• Thaw ground quickly, easily, and economically

6,000 sq. ft. standard up to 6,000 sq. ft. in ½ the time with accessories Varies based on soil conditions. Complete a Ground Heaters' Thaw Cost Plan.

  • Cure concrete in cold weather with confidence

up to 6,000 sq. ft. standard
up to 18,000 sq. ft. with accessories Varies based on application. Complete a Ground Heaters' Cure Cost Plan.

  • Prevent Frost large areas, very economically

up to 9,000 sq. ft. standard
up to 27,000 sq. ft. with accessories

  • Heat workspace dry heat and fuel efficient

up to 535,000 cu. ft. with accessories
Varies based on application. Ask your dealer for a Air Heat Cost Estimate.

  • Up to 140 hours run-time
  • Engineered for reliable, trouble-free start
  • Easy to operate
  • Economical
  • Dependable
  • Built Tundra Tough™
  • 83% heater efficiency - highest in the industry

Thaw and cure large areas:

  • Thaw up to 1 foot deep/day(dependent on conditions)
  • Set, finish and cure concrete like it's summer
  • Protect newly poured concrete from frost

Dimensions and capacities


Length 181"
Width 91"
Height 93"
Ground clearance 12"
Appx. Weight w/o fuel 5,580/6,105 lbs
Appx. Weight with fuel 7,190/7,715 lbs
Fuel capacity 230 US GAL
Heat Transfer Fluid 115 US GAL
Pumps, 265 gph positive displacement 2
Hose (2 x 1500 ft) 3,000 ft
Hose reels 2
Hose rewind 120V AC electric, w/ 12V DC clutch
Circulation loops 2
Tires ST215/75D14
Hitch pintle or 25/16" ball



Brakes 12V DC electric
Tie Downs (for transport) 4
Ground fault interrupt yes
Main circuit breakers 2
Burner motor thermal protection manual reset
Burner Ignition electronic
High temperature shutdown yes
No-flame shutdown yes
Low fluid shutdown/warning light yes
Vented closed loop circulation yes
Hydronic heater operating pressure 0 psi
Temperature gauges 5
Pressure gauges 2
Interior light, 120V AC 1



Heater, gross output 385,000 BTU/H
Heater, net output 321,000 BTU/H
Heater, efficiency 83%
Temperature controller digital
Fuel consumption at full load 2.75/3.17 US GPH
Fuel requirement winter blend diesel
Run time up to 140 hours
Electrical requirement 2 x 20 amps x 120V AC
Normal operating temp 100°F - 180°F
Normal hose operating press. 90-110 psi
HTF flow rate per loop 265 US GPH
Thawing capacity (std equipment) 3,000-6,000 sq ft
Thawing capacity (w/ accessories) up to 6,000 sq ft
Curing capacity (std equipment) 6,000 sq ft
Curing capacity (w/ accessories) up to 18,000 sq ft
Frost Prevention (std equipment) up to 9,000 sq ft
Frost Prevention (w/ accessories) up to 27,000 sq ft
Air heat capacity (w/ accessories) 535,000 sq ft
Performance monitoring system yes