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Wacker Neuson HIF690


HIF 690 Flameless Indirect-Fired Air Heater

The HIF 690 is ideal for potentially volatile applications where "no open flame" is a requirement. Engine driven, this flameless air heater develops very high CFM and static pressure to maximize your heat delivery. The HIF 690 features positive air and high temperature shutdowns and offers simple one button operation for a rental friendly design. Applications include Oil & Gas Exploration, Mining, Construction and Restoration.

  • Features 658,000 BTU/hr at max consumption.
  • Automatic louvers help maintain desired temperatures while high performance mineral oil fluid helps achieve outlet temperature up to 250 ◦F (120 ◦C).
  • Designed to be environmentally friendly with spill containment of all engine fluids.
  • CCV heater and crankcase pressure switch ensure reliable performance. Master switch is Lock Out/Tag Out approved for added operator safety and performance monitoring strobe light indicates from a distance that all systems are operating properly. In addition, a sealed alternator for longer service life.
  • The HIF 690 is CSA certified, UL approved and TDG compliant.



L x W x H Shipping 155 x 67 x 80 in
Weight Shipping 3,230 lb

Operating data 

L x W x H  155 x 67 x 80 in
Operating weight (Full Fuel) 3,905 lb
Operating temperature Normal 180 ° F
Air flow  3,778 CFM
Static Pressure Useable 5 W.C. (inch)

Electrical system 

Voltage  120 AC V
Current  15 A

Engine / Motor 

Engine / Motor type  Kubota V3600-T-E3B
Engine performance  73.7 hp
at rpm  2,400 rpm
Fuel type  Diesel #2, Diesel
Tank capacity Fuel Tank 100 US gal
Fuel consumption  3.3 US gal/h
Runtime  30 h