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Standard Features
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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.


Wacker Neuson
Model Year
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155 in. (3,937 mm)
80 in. (2,032 mm)
67 in. (1,701 mm)
Dry: 3,230 lbs. (1,468 kg)
With Fuel: 3,905 lbs. (1,775 kg)


Fuel Type
Diesel #2
Fuel Tank Capacity
100 gal. (379 l)
Fuel Consumption
3.3 gph (12.49 l/h)


Run Time
30 hrs.
Air Flow
3,778 cfm (6,418.9 m³/h)

Standard Features

 Features 658,000 BTU/hr at max consumption (4.7 gph diesel), up to 4,000 cfm and 3.5 in. Water Column Static Pressure along with sealed alternator for longer service life.  
 Automatic louvers help maintain desired temperatures while high performance mineral oil fluid helps achieve outlet temperature up to 250F (120C).  
 Designed to be environmentally friendly with spill containment of all engine oil / coolant and mineral oil fluid.  
 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.  
 The HIF 690 is CSA certified, UL approved and TDG compliant.  
Engine / Motor
 Kubota V3600-T-E3B  
    73.7 hp (55 kW) @ 2,400 rpm  

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*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.