Helping you meet the Heat Network Regulations & optimise your heat network or district energy systems
Dedicated to ensuring the efficiency, performance, and compliance of your heat networks and district energy systems

What We Offer
Our team of experts are equipped to handle every aspect of your heat network or district energy needs, from initial concept design and implementation to ongoing maintenance reviews and performance optimisation.
Plant Room and Energy Centre Reviews
We evaluate and optimise both new and legacy installations, ensuring your systems achieve peak performance from conceptual design through to commissioning and handover.
District Energy Building Connection Assessments
Our assessments verify the performance of new or existing building heat networks and provide modification recommendations to ensure compliance.
Heat Network Consultancy
Offering design support, technical reviews, and HNES optimization reporting, we ensure your systems are operating at their best.
Acceptance Testing
We conduct thorough testing of plant rooms, energy centres, distribution pipework, HIUs, and customer-side heating systems in line with the latest standards.
Decarbonisation Feasibility Studies
Our studies explore the feasibility of integrating renewable technologies into your heat networks, helping you move towards a sustainable future.
Commercial Heating and DHW Solutions
We provide technical reports and solutions to address existing issues within your commercial heating and domestic hot water systems.
Maintenance Regime Reviews
Our reviews offer recommendations to improve your maintenance regimes, ensuring efficient and reliable operation.
Heat Network Monitoring
We offer both temporary and permanent monitoring solutions to ensure compliance with regulations and optimize your network’s performance.
Plant Room Dilapidation Surveys
Our technical condition reports provide detailed insights into the state of your plant rooms, energy centres, and distribution networks.
Preparing for the Future
We can help you demonstrate compliance with the minimum standards and requirements of the regulations.

With the Heat Network (Metering and Billing) Regulations 2014 already in place and the Heat Network Technical Assurance Scheme (HNTAS) due to be launched in 2025, here at GESTI Limited we can help you demonstrate compliance with the minimum standards and requirements of the regulations.
Communal heat networks and district energy networks need to achieve the regulatory technical requirements of the Heat Network Technical Assurance Scheme (HNTAS).
Under the codes, heat networks will need to achieve certification against these standards – which are designed to ensure network performance and efficiency.
We can help you in the transitioning period to get the right metering in place to prove the heat network performance and optimisation.
As CIBSE: Heat Network CP1:2020 states the use of data is key to ensuring optimal performance of a heat network – ‘if you can’t measure it, you can’t manage it’.
We understand that legacy heat networks may not have the infrastructure to obtain network data and metrics, as they do not have the relevant sensors or metering in place.
At GESTI, we are able to support you with the installation of gas, electricity, water, heat or energy temporary metering, which may be funded by the HNES revenue grant, if successful.
This can provide operational data availability, as a baseline to further support additional funding applications and optimisation studies.
This will also help the heat network operator to collect data to show they continue to meet the HNTAS key performance indicators.
Please get in contact to discuss the ways in which GESTI Limited can help you and your heat networks.

Get in Touch
Whether you’re looking to upgrade your existing systems, integrate new technologies, or ensure compliance with upcoming regulations, GESTI Limited is your trusted partner. Contact us today to discuss how we can support your heat network and district energy needs.
