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TCH250 Heating System (Thawzall)

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TCH250 Heating System (Thawzall)
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Hydronic Portable Heating & Concrete Curing System

The Thawzall TCH250 Hydronic-Glycol Ground Heater with it’s improved capability with patented HEATZONE® fluid distribution technology. Superior THAW, CURE, HEAT for any job. Delivers a blistering 250 MBH of heat with unparalleled uniformity through 5 separate 600’ (182m) zones. It THAWS more quickly, CURES more evenly, and saves a minimum of 24 gallons (91 liters) of fuel per day over its closest competitor.


• Newly designed “series flow pattern” provides more flow for better heat transfer. • Ease-to-use and newly designed Control box located at rear passenger side. • All controls in one place – for easier operator interface. • OFF-ON switch allows for untrained operator use. • Set temperature at HTF-returns for more accurate cold weather concrete curing. • Fuel gauge and low water alert are added to the control box for trouble shooting. • Flow is increased through larger sized and shorter piping, resulting in faster thawing and used with available unit heaters – more warm air delivery. • New Power/In-Power/out and free-wheeling feature for reel operation with dynamic brake


THAW frozen ground sq ft 3,000-6,000 sq m 278

CURE concrete sq ft 6,000 sq m 550 with accessories sq ft 18,000 max sq m 1,670 max

FROST prevention sq ft 9,000 sq m 840 with accessories sq ft 27,000 max sq m 2,500 max

HEAT buildings cu ft 400,000 cu m 11,300

Input/Output MBH* 280/234

Operating Range °F 70-200 °C 21-93

Operating Pressure psi 1-5

Fuel Consumption (max) gph 1.75 lph 6.62

Run Time days 3+

Pump Capacity gpm/gph 30/1800 lpm/lph 110/6,800


L x W x H in 170 x 84 x 97 cm 431 x 213 x 246

Weight w/fuel & fluid lbs 5,600 kg 2,540

Optional Generator lbs 310 kg 140

Fuel Capacity gal 160 liters 600

HTF (Heat Transfer Fluid) gal 122 liters 460


One – 1/2 hp Pump Closed Loop Centrifugal

Hose Length (5 zones x 600’) ft 3,000 (5 zones x 182m) m 915

Electrical, GFI 1) 20 amp x 120 vac

HTF Pumpability °F -80 °C -62

Fuel Winter blend diesel or #1 fuel oil

Hitch Choices Forged, Stamped, or Pintle

Diesel Generator 7.0 KWH Liquid Cooled – OPTION and add to the above price


Thawzall builds rugged and reliable portable heaters for the rental markets where dependability and serviceability are key elements for a successful rental customer. In support of Thawzall’s customers, we offer 24/7 technical support for the operators in the field and the service techs not familiar with heating equipment.


Ground Heating

For quick, efficient and even ground thaw, no other glycol heater on the market beats Thawzall.

Frost Removal

Thawzall glycol heaters can prevent frost up to an area of 27,000 square feet.

Concrete Curing

No other glycol system offers the reliability and dependability for efficient cold weather concreting. All heating zones register a return temperature for assurance that the area is receiving the required heat necessary for appropriate concrete curing.

Interior Heating

Combined with the Thawzall unit heaters, each Thawzall glycol heater provides clean, dry air for the attenuation of humidity and cold air .

Oil and Gas Markets

Thawzall glycol heaters are used on most frack sites for cold weather applications. Freeze prevention in water tanks, pipelines, well heads, etc., Thawzall has the right glycol heater.

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