Documentation
Technical Specifications
Output relay 16A, 3,600W
Temperature range  0 / +50 °C
Programming function 10 events and 10 temperatures / day
Sensor type NTC, 3m long
Dimensions (H/W/D) mm 90 / 110 / 30
Size of display 2.4”
IP rating IP20/IP32 (with optional gasket)
Er-P Class IV
Approvals EUFH heating mat approvals

Get A Quote

Interested in a Smart Thermostat?

Our range of Smart thermostats work with your Smartphone to give you optimal, cost-effective and energy-efficient heating.

Quoting Tools: instant, accurate, flexible

Warmup offers an extensive range of electric and water floor systems compatible with all floor types, rooms and projects.

Electric Systems

  • ✓ Ideal for zones less than 25m²
  • ✓ Ideal for single rooms
  • ✓ Does not alter floor levels
  • ✓ Great for renovations

Electric Systems Quote
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Water Systems

  • ✓ Ideal for larger zones over 25m²
  • ✓ Rapid auto heat loss calculations
  • ✓ Compatible with existing central heating systems
  • ✓ Great for new-builds

Water Systems Quote & Buy
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Projects Division Consultation

  • ✓ Bespoke heating solutions for new-build projects and larger renovations
  • ✓ Dedicated team to work with you
  • ✓ World-class expertise in R&D, building regulations and energy performance
  • ✓ Detailed system layouts for each stage of the project

Get In Touch with Warmup’s Projects Division
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For areas of 24m2 or more, use our full quoting system
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