Welcome to Modern Heat, we are the official UK reseller for TESY heating appliances. We offer a wide range of TESY Electric heating products, including Electric Hot Water Cylinders, Electric Wall Mounted Heaters and Electric Air Source Heat Pumps with Combined Hot Water Cylinder.

DELIVERY Unless otherwise stated, all products are in stock and we offer FREE next working day delivery to most postcode areas in the UK, however some postcode areas do attract a small charge. We also offer the option for you to specify a preferred day for delivery. Please see the Delivery Info page for further details.**

WARRANTY AND SUPPORT We offer both pre sales and after sales support and our staff are trained and knowledgeable when it comes to advising you on the correct product for your requirements. Please feel free to call if you have any questions or queries before making a purchase. 0161 439 1400.

All products include a 2 year warranty. Please see the warranty details page in the unlikely event that you require further information concerning the warranty.

PAYMENT We accept a wide range of payment options including all major credit and debit cards, or Klarna and Payl8r Finance if you wish to spread your payments over a period of time.

Electric Water Heaters

  • Energy Efficient Electric Hot Water Cylinders.
  • Modern design and intelligent high-tech solutions.
  • Adapted to work with any type of water for long-term and trouble-free use.
  • Internet control from anywhere in the world via a secure Internet connection (only for models with Internet control)

Electric Wall Heaters

  • Energy saving and reliable with electronic thermostat up to 0.1 ° C (only for series of convectors with electronic control and Internet control).
  • Weekly programmer with Smart function Adaptive start.
  • Child lock or control panel lock.
  • Built-in Wi-Fi module for control over the Internet, for the Cloud series panel convectors.

Air Source Hot Water Cylinders for Domestic Hot Water

A range of Energy efficient, cost saving, Air to Water Heat Pump (Air Source Heat Pump) incorporated into a hot water cylinder, with sizes ranging from 100 litre up to 260 litres of hot water capacity  The TESY AquaThermica is offered in a compact wall mounted version offering 100 litre or 150 litre capacity, or as a larger floor standing version, with or without a heat exchanger. The larger version with exchanger offers the option to incorporate other energy sources, such as a boiler or solar system, to provide additional heat for domestic hot water production. Heat can also be taken from the heat exchanger in order to provide heating to a small radiator circuit or U/F heating circuit. The AquaThermica with a heat exchanger range includes models with volumes of 200 and 260 liters.