Greenthaw Systems New

Dryair 650 GTS

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  • The large 620,000 BTU heater provides you with ample BTU’s for ground thaw, concrete cure & space or fluid heating applications
  • Patented Flow Reverser  – Eliminates hot and cold zones in the thaw pattern
    • Reduces time & fuel costs by up to 50%
    • Consistent curing temperatures across the entire slab means the whole slab cures at the same rate
  • Patented Combustion Environment Control System
    • Preheats the fuel and air used for combustion
    • No need to bring it in to a heated shop before it goes out on the job. The preheater allows the unit to start & run even in sub 40 degree conditions
  • Industry leading multi-loop ground thaw set-up for job site flexibility and optimum fluid circulation & heat transfer
  • Manifold System allows for fan coils or heat exchangers to plug in for space heating or fluid heating

Additional hose and accessories are needed to reach the maximum thaw and curing capabilities listed below.



Fuel type Diesel
Fuel Capacity 250 US GAL
Output BTU/h 620,200
DG Version Natural Gas or Propane (Tri-Fuel Capable) 650GTS DG greenthaw system


Onboard Hose Max 5,000 ft
Thaw Area 7,500 ft² (std) 11,000 ft² (w/acc)
Cure Area 10,000 ft² (std) 25,000 ft² (w/acc)

Canadian Owned, Alberta Strong

SSR Equipment Ltd is your one stop compact equipment dealership.