Climate-Caring Energy Solutions
Yes – heat can be produced without combustion and
yes – this can be done with zero emissions and low cost.
Modular AmbiHeat® heat pump plants are changing the world.

Waste heat recovery | UPM Korkeakoski sawmill switches to heat pump technology

Energy self-sufficiency | Heat pump plants increase much-needed energy self-sufficiency and bring cost benefits

Energy ecosystem | A heat pump plant turns the carbon footprint of textile fibre production negative

Energy ecosystem | Kiilto and Lempäälän Lämpö start an energy ecosystem - remarkable reduction of emissions

Lahti Energy | A world-class heat pump plant will utilize heat from municipal wastewater

Orion | Calefa won the DecarbIndustry Award

Kingspan | The Kingspan factory is heated with waste heat instead of oil
Since 2013, Calefa has delivered about 200 energy systems which utilize waste heat or ambient energy. With these systems, by Dec. 2022 our customers have saved:
Recycling energy brings impressive results to industrial companies
Industrial companies have huge potential to use excess heat in their own processes, in heating their properties, and by selling heat to the district heating networks.
For industrial companies, Calefa implements overall solutions that utilize industrial waste heat and ambient energy.
We carry out the systems as turnkey deliveries and always make sure that the system functions properly.
Our solutions ensure that our customers get remarkable energy savings by utilizing waste heat and ambient energy.
With the new system, the needed heating and cooling can be produced minimizing cost and CO2 emissions.
AmbiHeat heat pump plant makes it possible to utilize ambient energy sources in addition to industrial waste heat.
Retrofit solutions are designed for energy production, boosting production, and improving the conditions. They are tailored to fit the existing facilities.
Calmari heat exchanger recovers heat from dryers and transfers it to heat incoming air. E.g. in laundries, the need for purchased energy can be cut in half.

AmbiHeat is a zero-emission heat pump plant using energy from the surroundings
Air - Geothermal - Waterbodies - Industrial waste heat - Solar
AmbiHeat® heat pump plant produces energy to the district heating network and industrial needs from local energy sources fully without CO2 emissions.
100% Finnish work, the heat pump plants are manufactured in factory conditions and then attached to the system on the site.
There are eight standard sizes of the AmbiHeat® heat pump plants, in the power range 350 kW – 10 MW. AmbiHeat® is suited for the production of heating and cooling for large properties as well as for cities.
Download AmbiHeat®-brochure

Retrofit - recycling systems for industrial waste heat
Improved profitability and lower emissions by recycling energy
We implement turnkey solutions for industrial companies, where waste heat from production processes is upgraded for reuse. At the same time, cooling is produced completely emission-free.
In addition to recycling energy, we are often able to boost production and/or improve working conditions. Industrial processes are part of our know-how.
Recycling energy is usually the most effective way for an industrial company to reduce its CO2 emissions. It is also very profitable. For the systems we have delivered, the return of investment (ROI) is typically between 20 and 100%.
Enormous savings and emission reductions
The energy recycling systems delivered by Calefa improve profitability while cutting CO2 emissions.

Forefront and clean energy production
Zero-emission energy with world leading heat pump technology
Calefa implements innovative solutions for energy companies for energy production and improving energy efficiency.
As heat sources for the heat pump plant, the following can be used: outdoor air, geothermal, heat from waterbodies, solar, and industrial waste heat.
We are there to help in creating energy cooperation and ecosystems.
Calefa offers remote monitoring and comprehensive lifecycle services for the entire system.
AmbiHeat heat pump plant makes it possible to produce energy to district heating networks from local, clean energy sources without CO2 emissions.
The plant is outstanding for the production of heating and cooling.
Retrofit solutions are designed for energy production and improving energy efficiency. They are tailored to fit the existing facilities.

AmbiHeat is a zero-emission heat pump plant using energy from the surroundings
Air - Geothermal - Waterbodies - Industrial waste heat - Solar
AmbiHeat® heat pump plant produces energy to the district heating network and industrial needs from local energy sources fully without CO2 emissions.
100% Finnish work, the heat pump plants are manufactured in factory conditions and then attached to the system on the site.
There are eight standard sizes of the AmbiHeat® heat pump plants, in the power range 350 kW – 10 MW. AmbiHeat® is suited for the production of heating and cooling for large properties as well as for cities.
Download AmbiHeat®-brochure

Retrofit - recycling systems for industrial waste heat
Improved profitability and lower emissions
by recycling energy
We implement turnkey solutions for industrial companies, where waste heat from production processes is upgraded for reuse. At the same time, cooling is produced completely emission-free.
In addition to recycling energy, we are often able to boost production and/or improve working conditions. Industrial processes are part of our know-how.
Recycling energy is usually the most effective way for an industrial company to reduce its CO2 emissions. It is also very profitable. For the systems we have delivered, the return of investment (ROI) is typically between 20 and 100%.
Enormous savings and emission reductions
The energy recycling systems delivered by Calefa improve profitability while cutting CO2 emissions.

Energy production for large properties
at competitive price
AmbiHeat produces heating and cooling without CO2 emissions
Energy self-sufficiency makes the prediction of energy prices more secure. With a heat pump plant, energy can be produced from clean, ambient sources with good efficiency.
We implement energy systems from start to finish as turnkey deliveries. We make sure that the system works for its entire lifetime by remote monitoring.
AmbiHeat heat pump plant offers an excellent alternative to produce energy from local sources.
The plant is perfect for the production of emission-free heating and cooling.

AmbiHeat is a zero-emission heat pump plant using energy from the surroundings
Air - Geothermal - Waterbodies - Industrial waste heat - Solar
AmbiHeat® heat pump plant produces energy to the district heating network and industrial needs from local energy sources fully without CO2 emissions.
100% Finnish work, the heat pump plants are manufactured in factory conditions and then attached to the system on the site.
There are eight standard sizes of the AmbiHeat® heat pump plants, in the power range 350 kW – 10 MW. AmbiHeat® is suited for the production of heating and cooling for large properties as well as for cities.