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References

Gastherme raus, Gesamtsystem rein

Out with the gas boiler, in with the complete system

An energy retrofit in Tyrol is gradually transitioning the household to renewable energy. The gas furnace, which consumed about 10,000 kWh of gas per year, was completely phased out. Planning and exec…
Drei Ovum-Luftwärmepumpen für 25 Wohnungen

Three Ovum air-source heat pumps for 25 apartments

On Alsterdorfer Straße in Hamburg, three Ovum air-source heat pumps were integrated into the existing heating system of an apartment building with 25 residential units . The scope of work included the…
Zwei Wärmepumpen, eine sichere Versorgung

Two heat pumps, a reliable supply

A cascade of two heat pumps— 17 kW and 20 kW , totaling 37 kW —was installed for a senior living community with office space in northern Germany. The system adjusts output to meet demand and enhances…
Luft-Wasser-Wärmepumpe mit 500-Liter-Cube

Air-to-water heat pump with a 500-liter tank

An Ovum AC312P with a 500-liter CubeTank was installed in a single-family home in Pinneberg. The installation was preceded by heating load calculations and system planning. The foundation for the outd…
Raus aus dem Öl, rein in die Zukunft

Away from Oil, Toward the Future

In Söll, the old oil-fired heating system was replaced with a modern heat pump system—for efficient heating and hygienic hot water. Until now, consumption has been around 2,500 liters of heating oil p…
Von der Gastherme zur Wärmepumpe

From a Gas-Fired Boiler to a Heat Pump

A household in Sistrans replaced its gas boiler with an OVUM AC312P heat pump with a Cube storage tank, receiving approximately 40% in subsidies from the federal and state governments. Reference from…
Heizen mit der eigenen Sonne

Out with oil heating, in with solar power.

In Kiefersfelden, the old oil-fired heating system was completely dismantled and replaced with a modern energy system. At its heart is an air-source heat pump that runs on solar power generated on-sit…
Hohe Effizienz im Neubau

High Efficiency in New Construction

In Niederau (Wildschönau), a new building with approximately 150 m² of living space was constructed in 2024/2025. An Ovum AC312P air-source heat pump was installed. The AC312P installed here was the f…
Nachhaltige Energie für 36 Wohneinheiten

How a residential complex in Innsbruck cut its heating costs by two-thirds.

Heat pumps and photovoltaic systems were installed in a residential building with 36 units in Innsbruck. Distributing the heating capacity across multiple units adapts to demand and increases the reli…
2.000 Liter Öl und 10 Raummeter Holz ersetzt

When five tanks make room for a heat pump.

Until now, the building was heated with 2,000 liters of oil and an additional 10 cubic meters of wood . The new solution: the Ovum AC520P with MIRA Plus Controller. In addition to the technical work,…
Bestandssanierung mit Ovum AC312P

A look inside the boiler room: before and after.

In Schönau (Bavaria), an oil-fired heating system with a 1,800-liter tank was replaced with an Ovum AC312P equipped with M+ controls. First, the tank system was professionally dismantled; then, the he…
1.500 Liter Heizöl gehören der Vergangenheit an

How much oil does a heat pump save per year?

Until now, this building has been heated using about 1,500 liters of oil per year . The oil-fired heating system is being replaced by an Ovum ACP417 with M+ control. The smart control system adjusts t…
Self-Sufficient Energy Supply with a Heat Pump, Solar Panels, and Storage

20,000 kWh of gas replaced by a heat pump, solar panels, and storage.

Until now, this building required about 20,000 kWh of gas per year for heating. Today, an Ovum ACP312 with M+ control and a photovoltaic system provide both heat and electricity. The ACP312 completely…
13,000 kWh of gas replaced: Heat pump in Vomp

From Gas Heating to the AC208P

In Vomp, Ovum AC208P with M+ control is replacing the old gas heating system. Gas consumption had previously been around 13,000 kWh per year. The switch reduces operating costs and CO₂ emissions and p…
3.000-Liter-Tank raus, AC312P rein

Out with the 3,000-liter gas tank, in with the AC312P

A 3,000-liter liquid gas tank had reached the end of its service life. The new plant: AC312P with M+ control, solar integration, and pool integration. Dismantling, disposal, installation, and commissi…
AC417P, Kombispeicher und Sonne

Gas heating is being replaced by a heat pump with a combined tank and solar integration.

An AC417P air-source heat pump provides both heating and hot water. A combined tank buffers the heat, and the solar integration system supports hot water and heating loads. This results in a reduction…
Out with the old, in with the new: Air-source heat pumps and solar power

Why this heat pump uses propane as a refrigerant.

An oil-fired heating system with a tank capacity of approximately 4,000 liters was replaced by an OVUM air-source heat pump using R290 and combined with a photovoltaic system. Fossil fuels are no long…
2.000-Liter-Öltank hat ausgedient

The 2,000-liter oil tank has reached the end of its useful life

In Weer, an OVUM ACP312 with a CUBE700 buffer tank replaced the oil-fired heating system, including its 2,000-liter tank. The air-source heat pump operates quietly and efficiently—designed for existin…
Heating System Renovation in Münster: Out with the Oil-Fired System, In with the Heat Pump

Heat from deep underground instead of heating oil.

In Münster, an oil-fired heating system with an annual consumption of approximately 2,300 liters was completely removed and replaced with a heat pump featuring a deep borehole. The new plant also offe…
8,6 Tonnen CO₂ weniger pro Jahr

Three heating circuits, one heat pump.

In Kematen, an Ovum AC417P air-source heat pump with MIRA Plus Controller replaces approximately 3,000 liters of heating oil per year—which is equivalent to about 8.6 metric tons of CO₂ . The existing…
Heat Pump Success Story in Mils

11,000 kilograms less CO₂ per year in Mils.

In Mils, the existing heating system was replaced with a modern heat pump system. Before-and-after photos from the boiler room and basement show the switch to efficient, renewable heat. Reference from…
Ölheizung raus, Propan-Luftwärmepumpe rein

An existing home in Angerberg is now heated with propane as well.

In an existing home in Angerberg, a propane-air heat pump with a CubeTank has replaced the oil-fired heating system. The switch reduces fossil fuel consumption and efficiently utilizes environmental h…

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