Honeywell Evohome

Here at Plumb Arena, we are very pleased to announce the arrival of the brand new Honeywell colour evohome multi-zone system and smart phone app.

We are also pleased to announce that following on from the success of the original evohome grey scale, range of products and due to increased demand and interest we have now launched the new Honeywell evohome section on our website. This offers the ability to order the full range of the new Honeywell evohome products direct from Plumb Arena.

Rest assured as an approved Honeywell evohome distributor, we guarantee to be one of the most comprehensive and competitive UK stockists of the new evohome. This is based on the fact we have sizable evohome stock consignment orders in place with Honeywell. So be one of the first to enjoy the benefits and savings offered by this fantastic system and order yours today - CLICK HERE


What is evohome?

Evohome is a sophisticated heating system that ensures you can create and individually control up to 12 heating zones in domestic properties. evohome will also control domestic hot water.

With evohome, you are in charge. It makes managing your home heating simple, and could save you money on your energy bill too.

  • More comfort – you can easily control the temperature in any room or zone in your home, all from the comfort of your armchair.
  • More control – forget the old days when you had to get home to switch the heating on – with evohome you can do it from your smartphone.
  • Energy savings – If you have a system that allows you to control where and when you heat your home, you are bound to make a difference to your energy bills.

    evohome energy savings

    evohome is suitable for any home with a hydronic (wet) central heating system. Zoning solutions can be designed for even the simplest of property layouts. evohome is ideal when looking to control temperatures in larger properties such as: luxury apartments; large family homes; homes with business use; multiple occupancy apartments and light commercial spaces such as doctors surgeries and small offices.

    evohome allows the installation of multiple temperature sensing devices around the property without altering existing pipework, disrupting décor or damaging fixtures and fittings. With touchscreen control, the user can quickly gain control of exactly where and when the property should be heated. Remote access is provided via a tablet or smart phone. Wireless Radiator Controllers provide an easy way of installing heating zones without draining down or disturbing pipes or décor.

    evohome really is the brain of the heating system.

    It makes sense to only heat the parts of your home that you’re actually using.

    With evohome you can create smart zones in your home – maybe all of the bedrooms, or the kitchen and dining room. So you can be comfortable in the rooms that you’re using, and turn the heat down in the ones that you’re not.

    evohome smart zones

    evohome controller

    honeywell evohome controller The multi-zone evohome controller (ATP921G2080) controls the time and temperature of up to 12 heating zones plus a domestic hot water supply if required. Each zone has independent time and temperature control.

    It has a backlit colour LCD screen. The unit can either be wall mounted with an external power supply or table mounted on the table stand. This is powered by a 13amp power cable. The evohome controller can be removed from the stand for easy programming for up to 2 hours before returning to the stand for charging.

    The colour of the surround can be changed to either black or silver. A choice of idle screens, analogue or digital clock displays and a choice of day or night mode increases the aesthetic properties of the most visible part of the evohome system. When controlling the heating system the evohome controller has a number of features that make operation easy.

    The evohome controller can act as a room thermostat on its own. Zone names can be input to match the actual property and the zones can be controlled as multi-room or as single-room zones. Zones can be configured to give individual local override of a room or rooms within the zone.

    The programming in the unit is split between in-use and installation sections with a wide variety of control choices for the property owner. There is a guided scheduling wizard for the property owner to help them set up time and temperature profiles in each zone and a guided configuration facility for installers.

    The screen will show energy efficiency messages to the homeowner as each zone’s temperature will be colour coded to show potential over or under set point temperatures.

    There are a number of quick actions available to make it easy to change the heating requirements for a short period:


    • Day Off mode changes the schedule for all the zones to a pre-set day (change a week to a weekend day) 
    • The Heating Off button will turn all the zones off unless the frost protection temperature level is reached 

    The evohome controller provides access for the installer to fully control the heating system. It is suitable for radiators, hydronic under floor and a mixture of both types of heating. Cycle rates, minimum on times and fail safe parameters can be set.

    OpenTherm® capability is built-in to work with OpenTherm® boilers (not hot water systems). Boilers can be controlled by either a boiler relay or an OpenTherm® bridge. You can programme a temperature offset for the evohome controller screen when used as a temperature sensor in its own right.

    Hot water cylinder overrun and temperature offset levels can be programmed as can the hot water temperature itself. You can carry out a wireless Radio Frequency (RF) check using the evohome controller screen. Wireless binding of the system components is carried out via the touchscreen and additional sensors can be easily bound in post application if the zoning requirements change.

    In-built optimisation features such as ‘delayed start’ and ‘optimum stop’ allow evohome to intelligently optimise start and stop times. A learning TPI algorithm ensures each zone adapts to the weather and the seasons.

    evohome controls

    evohome consists of a number of quality components manufactured by the UK’s leading manufacturer of home heating controls.

    Radiator controllers

    evohome_radiator_controller The radiator controllers use two-way communication with the evohome controller to ensure that commands are received and valves opened while maintaining boiler interlock.

    Attractively designed

    These slim, ergonomically-designed radiator controllers will fit on most standard TRV bodies. They are battery powered with a two-year battery life and a battery low reminder visible on both the radiator controller screen and the evohome controller screen.

    The flip-up screen is backlit and can be positioned so that it can be easily viewed or folded away flat.

    Full of features

    The backlit LCD screen displays the zone name, and local set point temperature. The local set point temperature can easily be overridden by turning the dial at the top of the radiator controller. Override temperatures can be set in half degree increments and are effective until the next scheduled temperature change. There is an open window feature that recognises sudden temperature drop and shuts off the local radiator.

    The zone temperature changes made at either the evohome controller’s screen or via the remote app will change in real time on the screen on the radiator controller.

    Simple to install

    These provide the optimum solution for installers when considering installing heating zones as there are no additional zone valves required which makes installation a lot quicker and cleaner. With existing TRV bodies already in place there is no need to drain down the system and they will fit on most compact radiators.

    They are easily bound into the system using the guided configuration feature in the evohome controller; binding confirmation is displayed on the screen. Controllers are available either individually (HR92UK) or as a pack of 4. (HR924UK)

    Smartphone or tablet app

    evohome smartphone app The smartphone or tablet app that enables remote control of the evohome system will be available for download from the iTunes Store and the Google Play store .


    You can also buy additional screen covers that allow the screen surround to be either silver or black, the set of covers also comes with a replacement white cover to ensure that any superficial damage to the surround can easily be replaced. You can buy a replacement evohome controller table stand and also obtain a wall mounting kit. Individual evohome components will also be available as spares.

    Wireless room thermostat

    Where there is a requirement to use a wireless room thermostat as a temperature sensor, Honeywell’s DT92 wireless room thermostat can be included into the evohome system.

    Easy to set up with two way wireless communication (30m range) and a signal strength indicator. Simple to operate with up and down button individual zone temperature override.

    5 to 35°C set point range offers a wide range of comfort levels. Can be wall mounted or free standing to ensure best possible positioning.

    Wireless cylinder thermostat

    Control domestic hot water via the evohome controller screen by installing an externally-mounted wireless cylinder thermostat onto the hot water cylinder; Sensors are provided for vented and unvented cylinders.

    Honeywell’s externally-mounted wireless cylinder thermostat is a combination of a temperature sensor that is mounted against the metal of the hot water cylinder and a wireless transceiver that communicates water temperature to the evotouch controller. The transceiver unit is battery powered.

    Wireless relay box

    The remote relay box is wired into either a motorised zone valve or the boiler and provides the wireless interface between these devices and the evohome system. The relay box requires a permanent 230V~ supply.

    Remote access gateway

    To enable the evohome system to be controlled remotely by either a wifi-enabled tablet or smartphone, a remote access gateway needs to be connected to the internet network within the property.

    LED lights are provided on the gateway for feedback during binding and operation. This is achieved by connecting the supplied ethernet cable into the remote access gateway and a spare ethernet port on the home broadband router.

    The remote access gateway is powered by a supplied 13 amp power supply and there is one button binding of the gateway to the evohome system via the evohome controller.

    Once bound, the homeowner is then able to visit the total connect website to register their evohome system, uniquely identify their evohome remote access gateway (MAC ID & CRC code) and receive instructions on how to download the smartphone or tablet app that suits their Apple or Android system.

    Under floor heating controller

    By controlling the hydronic under floor heating via the Honeywell under floor heating controller, the time and temperature of the under floor heating can be achieved via the evohome controller screen.

    The under floor heating controller provides for up to 5 zones of under floor heating and the optional extension controls a further 3 zones. It operates on the same 868 MHz frequency as the rest of the evohome components and has an internal antenna.