Master AIR-BUS BV 691 S – indirect oil fired air heaters

Indirect fuel fired air heaters with separate Riello burner

AIR-BUS indirect air flow heaters have a wide heat exchanger in stainless steel pipes and a separate Riello burner. They offer high efficiency and the possibility of connecting up to four flex tubes per unit.

Capacity: 225 kW

Key features

• Strong and robust steel frame with metric bolts
• Powerful fan
• Air pressure 250 Pa (400 Pa for centrifugal version)
• Digital control of the combustion
• Unique 'cold start' button for very cold environments
• Possible connection to 4, 2 or 1 flexible tubes
• Flue gas exhaust
• Separate Riello oil burner
• Summer/Winter switch for ventilation only
• Electronic flame control with photocell

• Fan-Limit thermostat with automatic reset
• Limit thermostat with manual reset
• Fuel preheater
• Two oil filters: oil pump filter and suction filter
• Quick connector to external tank (optional)
• High-efficiency heat exchanger made of stainless steel pipes
• Stainless steel combustion chamber
• Robust wheels included
• 4 robust crane hooks

Product specifications

Suitable for

• Agriculture
• Automotive
• Buildings and commercial spaces
• Construction
• Emergency services

• Events and festivals
• General industry and production
• Military and aerospace
• Rental companies