portable gas heater problems

Portable gas heaters, like the DeLonghi RH35, are convenient heating solutions but can experience issues, especially if they have been unused for extended periods. This article will address common problems experienced with such heaters and offer solutions to ensure safe and efficient operation.

Problem 1: Difficulty in Lighting the Heater


  • The heater’s spark ignition is working, but the ceramic elements fail to light most of the time.
  • Using a match can successfully light the ceramic elements.

Possible Causes and Solutions

  1. Pilot Light Issues: If the heater has a pilot light, it might be obscured or not functioning correctly. Cleaning the pilot light area thoroughly can help. Use a small brush like a toothbrush to remove any dust or debris.
  2. Ignition System Service: A comprehensive service by a certified professional is recommended. They can dismantle and clean the system properly, ensuring all components, including the ignition system, are functioning correctly.

Problem 2: Heater Does Not Stay Lit


  • The heater flame goes out as soon as the control dial is released.

Possible Causes and Solutions

  1. Faulty Control Mechanism: This could indicate an issue with the control mechanism that keeps the flame lit. A certified technician specializing in LPG heaters should service the heater to diagnose and repair any faulty components.
  2. Safety Precautions: Portable gas heaters produce water vapor and can be a source of carbon monoxide gas. Always use a portable carbon monoxide (CO) meter in the same room and ensure adequate ventilation when the heater is in use.

Operating Instructions and Safety Tips

  1. Manual Replacement: If the original manual is lost, contact the manufacturer or search online for a digital copy. The manual provides essential information on operation and safety.
  2. Turning Off the Heater: If the control knob does not completely turn off the heater, use the main valve on the gas cylinder for complete shutdown. Ensure that the heater is turned off correctly to prevent gas leaks and other hazards.
  3. Regular Maintenance: Regular use and maintenance are key to keeping the heater in good working order. Prolonged periods of disuse can lead to problems with components like the pilot light and ignition system.
  4. Professional Servicing: If the heater has not been used for several years, it is advisable to have it serviced by a professional before use, particularly to check the pilot and ignition systems.


Addressing issues with portable gas heaters, such as the DeLonghi RH35, often involves troubleshooting the ignition system and ensuring the heater stays lit. Regular cleaning, servicing by a certified professional, and adhering to safety precautions are essential for maintaining the heater’s efficiency and safety. It’s also important to have access to the heater’s manual and understand the correct operation and shutdown procedures. Regular maintenance and awareness of carbon monoxide risks are crucial for the safe use of portable gas heaters.

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