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Quest EHS 31 Pro

The Quest Power Electric Heat EHS 31 Pro portable electric heater provides two power options — 30 amps/18,000 BTUs and with the flip of a switch the 50 amp setting provides 31,000 BTUs. Quest Heaters’ multiple ducting options and powerful BTU outputs can bring immediate, safe heat when and where it is most needed on the job site. All Quest electric heaters are ETL Certified, UL Listed, and NEC Compliant.


British thermal unit (BTU) is an energy unit used to measure thermal energy needed to heat or cool spaces.


Quest PowerHeat EHS 31 Specifications

Part No.: 4030220
Power: 30 or 50 Amps, 220 V
Max BTU: 31,000 BTUs
Max Temp Rise: 80°F Temp Rise
Airflow: 360 CFM
W x H x D: 20.25″ x 40″ x 21.4″
Weight: 90 Lbs.

Optional Accessories

4024750 12” x 25’ Intake Flex Duct
4024969 16” x 20” x 2” Pleated Media MERV-8
4021475 16” x 20” x 2” Standard Pleated Media MERV-11
4027326 25’ 240V Cord Kit
4031045 50’ 240V Cord Kit


  • Listed by ETL to UL Safety Standards, NEC Compliant
  • Startup Delay to prevent dangerous arcing/sparking
  • Double-Walled, Screened Enclosure for heating elements
  • Automatic Low-Airflow Shutoff
  • Internal 140ºF Safety Thermal Cutouts
  • Two 8’ 4-Pole Grounded Power Cords (1 dryer, 1 range) included with unit
  • Quest Thermostat with 25’ connecting wire included with unit
  • Unique multiple ducting options (12” inlet, 12” outlet)
  • Detachable 12” Duct Collar stores in lid with room for power cords
  • Stainless steel cabine

Any Questions?
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