ADAPT AMONG THE THREE MOST EFFICIENT HEAT PUMPS FOR HOMES WITH RADIATORS

A heat pump does not produce heat; it extracts it from the outdoor air and transfers it into your home. It only uses electricity to run, so its efficiency shows directly on your energy bill.

Floor heating needs water at around 35 °C, while radiators in older homes need up to 55 °C. The higher the temperature, the harder the unit has to work, which is why 55 °C is where it becomes clearest which heat pump is truly efficient. For anyone renovating an older home with no plans to replace the radiators, this is the key figure.

In October 2026, the portal reviewed data published by BAFA, the German Federal Office that checks appliances before approving government incentives for them. The comparison included air-to-water heat pumps designed for single- and two-family homes.

ADAPT ranked among the three most efficient units on the list and took first place among the larger units for homes, ahead of manufacturers that have been on the market for decades. The model listed is ADAPT L, which achieves a seasonal space heating energy efficiency of 175% at 55 °C.

“With its ADAPT series, the Slovenian heat pump manufacturer KRONOTERM is among the most efficient suppliers on the BAFA heat generator portal.” For us, this is a fine confirmation of 50 years of in-house development.

• Suitable for homes with radiators too. ADAPT has proven its efficiency at the temperature that radiators in older homes require, which makes it a good choice for energy renovations as well.
• Data from an official source. The ranking is based on data that manufacturers submit to the German Federal Office to qualify for government incentives.
• A calculation for your home. How much you save depends on insulation, heat emitters and your habits, so we assess every home individually.

Would you like to know how ADAPT would perform in your home? Send us an enquiry and an installation expert near you will prepare a proposal tailored to your home.