Partnering opportunity

Smart hot water controller for electric hot water storage heaters.


A Cyprus start-up company has developed and is about to commercialise a cloud-based hot water controller for electric hot water storage heaters (immersion heaters). The device can be easily installed in any electric hot water heater and controlled remotely using a smartphone/web application. The company is seeking manufacturers and installers of immersion heater as well as electricians for commercial agreements with technical assistance.

Partner expertise sought

Not available


Across the world, energy and money is being wasted on heating water that is not being used. This is because most hot water storage tanks do not indicate the temperature of the water inside to their users. As a result, frequently there is not enough hot water when it is needed, or else there is too much hot water when it is not needed. This inconvenience costs homeowners time and money, and contributes to several Terawatt-hours of wasted energy annually within Europe alone. In addition, the lack of precision of traditional thermostats increases the wasted energy. The Cyprus based start-up has been developing the product over the past two years. It has participated in the 2016 National final of Climate Launchpad, the largest green-tech completion worldwide, where it received the 2nd Prize. The idea was also pitched in the European final in Estonia in the same year receiving positive reviews from all judges. Since then, the company has been accepted in Stage 2 & 3 of the Regional Climate-KIC accelerator program and received funding of over €50,000. This led to the incorporation of the company and the product realization. The company has developed a smart thermostat that can be easily retrofitted into any electric hot water heater. The device is made up of two components: a touch-sensitive temperature display which replaces the existing heater switch in the house and the controller with temperature sensor which is placed at the electric hot water heater. No new wiring is required for the device. The installation is very simple but must be performed by a competent electrician. The simple yet intuitive touch display depicts the water temperature and allows the user to switch on/off the immersion heater. Using the purposely-built smartphone/ web app the user can see the exact temperature and operate the immersion heater remotely from anywhere. In addition, it allows full scheduling of the device according to the users needs. The product is now in the first stages of mass production and the company wants to expand in the European wide market. The company is seeking the following partners for commercial agreement with technical assistance: - Manufacturers of water storage heaters to integrate the offered device into their products. - Electricians and installers of immerse heaters and thermostats to install the offered device in new and existing installations. - Wholesalers and retailers of electrical devices to promote and distribute the device in their territory.

Advantages and innovations

The innovative hot water controller requires no additional wiring from the heater switch to the tank for controlling the immersion heater and reading the water temperature in the tank. The installation is very simple and can be fitted in any hot water storage heater utilising electric immersion heaters up to 16A (3.6kW). The user is able to switch on/off and program any schedule using a purpose specific web / smartphone app. The device functions also in the absence of WiFi connectivity.

Development stage

Field tested/evaluated

Intellectual Property Rights (IPR)

Design Rights

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