A specialized solution for billing water heating.
We offer a comprehensive service for settling the costs of domestic hot water and central heating within a single, transparent system.
Your benefits at a glance:
Compliance with regulations
Accurate and transparent billing
Energy savings and cost reduction
Acting responsibly towards yourself and the planet
No more on-site visits thanks to remote measurement
Integrated heat energy billing – convenience, transparency, savings.
Thanks to the ista billing system, all data relating to heat consumption is presented on a single, transparent bill. Residents have full insight into their consumption and can easily control their costs.
In accordance with applicable regulations, in multi-unit buildings, there is an obligation to settle water heating costs together with central heating costs, as both heat sources are usually supplied from a single metering system. This is due to the provisions of the Energy Law and the Regulation of the Minister of Climate and Environment of December 7, 2021, which impose an obligation to settle heat costs individually based on actual consumption.
The right solutions for your Hot Water Generation.
Landlords
Ensure compliance with laws and regulations and simplify your heat cost management.
Property Managers
Save time and increase operational efficiency for your properties with automated billing.
Housing Cooperatives
Benefit from automated collection and reporting of consumption data for rental units.
Find out how to switch to water heating billing with ista.
Take control of your water heating bills with our simple solution.
Discover the advantages of joint heat energy billing (central heating + water heating).
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One bill – full transparency of heating costs for residents
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Billing based on actual consumption
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Compliance with applicable laws
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Convenient access to data via the ista24 portal or the istaConnect app
Facts & figures
6,300 employees
20 countries
3.7 mil. t CO₂ emissions avoided
43 mil. radio devices
14 mil. utilisation units
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Frequently asked questions
Discover more innovative solutions that will transform your property.
Our customized solutions are designed to help our customers reduce their environmental impact, improve health and safety in their buildings, and lower energy costs.
Heat cost allocation
Consumption-based billing with ista optimises and automates the process of heating cost billing and provides residents with an accurate and easy to understand billing.
Water consumption billing
We offer a range of services including water submetering, billing, and data analysis, which can help you to optimise water usage and reduce costs for your property.