• 80 years of experience
  • ISO 9001-2008 certified
  • Innovative
  • Delivery from stock
  • Direct advice

Winterwarm UK Ltd.
Unit H3, Taylor Business Park
Warrington Road
Risley, Warrington
Cheshire WA3 6BL
T: +44 1925 765799 

Commercial register no. 2231586
VAT no. 483566217

Winterwarm WWH-LT

The WWH-LT are water heaters which are especially designed for lower temperatures (warm and cold) providing a sustainable heating and cooling situation. The source can either be a boiler, heat pump or district heating network. 


Energy saving and a better heat distribution
The WWH-LT range consists of four models which at the common wate temperature of 45°C in- and 35° out going temperatures a capacity  between 8kW and 38 kW. The new models are provided with an EC-fan motor. This means that the electricity consumption is 25% less than with a standard WWH water heater. However, the air volume is about 10% higher so the air distributions is improved.
The heat exchanger is designed to generate an optimal flow of air at low temperatures in heating and/or cooling mode (cooling only in combination with a heat pump).


Cooling in the summer
It is possibile to connect the WWH to a cooling pump. For example: at a water temperature of 7°C the cooling capacity is between 7 and 32 kW. The heaters are as standard provided with a condensate tray to discharge the condensate. 


The WWH-LT is ideally suitable for shops, showrooms but also is production facilities etc.


Air discharge possibilities

  • horizontal or vertical - attention: when also the cooling mode is used the heater cannot blow out vertical because of the condensate discharge
  • with extra louvres
  • 4-way down flow plenum, for built-in prefabricated ceilings
  • 6-way down flow plenum, for built-in prefabricated ceilings

Available capacities: 8 kW - 19 kW - 29 kW - 38 kW  (at 45°/35°C in- / out temperature)


Control by WWH-LT with a simple stepless 230V. room thermostat or a clock thermostat. Also a 0-10V. control is available to adjust the air volume. 


The WWH-LT is already ErP proof for 2021!