Save up to 35% energy with
low-temperature systems and Jaga heat pump radiators
The supply temperature plays a crucial rule in the efficiency of a heating system. The lower the supply temperature for heating,
the more efficient the system operates. For example, when a heat pump is set to a supply temperature above 55° C, this will always result in efficiency loss.
Heat pumps achieve their highest efficiency at low power consumption, when low supply temperatures are essential.
By reducing the supply temperature of a heat pump from 55° C to 35° C, an efficiency-increase of 25-35% can be achieved, which in turn leads to proportional savings on energy costs.
Our study has examined this, comparing the SCOP of various monobloc heat pumps using the environmentally friendly refrigerant R290 at different system temperatures. The SCOP (Seasonal Coefficient of Performance) is the performance coefficient of a heat pump, measuring energy-efficiency over a realistic annual cycle.

To enable such low system temperatures, specialised heat pump radiators are required that can deliver high output at
water temperatures as low as 35°C. Compared to conventional radiators, they achieve three to four times the output at low
supply temperatures.
Heat pump radiators: Fast, energy-efficient, and versatile benefits
- Extremely energy-efficient, as heating at lower temperatures significantly improves the efficiency of the heat source
(e.g., heat pump). - Extra safe for children’s hands: Jaga radiators never become too hot on the outside, eliminating the risk of burn.
- Much shorter heat-up time compared to underfloor heating and conventional radiators, accelerating actual heat output into the room. During transitional seasons, this provides a key advantage over the slow response time of underfloor heating
(‘too cold at night, too warm during the day’) while also saving energy. - In combination with a heat pump, Jaga heat pump radiators can not only heat but also actively cool. This means you are investing in a climate control system that ensures year-round indoor comfort in your home.
It is proven that low water temperatures are more efficient than high temperatures, reducing energy demand, heating costs, and greenhouse gas emissions. The energy-saving potential of a system depends largely on the precise synchronisation between key components such as the heat generator, heat exchanger, and control technology. A holistic design and careful installation are therefore essential to fully benefit from low-temperature heating systems.
Conclusion: Save up to 35% energy by switching to a low-temperature heating system, such as a heat pump, and optimising your Jaga heat pump radiators for low system temperatures. This is not only better for the environment but also beneficial for your budget. Feel free to contact us if you have any questions or would like expert advice.
*This study analysed energy-efficiency for the Central European climate zone. In other climates, savings of up to 50% may be possible.