In most audited plants: fixing what's broken or bare — steam traps and uninsulated components. A bare DN150 valve at 250 °C wastes ≈9,000+ kWh of fuel a year; removable insulation covers typically pay back inside 2 years (often 9–11 months) and are negative-cost once carbon pricing is counted.
From our guide: Industrial Decarbonization Initiatives — 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: