It's an engineering statement with named methods (ASTM C680 / ISO 12241, DESNZ 2024 factors) — the same basis consultants use. For statutory assurance, back it with metered before/after consumption; the certificate states this explicitly.
From our guide: Carbon Savings Certificate — full context, charts and sources there.
Boilers, kilns, heat exchangers, valves and steam lines lose energy continuously. Inzonex makes patented (UK GB2508992.1) removable modular insulation — snap-fastened covers engineered per temperature tier, not generic off-the-shelf jackets: