Distributing heating costs fairly

Your all-in-one solution for heat cost allocation, accurate and transparent.

We are pleased to take care of complex tasks for you so that you can focus on your core activities.

Why choose smart heat cost allocation?

Comply with regulations

Be energy efficient and reduce costs

Be environmentally friendly and reduce your carbon footprint

Accurate and transparent individual billing

Radio-readable measuring systems

Your total solution for block heating.

Distributing collective heating costs does not have to be complicated. With our intelligent heat cost allocation system, we ensure accurate and fair billing that guarantees compliance with laws and regulations, while reducing disputes and administrative workload.

We understand that accurate heat cost allocation is essential for all parties involved. Time-consuming manual processes and on-site visits are now a thing of the past. Our automated system enables landlords to simplify their work, while residents benefit from clear, fair billing that reflects their actual consumption. 

With ista, you are assured of hassle-free heat cost allocation. With accurate consumption measurements, we ensure fair and transparent billing. At the same time, we encourage residents to be more conscious of their energy consumption, which not only saves costs but also contributes to sustainability.

Faster and fairer. Benefit from smart heat cost allocation with ista.

How does it work?

Heating cost allocation may seem complicated, but it is a careful and efficient process that ensures fairness and accuracy for everyone. 

New climate change and energy regulation legislation has made the process more complex and time-consuming for landlords, while residents still expect accurate and easy-to-understand bills.

Whether you are an owner, manager or resident, our solutions offer the accuracy and legal compliance you need. Using smart metering technology and billing, we ensure complete transparency. This saves you time and money, prevents uncertainties and disputes, and guarantees correct and efficient heating cost billing at all times.

Allocating heating costs based on consumption: How we turn a cumbersome process into a user-friendly experience.

Monitoring and easy access to data.

Accurate allocation of heating costs starts with accurate recording of consumption. Digital meters, such as heat cost allocators and heat meters, automatically measure individual consumption per dwelling and send this data by radio to a central reading system. Manual meter readings are now a thing of the past, while the information is always accurate and reliable.

Residents can view their consumption via a user-friendly web portal and app. This transparency makes it easy to monitor energy consumption and discover savings opportunities. It also ensures accurate billing without any surprises. 

Fast, transparent and compliant billing.

At the end of the billing period, the total heating costs are split into fixed costs and variable costs. Fixed costs, which usually account for 30-40% of the total, are the costs incurred to maintain and operate the installation, including fuel costs that are not directly dependent on consumption. The remaining costs, typically 60-70% of the total, are divided fairly based on actual consumption.

Once the data has been processed, ista produces an easy-to-understand and detailed statement of the fixed costs and individual consumption for each dwelling in the building. The statement is legally compliant and ensures complete transparency in consumption and associated costs.

100% Easy

Find your solution together with us.

100% Digital

Stay informed anytime, anywhere.

100% Sustainable

We give buildings a future.

Good to know: Our specialism in cost allocation also enables accurate and transparent billing of hot water consumption. This gives residents a clear overview of their costs, while property managers and owners benefit from a simple and legally compliant total solution. Our specialists will be happy to discuss all the options and your specific requirements with you during a personal consultation.

Maximum efficiency, with our advanced and future-proof measuring equipment.

By combining our total solutions with the innovative technology in our measuring equipment, managing your energy consumption has never been easier. Whether it concerns heat cost allocators, heat meters or water meters, they accurately track consumption in every home. Our specialists are happy to advise you on the best combination of our tools to optimise efficiency and savings.

Heat meters

Effectively monitor and record heat consumption.

Radiator meters

Allocate heating costs accurately.

Wireless Mbus

Reliable data, wirelessly connected.

Obrázok dátovej zbernice na diaľkový odpočet.

Radio system

Flexible and reliable wireless measurement technology.

Mbus system

Reliable wired communication for energy meters.

Residents

The consumption data is clearly displayed in the My ista app, making it possible to compare monthly consumption, identify consumption trends and discover savings. This insight provides complete transparency, so residents know exactly how much energy they are using. This helps them to use energy consciously and economically.

Owners and managers

You can also take advantage of our web portal, which allows you to centrally manage all information relating to the energy consumption of your property and the services provided.

Faster and fairer. Switch to smart consumption-based billing with ista.

Facts & figures

6,300
Employees

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20
Countries

3.7 mil.
t CO₂ emissions avoided

Obrázok zobrazuje zelenú ikonku na vysielanie - prenos dát.

43 mil.
Radio devices

14 mil.
Utilisation units

Frequently asked questions

Discover more innovative solutions to transform your property.

Our bespoke solutions are designed to help our customers reduce their environmental impact, improve health and safety in their buildings, and save energy costs.

Heating optimisation

Optimise heating systems for greater efficiency and savings.

Debicasso

Outsource the entire energy billing process to ista.