Special fuels, blends and process gases require assessment of composition, safety and operating conditions before burner specification.
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FRELSER Special fuels, blends and process gases require assessment of composition, safety and operating conditions before burner specification.
Product

IGR — fire-tube boiler installations

The industrial IGR range serves fire-tube boilers. UNNOX is the newer design replacing IGR; the historical projects shown on this page use IGR burners.

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Heineken — 35 t/h boiler with two IGR burners
Heineken — 35 t/h boiler with two IGR burners
Product

Features and selection

Application

UNNOX: current range

UNNOX replaces IGR for new supplies. The photographs on this page document projects with IGR burners.

Application

Boiler retrofit

Replacement of original burners, with assessment of furnace, fuel and control interfaces.

Application

Engineering selection

Required capacity, back pressure, geometry and operating conditions guide configuration.

Heineken: applications with FRELSER burners

Heineken — 35 t/h boiler with two IGR burners. Twin-furnace boiler: replacement of the two original burners with two IGR burners.
Heineken — 35 t/h boiler with two IGR burners. Twin-furnace boiler: replacement of the two original burners with two IGR burners.
Replacement of the original burner with an IGR burner on a 15 t/h boiler at Heineken.
Replacement of the original burner with an IGR burner on a 15 t/h boiler at Heineken.
Green-clad boiler equipped with two burners: one for natural gas and a smaller one for biogas.
Green-clad boiler equipped with two burners: one for natural gas and a smaller one for biogas.
Explore the range: UNNOX