New standards for heat networks announced
- Jon Ponting

- Sep 15, 2025
- 1 min read
The theory behind Heat Networks is great, and places like Copenhagen have proven they work, but many of us Brits still haven't warmed ♨️ to the idea of large scale community heating projects (pun intended, 'warmed to'... apologies).

Concerns about heat networks include a lack of freedom for occupants to switch, high running and maintenance costs 💰 , installation complexities 🔨 , and inconsistencies in the sign-off process ❌ .
To tackle these issues, DESNZ has published details of the Heat Network Technical Assurance Scheme (HNTAS), due to launch next year.
Info on HNTAS here: https://www.gov.uk/government/publications/heat-networks-regulation-technical-standards/heat-network-technical-assurance-scheme-hntas
It includes regulatory standards for all new heat networks (based on the current CIBSE voluntary standards), creates an 8 stage process that all District Heat Network designs must go through, and a new accreditation scheme. ✅
It's hoped these steps will ensure all new networks are low carbon, reliable, affordable, improve the reputation of networks, collect real-life data to prove performance and, most importantly, change public perception.
It seems crazy that Combined Heat and Power (CHP) was considered the future less than 10 years ago, but now we're totally focused on heat pump plant rooms and low temperature flow rates.
It's no surprise the use of heat networks feels disjointed after such a quick shift in focus. Hopefully HNTAS will help to stabilise the industry and allay concerns of developers, planners and homeowners alike.



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