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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.
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.
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.
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.
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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.
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.
Effectively monitor and record heat consumption.
Allocate heating costs accurately.
Reliable data, wirelessly connected.
Flexible and reliable wireless measurement technology.
Reliable wired communication for energy meters.

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.

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.
Our heat metering system uses advanced ultrasonic technology to measure heat consumption. These meters can transmit data wirelessly, so there is no need to visit the homes. Data is sent automatically on a weekly basis, so you always have the latest information at your disposal.
The compact and durable design features a long-life battery, allowing the meter to function for long periods without requiring maintenance. These meters can be linked to smart building management systems, making it easy to manage energy consumption, and they comply with European measurement guidelines.
Traditional billing distributes heating costs equally among tenants, regardless of individual usage, which often leads to unfair costs and disputes. Heat metering, on the other hand, measures actual consumption, so residents only pay for the heat they use. This data-driven approach provides greater control over energy consumption, increases cost transparency and ensures a fairer distribution of heating costs. The Heat Act stipulates that consumption measurement and consumption-based billing are mandatory in complexes with block heating.
In the Netherlands, the Heat Act stipulates that heat measurement is mandatory in collectively heated buildings. This allows actual consumption to be accurately measured and made transparent. In this way, the total costs of the building can be fairly distributed among the residents, and residents have the opportunity to save on their heating costs. Residents who heat economically pay less than residents who heat more. Landlords and property managers are responsible for complying with this legislation, for example by installing advanced measurement technology and consumption-based billing.
ista accurately measures the heat consumption of each resident and calculates the exact costs associated with it. Residents receive an accurate and easy-to-understand bill based on their individual heat consumption. This ensures transparency and fairness, as residents receive a bill for the energy they consume.
Residents who consume little energy receive a lower bill than residents who consume more energy.
Yes, billing based on consumption can lead to energy savings. When residents are aware of their personal energy consumption, they are more likely to heat their homes more efficiently, which can reduce overall heating costs. Studies have shown that individual billing can lead to significant energy savings and reductions in CO2 emissions.
Residents can view their consumption via the web portal and the My ista app. You can compare this consumption with your consumption in a previous billing period and with the average consumption in the building in which you live, for example. You can use our web portal and app if your property manager has signed up for this Monitoring with ista service. You can view the demo version via this link: Log in - my ista.
You can also read your consumption yourself on the meter. You can find information about this in our leaflets on how the meters work.
Yes, ista heat meters can be used in many heating systems, including those that use renewable energy sources such as solar thermal energy and heat pumps. This versatility ensures that properties with sustainable energy solutions can still benefit from accurate heat measurement and fair billing.
Our bespoke solutions are designed to help our customers reduce their environmental impact, improve health and safety in their buildings, and save energy costs.
Optimise heating systems for greater efficiency and savings.