1. Burner inspection
We check fuel, air, flame, and basic operation.
2. Flue gas measurement
We measure temperature, O₂/CO₂, CO, and draft.
3. Boiler inspection
We check surface cleanliness and signs of soot or condensate.
4. Flue and chimney inspection
We check for airtightness, obstructions, corrosion, and proper outlet.
Goal
To treat the system as a unified whole rather than just the burner or just the chimney.


