User Manual for DEWALT DXH70CFAVX Cordless Forced Air Propane Heater

Quick guide for the DEWALT DXH70CFAVX Cordless Forced Air Propane Heater. Includes setup, operation, safety warnings, maintenance, and troubleshooting.

Quick answers from the manual

Quick answer

The DXH70CFAVX is a cordless forced air propane heater. It requires proper ventilation, a propane supply, and either a DEWALT battery or 120V AC power to operate. p. 1, 7

Key actions

Start the fan before igniting the gas. p. 7
Check for gas leaks with soap and water. p. 7

First start

Connect propane, insert battery or connect to 120V AC, turn on fan, wait 3 seconds, press fuel valve button. p. 7

Problems and fixes

Fan LED flashes 2-flashes

Check for fan inlet blockage, locked rotor, or high winds.

p. 7

Maintenance and reset

To reset the safety solenoid lockout, press the on/off switch. p. 7

Technical specifications

Parameter	Value	Meaning	Pages
Burn Rate	30,000-70,000 BTU/hr	Heat output range	p. 4

Where to find it in the PDF

Specifications p. 4
Wiring Schematic p. 9
Parts List p. 17

Table of contents

Manual images

Click an image to enlarge

Page 16

Page 20

Important Information from the Manual

This manual provides essential safety, operation, and maintenance instructions for the DEWALT DXH70CFAVX Cordless Forced Air Propane Heater. Never leave the heater unattended while burning. This heater is designed for temporary heating of buildings under construction, alteration, or repair and is for indoor use only with adequate ventilation.

Safety Precautions

Do not use in unventilated areas.
Keep combustible materials (furniture, paper, clothes) at least 6 feet from the front and 2 feet from the sides and rear.
Do not block air intake or exhaust.
If you smell gas, immediately stop operation, open windows, and contact your gas supplier or fire department.
Do not use in areas where gasoline, paint fumes, or other flammable liquids are present.

Preparing for Operation

Inspect the heater for shipping damage.
Charge and insert a compatible DEWALT battery or connect to 120V AC power using an extension cord.
Connect the hose and regulator assembly to the propane cylinder (POL fitting).
Connect the hose to the heater.
Slowly open the cylinder gas valve and check all connections for leaks using a soap and water solution.

Operation

The heater features a blower fan and a manual gas valve. The blower fan must be turned on before the gas/igniter valve is pressed.

Press the on/off switch to start the fan. The green LED will turn on solid.
Wait 3 seconds for the safety lockout to disengage.
Slowly depress the black gas/igniter valve button to ignite.
Hold the valve button for 30-60 seconds after the burner lights, then release.

Maintenance and Storage

Inspect the heater before each use.
Check the "O" ring on the POL fitting; replace if damaged (Part #F273786).
When storing indoors, disconnect the propane cylinder and store it outdoors.
Clean the exterior of the battery and charger with a soft cloth or non-metallic brush.

Troubleshooting

If the fan LED flashes an error code of 2-flashes, the fan is not operating properly. This may be caused by:

Fan inlet blockage or contamination (e.g., drywall dust).
Locked fan rotor.
Minimum RPM not detected.
Failed fan component.
High winds or drafts.

Manufacturer information

DEWALT

Brand profile

Manufacturer website https://www.dewalt.com Support https://www.dewalt.com/support Manufacturer manuals https://www.dewalt.com/support

Practical help

Common problems

Heater fails to light

Ensure the fan is running, wait 3 seconds, then press the black fuel valve button. If it fails, release and repeat.

Gas odor detected

Immediately stop operation, close gas supply, and check for leaks using a soap and water solution.

Excess flow check valve stops gas

Close the cylinder valve, then open it again very slowly.

Before use

Check for shipping damage
Ensure proper ventilation
Verify propane cylinder is secure and vertical
Inspect hose and regulator for wear
Check battery charge or connect to 120V AC

Specs in practice

Electrical Input: 20 Vdc / .6A or 120V AC
High Temperature Control: 221°F (105°C)

Images and diagrams

Wiring diagram shows connections for switch, solenoid, igniter, fan, high limit switch, and battery/AC input.

Model compatibility

Certified for use with propane only.
Compatible with DEWALT 20V MAX and FLEXVOLT battery packs.

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Manual page author

Emily Carter

User documentation editor

Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.