How to Connect a DEWALT Propane Heater to a 20lb Tank: A Comprehensive Guide

Connecting a DEWALT propane heater to a 20lb tank is a straightforward process, but it’s essential to follow the proper steps to ensure safe and efficient operation. This comprehensive guide will walk you through the entire process, providing detailed instructions and technical specifications to help you get your DEWALT heater up and running with a 20lb propane tank.

Understanding the DEWALT Cordless Propane Radiant Heater (DXH12B)

The DEWALT Cordless Propane Radiant Heater (DXH12B) is a versatile and powerful heating solution designed for use on the jobsite. This heater boasts a dual tank capacity, allowing for a runtime of up to 7 hours on a single 20lb propane tank. It is equipped with an Oxygen Depletion System (ODS) and a thermoelectric safety valve, making it safe for indoor use.

The DXH12B can be powered by any DEWALT 20V MAX or FLEXVOLT battery, and it features a quiet and reliable electronic ignition system. Additionally, it comes with a high-speed fan, an LED work light, and three USB charging ports, making it a valuable tool for a variety of work environments.

Connecting the DEWALT Heater to a 20lb Propane Tank

how do i connect dewalt propane heater to 20lb tank

To connect your DEWALT propane heater to a 20lb tank, you will need to purchase a 20lb tank adapter kit. This kit typically includes a hose with a male fitting for the heater connection and a 20lb male or female adapter for the tank connection.

Step 1: Attach the Male Fitting to the Heater

  1. Locate the propane connection on the back of the DEWALT heater.
  2. Carefully thread the male fitting of the adapter kit into the propane connection on the heater. Ensure a tight and secure connection.
  3. Use a wrench to tighten the fitting, but do not overtighten, as this can damage the connection.

Step 2: Attach the Adapter to the 20lb Propane Tank

  1. Identify the type of connection on your 20lb propane tank (male or female).
  2. If your tank has a male connection, attach the female adapter from the kit to the tank.
  3. If your tank has a female connection, attach the male adapter from the kit to the tank.
  4. Tighten the connection using a wrench, but do not overtighten.

Step 3: Connect the Hose to the Tank

  1. Attach the hose from the adapter kit to the adapter you just connected to the 20lb propane tank.
  2. Ensure a tight and secure connection by tightening the hose with a wrench.

Step 4: Turn on the Heater

  1. Ensure the heater’s power switch is in the “Off” position.
  2. Slowly open the valve on the 20lb propane tank to allow the gas to flow.
  3. Press the ignition button on the heater to start the electronic ignition.
  4. Adjust the temperature control knob to your desired setting.

It’s important to note that the fan on the DEWALT heater will not function if there is no battery inserted. However, the heater will still operate without the fan.

Safety Considerations

When using the DEWALT propane heater, it’s crucial to follow the manufacturer’s instructions and safety guidelines. Ensure the area is well-ventilated, and never leave the heater unattended. Additionally, regularly inspect the hose and connections for any signs of wear or damage, and replace them if necessary.


Connecting a DEWALT propane heater to a 20lb tank is a straightforward process that requires the use of a 20lb tank adapter kit. By following the detailed steps outlined in this guide, you can safely and efficiently set up your DEWALT heater to provide reliable heating on the jobsite or in your workspace. Remember to always prioritize safety and follow the manufacturer’s recommendations to ensure the best performance and longevity of your DEWALT propane heater.