Thermia Atec – The choice of professionals

Thermia Atec: the low-carbon heating system chosen by professionals

Setting a good example

Günter Oldigs is a consultant certified and authorized by a number of different German energy agencies and associations, including BAFA, DENA, DEN e.V. and GIH-Nord e.V. He advises homeowners and builders about the possibilities of energy saving, optimal energy use, environmentally friendly energy carriers and the selection of suitable equipment, systems, building materials and measures.

Hard evidence is hard to ignore: actual performance, measured day by day

Günter Oldigs lives in a single-family house with Angelika and two cats. In September 2014, he decided to improve the energy efficiency of his own home by adding insulation to the upper floor and roof area and changing the heating system.




With Thermia’s Atec air-source heat pump, I can save 2,170 kg CO2 every heating season. This is a 51% reduction compared with my previous heating system. I’m glad that, besides the obvious economic savings, I can personally contribute to creating a greener world." - Günter Oldigs

“In September 2014, I switched from an oil-fired heating system to a Scandinavian air-source heat pump, the Thermia Atec 9 kW. To help promote this highly energy-efficient technology, I decided to publish all performance data on my website. So rather than listening to my arguments and deciding whether or not to believe, potential investors and homeowners can now track the monthly energy consumption and seasonal performance (SCOP) of my own heating system in real time. Hard evidence is hard to ignore.” - Günter Oldigs

Energy consumption for heating purposes dropped to 2,847 kWh and the heat delivered to the house was 9,373 kWh, so 70% comes from thin air and is renewable energy. Originally 4,240 kg, CO2 emissions dropped to 2,070 kg, this is a massive 51% reduction (2,170 kg CO2).

“Today, I have the evidence to show that converting from oil to heat pump technology was an excellent decision. A further big advantage for me is professional. In my role as an energy consultant, I can show my customers the actual performance of the heat pump technology I use in my house. This is far more convincing than any Excel calculation or simulation and represents a strong argument for anyone considering renewing their heating system.”


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