In 1993, our owner and founder, Peter Krimbacher, began developing heat pumps.
State-of-the-art technology for a worry-free future.

AirCube
- maximum efficiency
- Extremely quiet operation
- timeless design

Cubic
- Easy indoor installation
- patented stackability
- Modular. Simple. Flexible.

Cube Storage
- System memory with 9 functions
- The Perfect Complement to a Heat Pump
- All of this in just 1 square meter
Innovation.
MIRA Operating System
MIRA is OVUM’s intelligent operating system, which connects all components into a well-designed energy system. It automatically analyzes, optimizes, and controls the flow of energy—for maximum efficiency and a simple, intuitive user experience.

Reasons to Choose OVUM.
Our vision:
We’re making sustainable heating quieter, smarter, and more efficient.
Our Mission:
We set the standard for heat pump systems that use natural refrigerants. Our decades of experience as developers, manufacturers, and users are reflected in our well-designed solutions for air, ground, and water, making high-performance technology easy to use.
In 2022, we developed the AirCube, the first air-source heat pump with a SCOP of over 6, tested in accordance with EN 14825 at the independent Buchs Testing Center.
With the CUBIC, we have developed the first modular, stackable brine heat pump designed for easy indoor installation. Using just 150 grams of propane per module, it does not require a gas detection system or forced ventilation.
The Cube storage unit combines nine functions in a single device—all within a footprint of just 1 m².
Smart Controller
MIRA takes weather forecasts and PV output into account and heats the home when costs are lowest. Smart and forward-thinking.
Made in Austria
Every OVUM heat pump is manufactured in Kirchbichl, Tyrol—from the initial design through to delivery.
New Construction & Renovation
OVUM air-source heat pumps can reach a flow temperature of up to 70 degrees, making them ideal not only for new construction but especially for retrofits.
MIRA Home App
In development:
OVUM’s Efficiency Pilot will help reduce energy costs even further starting in 2027. It intelligently connects the entire building without requiring any additional components. A heat usage schedule becomes an Efficiency Pilot for your entire home.
The Highest Standards of Quality
Every heat pump is carefully inspected before shipment to ensure long-lasting, trouble-free operation. In addition, we use only high-quality materials to ensure the longest possible service life.
One boiler room, one point of contact
The heat pump, storage system, and smart Controller—all designed to work together—come from a single manufacturer and are carefully installed by an OVUM specialist partner.
OVUM Plants Installed in Germany, Austria, the Netherlands, Belgium, and Switzerland
Authorized partners plan, install, and maintain OVUM heat pumps.
References.
Things to Know.
Product documentation is available in the download section for each product on ovum.at. You can also request documentation directly by emailing office@ovum.at.
You can reach OVUM by phone at +43 5332 81238, by email at office@ovum.at, or through ovum.at. We will do our best to respond as quickly as possible.
An OVUM heat pump uses free environmental heat—from the outside air (AirCube) or from sources such as the ground (CUBIC)—and uses a small amount of electricity to raise it to the temperature required for heating and hot water. This process generates up to 6 kWh of heat from 1 kWh of electricity (SCOP 6.02, tested by the independent testing institute WPZ Buchs, Switzerland, 2022). The natural refrigerant R290 (propane) is used, and the system is controlled by the intelligent MIRA operating system.
Your data will be processed in accordance with the GDPR—solely for the purpose of handling your inquiry—and will not be disclosed to third parties without your consent. For more details, please see the Privacy Policy on ovum.at.
The OVUM portfolio covers a very wide range: from 2 kW for well-insulated single-family homes to 160 kW in a cascade configuration for large-scale projects. Therefore, there is no fixed minimum heating load—the key factor is a professional heating load calculation, which your expert partner will perform for you.

