Space, NOx and burner compatibility — engineering, not physics. High-temp processes should always price it.
From our guide: Combustion air preheating — 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: