Reduce excess air by adjusting the burner and combustion air dampers.
Improve insulation on boiler, pipes, flanges, fittings and other equipment.
Install performance-monitoring equipment.
Make sure sensors and control devices can be accessed easily for control and maintenance.
Repair, replace or add air vents (e.g. thermostatic air vents).
Find out if any combustible by-products (e.g. waste hydrogen, oxygen, carbon monoxide, biogas or hydrocarbon streams, or biomass) could be used as no- or low-cost boiler fuel supplements.
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