Burner tuning & O2 trim

Q: What should stack O2 be?

Gas-fired: ~2–3% at high fire. Higher = excess air = loss; lower risks CO. Trim control holds the line as conditions vary.

Q: Is this just maintenance?

It's control: seasonal air density, fuel variation and load swings move the optimum daily — trim follows it automatically.

Q: How does it interact with economizers?

Multiplicative: less excess air also means less mass flow to recover from — tune first, then size recovery.

Excess air carries paid heat up the stack. O2-trim control holds combustion at optimum continuously instead of at last year's service visit.

Size it for your plant →Carbon bill calculator

The numbers

Cost, effect, payback

Metric	Value	Note
Abatement cost	≈€-15–5/t CO2
Addresses	1–3%	of relevant emissions
Typical payback	<1 yr
Carbon value at full price	€77.4/t avoided	EUA 11 Jun 2026

How it works

Mechanism & sizing

Every 1% O2 reduction ≈ 0.5–1% fuel. Stack O2 above 4–5% on gas = money leaving. Trim systems pay back in months on anything above ~3 MW; manual quarterly tuning is the floor for smaller plant.

Inzonex removable modular insulation on industrial equipment

Cut the tonnes at the source

Hot industrial equipment? Cut the heat loss.

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:

Up to 90% less heat loss from insulated surfaces
Surface temperature ≤45 °C — touch-safe for workers (EN ISO 13732-1)
6× faster maintenance access than fixed cut-and-weld lagging — unclips and refits in minutes, no destruction
Inspectable — comes off to check for corrosion under insulation, then refits like-new (generic jackets often don't survive removal)
Typical payback under 2 years (some 9–11 months)

See Inzonex process-equipment insulation →Run the savings study

FAQ