50%
Up to 50% reduction in installation time
CubeTank
Compact. Well-designed. High-quality.
The Smart Energy Center in 1 m²
© AI-Generated
Boiler room, 1 m²
This all-in-one energy center is much more than just a standard combined tank. The innovative system combines all the heating system’s technology into a single, elegant housing and replaces the classic tangle of pipes in the basement. The result: maximum efficiency and perfectly coordinated components that take up less than one square meter of floor space.
Paired with an OVUM Heat Pump, it’s an unbeatable team.
9 functions—
—in a 1 m² footprint
Pre-installed at the factory for quick and easy installation in the boiler room.
Hygienic Fresh Water SystemNo stagnant hot water, no Legionella bacteria
Hot Water Storage TankSpacious design for maximum comfort
MIRA DisplaySmart Control of the Heat Pump
Cooling functionCan be used with both active and passive cooling thanks to a hydraulic separator
Storing Excess Solar PowerStoring Solar Power Smartly as Thermal Energy
Heating circuit, including pump pre-installed at the factory
Buffer storage tankto avoid timing issues
Heating element6 kW backup heating element for emergency operation
Thermal Safe CoverPatented insulation to prevent unnecessary heat loss
MIRA Control & PV Optimization
The intelligent MIRA+ Controller operates the Heat Pump efficiently and conveniently. Excess solar power is detected with watt-level precision and utilized optimally.
Hot Water Storage Tank & Fresh water system
Spacious combined tank with a capacity of 480 or 680 liters. The integrated fresh water system prevents hot water from sitting in the tank and reduces the risk of Legionella.
Heating & Cooling
The first heating circuit, including the pump, is installed at the factory. In addition, thanks to a hydraulic separator, the system enables active and passive cooling for maximum living comfort.
Patented Thermal housing
Thanks to the patented Thermotresor cover, all hydraulic components are optimally protected against heat loss. This reduces standby losses by up to 50%.
Reduced installation time
The prefabricated OVUM CubeTank storage system reduces installation costs for OVUM authorized partners and electricians by up to 50%, saving them money.
Elegant and timeless design
The well-thought-out design ensures a tidy appearance in the boiler room and blends perfectly into a variety of settings.
500L or 700L
Product Variants
Cube 500
- Storage capacity: 480 liters
- Dimensions: W 800 mm x D 1130 mm x H 1940 mm
- Weight: 170 kg
Cube 700
- Storage capacity: 680 liters
- Dimensions: W 930 mm x D 1330 mm x H 1940 mm
- Weight: 180 kg
Highlights of the CubeTank
All Features
9
Functions in a Storage System
50%
Up to a 50% reduction in standby losses
Fresh water system
The integrated fresh water system heats drinking water only when it is actually needed. This prevents hot drinking water from being stored in the tank for extended periods of time, thereby reducing the risk of Legionella growth. This ensures hygienic hot water production.
Reduced installation time
With the CubeTank, the key hydraulic components are already preassembled and calibrated to work together. This significantly shortens installation time while also reducing potential sources of error during installation. Faster installation and Commissioning save labor time and thus also reduce installation costs.
Intelligent Controller
The CubeTank is controlled via the smart MIRA+ Controller. The intuitive user interface is designed like a smartphone and makes the entire plant easy to control. MIRA not only controls the CubeTank and the Heat Pump, but also takes weather forecasts and the output of the PV Plant into account. This ensures that energy is used proactively and as cost-effectively as possible.
The perfect complement to CubeTank
The Right Heat Pump
When a Heat Pump and a tank become a system.
Whether it’s AirCube or CUBIC: When combined with the CubeTank, the result is a seamlessly integrated heating system. The MIRA+ Controller intelligently integrates the Heat Pump, hot water production, buffer storage, cooling, and utilization of excess PV power. This ensures that all components work together seamlessly, allowing energy to be used efficiently and proactively.
Questions & Answers
Yes. OVUM Heat Pumps are all-in-one systems for heating, cooling, and hot water. The CUBIC and CubeTank storage units support both active and passive cooling—with the CubeTank, the switchover is fully automatic via integrated shut-off valves.
Generally not: The CubeTank already has a built-in buffer storage function. It optimizes the Heat Pump’s operating times and perfectly decouples heat generation from the heating circuit—gently on the system and efficiently.
The hygienic fresh water system in the CubeTank heats the domestic water only at the exact moment the faucet is turned on. There is no standing hot water in the tank—which significantly reduces the risk of Legionella. Fresh, clean, and safe.
Up to 19.3 kWh of heat. The CubeTank is available in two sizes: the Cube 500 with a storage capacity of 480 liters and the Cube 700 with a storage capacity of 680 liters. Both operate with distinct temperature stratification—hot water at the top, cooler water at the bottom—and thus provide consistently comfortable hot water temperatures.
The practical benefit: Instead of feeding excess PV electricity into the grid for just a few cents, you can store it as heat and use it in the evening. The plant draws exactly the amount of power that’s currently available—even if it’s only a few hundred watts, depending on the type of heat pump.
The value of 19.3 kWh applies to the Cube 700 when PV mode is enabled in ECO hot water mode.
Very little. The CubeTank combines 9 functions in just 1 m² of floor space. The outdoor AirCube measures 113 × 80 × 100 cm (2–8 kW) or 158 × 80 × 100 cm (3–20 kW), depending on the power level, and stands out for its low profile. Thanks to just 150 g of R290 per module, the CUBIC can be installed inside a building without requiring additional safety measures.
You don’t need a traditional boiler room. The CubeTank combines storage, hydraulics, and a controller in a footprint of about 1 m²—that’s less space than a gas boiler with a separate water heater takes up. Thanks to its very small amount of refrigerant, the CUBIC requires no additional safety measures for indoor installation. It can therefore be installed “in standard utility or auxiliary rooms without any special structural requirements.” Thanks to its low profile, the ACP series offers great flexibility in installation. Please note the safety clearances that must be maintained due to the use of R290 refrigerant.
The Thermal housing is a casing that insulates and protects both the storage tank and all hydraulic components in the Ovum CubeTank. Thanks to the Thermal housing, standby losses are reduced by up to 50%, since most of the heating pipes are already well insulated.