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  • RT0304 - RapidTHAW Heated Thawing Blanket RT0304 - RapidTHAW Heated Thawing Blanket
  • RT0304 - RapidTHAW Hi-watt Thawing Blanket RT0304 - RapidTHAW Hi-watt Thawing Blanket
  • GFCI - Power Cord & Plug GFCI - Power Cord & Plug

3' x 4' Engine Warming & Ground Thawing Heat Blanket 120V, 150°F, GFI, UL/CSA

Item #: RT0304

Quick Overview

RapidTHAW™ 3'x4' HIGH HEAT rugged outdoor thawing blankets are ideal for the toughest conditions. Roll it out, plug it in and start thawing stubborn ice and frozen ground in record time. Heat engine compartments, Cure Epoxy resins. RapidTHAW's quality design & construction allow them to be used in even the most harsh weather conditions.

Availability: In stock

Regular Price: $440.00

Special Price $339.00


RT0304 - 3' x 4' Heated Ground Thawing Blanket - Engine & Motor Warming - High Heat Curing

RapidTHAW™ ground thawing & equipment heating blankets are the most economical heated blankets available on the market today. Wattage = HEAT. These electrically heated blankets (in some cases) are double the wattage per sq. ft. of other brands. RapidTHAW™ is offered exclusively by Heat Authority and is also the most affordable heated construction blanket available. RapidTHAW™ blankets are superior in every detail. Weather-proof, Water-resistant, Tough-Rugged Construction helps them to stand out from the pack.

snow melting blanket 


RapidTHAW™ blankets will heat up to 150°F, making them the ideal choice for thawing quickly and safely. Additional insulation placed on top of the blanket will decrease heat loss and give maximum results by reducing the effects of wind and cold. Blankets have grommets conveniently placed at the corners & mid span to help secure or stake them to the ground.

Rapid THAW


  • THAW Frozen Ground
  • THAW Underground Pipes & Utilities
  • Heat Frozen Tanks
  • Heat Sand & Aggregate Piles
  • Pre-Heat Construction Forms & Materials
  • THAW to depths of 8' or more in proper conditions
  • Cure Epoxy Resins
  • Warm Engines Compartments for Cars, Trucks, Airplanes
  • 120VAC - 6’ GFCI Plug Included
  • ETL Certified to UL / CSA Safety Standards
  • Hottest Blanket On The Market ,  150°F +
  • Vinyl will withstand temps from -20°F to 200°F
  • All seams are heat welded to assure weather tight construction.


RapidTHAW™ blankets run full-throttle and maintain a consistent temperature beneath the blanket of ~ 150°F.  Adding a second layer of  insulated blankets (or tarps) on top is strongly recommened for maximum results. 

These durable blankets are reusable, roll easily and store compactly, ready for the next storm.

thaw ground and ice

RapidTHAW™ ground heaters are available in 3 convenient off-the-shelf sizes:

  • RT0304 - 3’ x 4’ – 120V, 393W, 15A (heated area ~ 28" x 40")
  • RT0308 - 4’ x 9’ – 120V, 1188W, 15A (heated area ~ 40" x 100")
  • RT0415 - 4’ x 15 – 120V, 1980W, 20A (heated area ~ 40" x 172") 

Ground Thawing


  • Thawing Frozen Ground for Roadwork
  • Thawing Frozen Ground for Trenching
  • Thawing Frozen Ground in Cemeteries
  • Thawing Frozen Ground for Utility Work
  • Thawing Frozen Ground for Construction Work
  • Thawing Snow on Sidewalks
  • Thawing Frozen Water Pipes
  • Thawing Ground Prior to Concrete Work
  • Curing Concrete in Winter
  • Heating Pipes & Tanks
  • Freeze Protection for Pipes & Tanks
  • Freeze Protection for Underground Pipes
  • Heating Equipment & Machinery
  • Outdoor Thawing, Heating, Curing & Warming Blanket
  • Garage Floor Heater
  • Mechanics Heated Mat
  • Engine Warmer for Trucks, Cars, Military Vehicles
  • Engine Compartment Heater for Boats, Airplanes, Tractors
  • Melts Wax in Buckets and Pails
  • Cure Epoxy Resins
  • 1001 Other Uses for Heating, Thawing, Melting, Warming, Curing and Freeze ProtectionkWh Map -
GTIN 0709818889370
Country of Manufacture United States
Dimensions 3' x 4'' (feet)
Manufacturer HEAT Authority
Adjustable Thermostat Internal/Fixed
Heat Range HIGH
Watts 396W
Amps 3.3A
Volts 120V
Warranty 1 Year
Certifications ETL Certified to UL / CSA Safety Standards
  1. Best review by John on 4/27/2019

    Best Quality product with best price

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  • Free Standard (UPS Ground) Freight To Lower 48 States
  • Free Standard Freight Does Not Include Service To Alaska, Hawaii, Or Destinations Outside The United States.
  • Contact Us To Make Other Accommodations For Shipments Outside The Lower 48 States or for RUSH Shipping.