The right temperature.

The best tariff.


£166.66 ex. VAT

3 year warranty with lifetime upgrade available

You can save up to £378 on your energy bills with the 4iE.

The 4iE is easy to use and doesn’t require programming. It connects to your WiFi easily, and set-up can be completed with a few simple steps.

Never come home to a cold house, or overpay on your energy bills again.

SmartGeo™ makes sure your home is automatically warm just as you arrive, and running efficiently when you’re away, just like magic.

Always at the right temperature

Simple to set up and easy to use

With the EasySwitch™ automatic tariff switching service you will never overpay on your energy bills again.

Always on the best tariff

Always at the right temperature.

The 4iE can control your heating automatically and reduces your heating usage by up to 25%.

It works by using the location services built into smartphones, as well as learning your routines and the most efficient settings for your home.

So your heating is always at the right temperature, effortlessly. Your home is automatically warm as you arrive, and running efficiently when you’re away. Just like magic.

with SmartGeo™

with EasySwitch™

Always on the best tariff.

The 4iE works in the background to find the best energy deals.

EasySwitch searches the market for better energy tariffs, recommends the best deals, and makes it easy to switch. Saving you on average £210 according to government figures.

EasySwitch can even be set to switch you on to the best tariff automatically, so you’re always getting the best deal, effortlessly.


Never come home to a cold house, or overpay on your energy bills again.

The 4iE doesn’t need programming and connects to your WiFi easily, with simple set-up and installation just like a traditional thermostat.

The large full colour touchscreen is easy to use and the MyHeating app is designed so any adjustments you do want to make to the temperature are quick and simple.

Energy Monitoring

Save up to £378 on your energy bills

Built-in EasySwitch finds the best energy deals and can be set to switch automatically each year, saving on average £210.

The 4iE learns the heat-up and cool down rates of your home to automatically set the most efficient temperatures when you’re away, reducing usage by up to 25%.

Advanced, automatic control

Save up to £378 combined and view usage and cost graphs online and on your smartphone.

Tariff Switching

High quality design & engineering

Premium design, personalised for you.

The 4iE is designed to look great in both modern and traditionally styled homes, with glass effect front faces and bevelled chrome edges to reflect wall colours.

A range of vinyl overlays are available in bold colours and textured metal and wood effects. You can even use a custom photo to complement your wallpaper.

The large colour touchscreen can be customised with different themes and uploadable photo backgrounds. There’s even a 7 day local weather forecast, and traffic alerts built in.

Two ways to control.

Use with any desktop or mobile web browser to manage your account, control your heating, and view your energy usage with no subscription required.

MyHeating by Warmup for iOS and Android

The free MyHeating app works with iOS and Android to give you access to SmartGeo and quick control of your system.

If you don’t want to use SmartGeo or just want to make a quick adjustment, Natural Language Programming is simple to use.

Natural Language Programming

programming that speaks your language.

Works with all underfloor heating systems.

The 4iE can be used with up to 16A electric underfloor heating systems as well as Warmup hydronic heating systems.


The 4iE can control central heating systems using a switch live input. For volt-free or low voltage systems a contactor can be used.

Works with central heating too.

If you're unsure if the 4iE is right for your system, contact our customer support team


High end security with proven technology.

Our system is protected by the same security as online banking and encrypted to the same level as classified intelligence agency files.

Your data is private, including your location.

SmartGeo works without Warmup knowing your location, only how far from home you are, and uses the systems already built into your smartphone.

© 2016 Warmup Plc. All Rights Reserved