Heat Network Technical Assurance Scheme
Prepare for HNTAS while improving how your heat network actually performs.
HNTAS
The Compliance Challenge
Heat-network technical assurance introduces a more structured focus on technical standards, evidence and performance. For owners and operators, the challenge isn't simply producing documentation; it is understanding the network, identifying gaps, and creating a practical route to compliant, efficient operation.
The Zerith Approach
Zerith approaches HNTAS from both assurance and engineering perspectives. We review available design and operational information, including metering, controls, generation, distribution and network performance, to identify evidence gaps and prioritise practical improvements.
Our expertise combines CIBSE Heat Network Consultant and HNTAS accreditation with 30 years of experience in heat network design, installation, commissioning, and validation.
We help clients assess their portfolios to identify and verify which assets qualify as heat networks.
Heat networks are not limited to space heating. They may also provide cooling and domestic hot water.
Two Ways to Work With Zerith
The ZECO AI Advantage
ZECO AI turns a periodic compliance exercise into a repeatable management process.
Data, evidence, calculations, actions, and opportunities can be maintained in one place, reducing reliance on spreadsheets and improving visibility across reporting cycles.
What You'll Receive
Why Zerith - Move Beyond Just Compliance
Heat networks can be highly energy- and CapEx-intensive to install. When operated inefficiently, they can also drive up ongoing operational costs.
Even when a heat network meets technical requirements, inefficient operation can still lead to avoidable costs and emissions.
Zerith uses the assurance process to uncover opportunities for improvement across generation, distribution, controls, metering, and operational strategy.
We support your regular HNTAS reporting and help you turn recorded data into practical insight, so you can maximise heat network efficiency, reduce carbon and operational costs, and strengthen your competitive edge.
Frequently Asked Questions
Zerith makes HNTAS compliance clearer, simpler and more achievable.
Our skilled, accredited HNTAS consultants guide you through every stage — from discovery and verification to compliance, improvement and long-term success.
Don't treat HNTAS as paperwork. Use technical assurance to build a better-performing heat network.
Book an HNTAS Consultation.
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Yes. We can assess the available information, identify gaps, and establish a prioritised readiness plan.
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Yes. The service can be applied to operational networks and to projects requiring technical assurance support.
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Yes. The platform approach is particularly useful for organising evidence and actions across portfolios.
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The regulatory and scheme framework is evolving. Zerith verifies the current requirements and implementation timetable at the point of engagement.
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Energy Audits • ESOS • SECR • ISO 50001 • Building Performance
