Simplify heat pump planning – with LiDAR scan and standard-compliant design
Plan and install heat pumps using a single software. autarc covers the entire planning process – from building capture via LiDAR scan, through the heat load calculation according to MCS, and up to the heating system design according to VDI 4645.

What is the autarc planning module for heat pumps?
The autarc planning module is a software platform for complete heat pump design in existing buildings. It integrates building assessment, heat load calculation, heating surface design, heat pump sizing, and hydraulic balancing in a single application. This allows you to digitize the planning process from initial assessment to the final design report.
As seen in





What features does heat pump planning include?

Cooling Load Calculations
With autarc, you can quickly perform cooling load calculations according to VDI 2078, in a standard-compliant manner. The software captures all relevant parameters with the LiDAR scan and calculates solar, transmission, and internal load components. Your results are provided as a detailed report. The intuitive operation saves valuable time and ensures precise results for every project.

Why does heat pump planning take so long in many businesses?
In most craft businesses, planning starts with a tape measure. Building data is manually collected, room dimensions are transferred to Excel spreadsheets, and heating loads are calculated in separate software. For hydraulic balancing, another tool is needed, and for heat pump sizing, often an external service provider. Every system change costs time, and every manual transfer introduces errors.
The result: A complete design for a single-family home often takes several days with conventional methods. For example, a heating load calculation at Daume Gruppe using CAD software took up to two days – just for the calculation, without building data acquisition and design.

Why do many heat pump projects fail due to improper design?
Heat pump projects often fail due to improper design because many businesses lack the tools to calculate heat load, assess heating surfaces, and perform sizing in a single, standards-compliant process. Without calculations based on DIN EN 12831 and VDI 4645, heat pumps are incorrectly sized – oversized units constantly cycle, while undersized ones fail to reach the desired room temperature. Moreover, without correct hydraulic balancing according to Procedure B, no funding is available.
How does heat pump planning work with autarc?
Capture building data
The LiDAR scan automatically captures room geometries using an iPhone or iPad. A single-family home can be fully measured in a maximum of 15 minutes. The floor plan editor allows for corrections directly within the 3D model.
Calculate heating load
The heating load calculation determines the heat demand for each room according to MCS. U-values can be set as a lump sum, via a calculator, or manually. The standard-compliant report is generated automatically.
Design heating surfaces
The radiator recognition identifies existing radiators using AI. The heating surface design checks whether the existing surfaces are sufficient for heat pump operation and calculates replacements if necessary.
Size the heat pump
The heating system design selects the appropriate device according to VDI 4645, determines the bivalence point, and configures buffer tanks and domestic hot water preparation. The installation site simulation displays the selected model to scale via AR at the planned location.
Perform hydraulic balancing
The hydraulic balancing calculates the optimal volume flows according to Method B and outputs the setting values for each valve. The eligible documentation is generated automatically.
hydraulic balancing.
Which businesses is the autarc planning module suitable for?
Heating installation companies
...who want to plan heat pumps in existing buildings and independently carry out standard-compliant designs, without external service providers.
HVAC companies focused on renovation
...who want to handle heating load, hydraulic balancing, and heat pump sizing in a single pass for every project.
Companies with multiple planners or locations
...who need a central platform for project data, calculations, and reports.
Start-ups and growing businesses
...who want to work digitally from the start and avoid legacy siloed solutions.
What can HVAC companies achieve with autarc?

50% less time for building data acquisition and calculations
Thanks to LiDAR scanning and automated calculations, manual data collection with a tape measure and transfer to separate systems are eliminated.

Save up to 12 hours per project
Building data capture, heating load calculation, and hydraulic balancing are all managed within one software – without data breaks or manual transfer.

Over 270 systems planned annually with autarc
The Daume Group – with over 1,250 employees across 20 companies – relies on autarc as a trusted partner for heat pump planning.
2000+ companies rely on our software.






Less time planning. More time installing.
Additional Modules: All in one software
Office
Manage your customers, quotes, and invoices digitally. The integrated Voice Agent handles inquiries around the clock and assigns them automatically. Through the customer portal, you can inform your clients about the project status at any time and make important documents centrally available.
PV Planning
With autarc, you can significantly accelerate your PV planning. From digital roof surveys and module layouts to and yield simulation, autarc helps you implement projects faster, more precisely, and more efficiently, significantly reducing planning effort.
Job Site
With the , your installers have all project information on their smartphone or tablet. Document construction progress and create acceptance protocols easily and conveniently. Offline work is possible. Data synchronizes automatically as soon as an internet connection is available again.
Services
autarc assists you with applying for funding, creating energy performance certificates, grid registration, and oil tank disposal. This allows you to complete all important administrative steps directly from the software, significantly reducing the workload for your office.
Frequently Asked Questions
How much does autarc cost for heat pump planning?
autarc offers various packages depending on business size. The Pro App user license starts at €39 per user per month with an annual plan. You can find all details on the price list.
Do I need an iPhone for the LiDAR scan?
The LiDAR scan works with all Apple Pro devices: iPhone 12 Pro and newer, as well as iPad Pro from 2020 onwards. Alternatively, room dimensions can also be entered manually – the LiDAR scan is not a prerequisite for using the planning modules.
Are the calculations eligible for funding?
Heat load calculation according to DIN EN 12831, heating system design according to VDI 4645, and hydraulic balancing according to Procedure B – all calculations meet the requirements for KfW and BAFA funding. The software automatically generates the complete documentation.
How long does a complete heat pump planning take?
With autarc, planning a single-family home takes approximately 30 minutes, according to our own estimates – from building data acquisition and heat load calculation to the final design report. LiDAR scanning takes less than 15 minutes.
Does autarc also work for existing buildings?
autarc is specifically designed for heat pump planning in existing buildings. The software takes into account existing radiators, pipe networks, and insulation standards, and checks whether the current heating surfaces are sufficient for heat pump operation.
Which heat pump models are included in the software?
The installation site simulation offers over 800 heat pump models from various manufacturers. The heating system design suggests suitable devices based on heating load and project data.
Can I use autarc offline?
autarc is cloud-based but fully usable offline. LiDAR scans and calculations work even without an internet connection. All data synchronizes automatically as soon as a connection is established.








