MIRA is a control platform with a vertical touchscreen whose user interface is designed like a smartphone.
Intuitively designed and easy to use, MIRA serves as the brain of OVUM Heat Pumps and ensures highly efficient energy management. By automatically linking the Heat Pump and the PV Plant, the system always uses self-generated electricity precisely when it can be used most efficiently. A predictive weather app further optimizes heating operations based on local weather forecasts to strategically store thermal energy at the right time. The system can also be controlled via cell phone, tablet, or PC. MIRA thus transforms the Heat Pump into a proactive, future-proof component for the modern home.
The entire status of the plant at a glance
The main screen shows in real time what’s currently happening in the system: how much electricity the sun or the battery is supplying, how much is being drawn from the grid, and how much is flowing into the house, the Heat Pump, or the environment. A simple home diagram makes these energy flows easy to understand at a glance, even without any technical background. Brief status messages—such as an active vacation mode or increased PV operation—are immediately visible without having to search for them.
Depending on the configuration, this section displays the current battery status, the output of the Heat Pump and PV Plant, and the home’s total energy consumption. It also shows the heating, cooling, and hot water systems along with their current temperatures and operating modes—just one click away from the detailed views. This allows you to assess the status of the entire plant in seconds—whether on the Heat Pump’s display or on your smartphone while on the go.
MIRA plans the next day before it begins
Through a weather service, MIRA knows the forecast for a given location hours before the weather changes. If the sun rises at 7 a.m., the Controller already knows during the night that it will be a good day for PV and prepares the Plant accordingly.
If a cold snap is forecast for the evening, MIRA begins preheating in the afternoon, at a time when the Heat Pump operates most efficiently. You can customize the settings to determine how many hours in advance to plan for heating and the cloud cover threshold at which a day is still considered “sunny.”
We don’t give away solar power for free
MIRA detects excess PV power in real time and converts it into heat with watt-level precision—via the OVUM PV Watch (smart meter) or the manufacturer-independent SunSpec protocol. If a cloud rolls in and production drops, the Heat Pump immediately reduces its output accordingly.
If a battery storage system is also available, the Heat Pump automatically starts in PV mode as soon as the battery is 100% charged and continues to run until the desired setpoint is reached. This conserves the PV tank for other loads, while the Heat Pump runs precisely when free energy is actually available.
For a long time, the Seasonal Performance Factor (SPF) was the key measure of a Heat Pump’s efficiency. However, with photovoltaics, battery storage, and weather forecasts, what matters today is not only how efficiently a Heat Pump operates, but also when it runs. That is why MIRA also displays the self-sufficiency rate.
MIRA determines when energy is used most effectively.
MIRA takes into account weather forecasts, available PV power, the battery’s charge level, and the Heat Pump’s efficiency. In the future, dynamic electricity rates will also be factored in. The desired level of home comfort always remains the guiding principle.
The goal: to keep operating costs as low as possible by delivering the right performance at the right time.
Efficiency reaches its full potential at the right time.
An efficient Heat Pump is essential for low operating costs. However, it is crucial to take advantage of its efficiency when conditions are optimal. To achieve this, MIRA takes into account weather forecasts, available PV power, the battery’s state of charge, and other influencing factors. This ensures that the Heat Pump not only runs efficiently but also operates precisely when the kilowatt-hour generated provides the greatest benefit.
Self-sufficiency makes the results visible.
Self-sufficiency shows how much of the electricity needed for heating, cooling, and hot water was generated on-site and how much electricity was drawn from the grid. The higher the self-sufficiency, the less grid electricity is needed.
The MIRA statistics app displays this value directly—for example, the system shown here has a heat self-sufficiency rate of 87%.
MIRA tracks excess PV power and battery charge levels in real time and automatically adjusts the Heat Pump’s output to match the available energy. This ensures that the home’s solar power is used efficiently and conserves the battery’s charge.
MIRA uses precise real-time data to create a predictive heating schedule. Rather than simply reacting, the system proactively adjusts heating operations based on upcoming weather conditions.
All system data—such as temperatures, operating states, and switching cycles—are recorded in full and presented in clear graphs. This enables precise efficiency monitoring and provides a solid data foundation for remote maintenance.
Just like a smartphone, MIRA receives automatic updates over the Internet without the need for an on-site technician. This ensures that the system remains up to date with the latest technology at all times.
The optional Modbus expansion allows MIRA to be flexibly integrated into an existing building automation system. This enables the Heat Pump to integrate seamlessly into existing building services systems.
MIRA provides detailed operational and status information that enables targeted remote analysis. This allows many questions and Errors to be resolved directly without the need for an on-site service visit.
In general, Heat Pumps operate most efficiently at low flow temperatures, such as those required by underfloor heating systems. However, OVUM Heat Pumps have been proven to achieve high efficiency even when used with radiators—see the real-world example showing gas savings of approximately 24,000 kWh per year. MIRA allows for the independent control of up to 8 heating circuits, including a combination of underfloor heating and radiators.
Yes. The MIRA operating system is as intuitive as a smartphone and can be controlled from anywhere using a cell phone, tablet, or PC. The weather-based schedule proactively plans heating operations based on real-time weather data; up to 8 heating circuits can be controlled individually; and over-the-air updates automatically keep the system up to date.
Yes, this combination is particularly worthwhile. MIRA tracks your solar power production in real time and continuously adjusts the Heat Pump’s output—down to the watt—to match the surplus energy. Instead of feeding electricity into the grid, you use it for heating, hot water, or cooling. The connection is manufacturer-independent via OVUM PV Watch or the Sunspec protocol, and a battery storage system is also intelligently integrated.
Thanks to the MIRA+ Controller, data such as temperatures, operating hours, and statistics can be conveniently retrieved remotely. Through over-the-air updates, the Controller is always up to date with the latest technology, making it continuously better and more efficient.
Thanks to our extensive network of partners, we offer maximum availability and first-class service. Our carefully selected partner companies ensure prompt assistance, a local presence and expert support – so you can always rely on consistent quality and personalised advice.
