Which gases are the most common fuel gases used in blowtorches?

The most common fuel gases used in blowtorches, particularly in various welding and cutting applications, include LPG (liquefied petroleum gas) and natural gas. These gases are widely utilized due to their availability, efficiency, and the control they offer over the flame characteristics. LPG is favored for its portability and higher flame temperature compared to other gases, making it suitable for tasks requiring precision and high heat, while natural gas is often used in stationary applications due to its lower cost and availability.

Both of these gases provide a good balance of high energy output and ease of use, which is essential for effective torch operations. Understanding the properties of these fuel gases enhances safety measures and operational efficiency when working with blowtorches, as each gas has specific characteristics that affect combustion and flame control.