13715 - Smith 13715 Propane Heating Tip for Versa-Torch

Technical Overview of the Smith 13715 Heating Tip

The Miller Smith 13715 is a specialized screw-on heating tip designed explicitly for use with alternate fuel gases, specifically Propane and Natural Gas. Unlike standard acetylene tips, which rely on the high primary flame temperature of acetylene, this tip is engineered to maximize the secondary combustion characteristics of Liquefied Petroleum (LP) gases. The internal geometry of the tip is calibrated to stabilize the flame front of propane, which has a lower flame propagation speed than acetylene, ensuring a consistent burn without the risk of flashback or flame lift-off commonly associated with using incorrect tips for alternate fuels.

This component features a multi-flame orifice configuration. This design distributes the heat output over a wider surface area compared to a single-point welding tip, making it ideal for applications requiring soaking heat rather than localized fusion. With a rated output of approximately 16,600 BTUs, the 13715 tip provides sufficient thermal energy for brazing, soldering, and pre-heating applications on medium-sized workpieces. The multi-flame structure ensures that the BTU potential of the propane is fully utilized, creating a bushy, enveloping flame that wraps around tubing or fittings.

Mechanically, the 13715 utilizes a threaded screw-on connection. It is manufactured to interface directly with the Smith AT61 threaded tube or the AT600 series twin-flame tip assemblies. This modularity is a hallmark of the Versa-Torch system, allowing operators to switch between welding, cutting, and heating attachments rapidly. The tip is constructed from high-grade copper and brass alloys, selected for their thermal conductivity and resistance to oxidation at elevated temperatures. Proper seating of the screw-on thread is essential to maintain the gas seal and ensure the venturi effect within the mixer functions correctly for the specific gas density of propane.

Industrial maintenance professionals should note that this tip is strictly for heating and brazing operations and is not suitable for fusion welding of steel, as propane combustion does not produce the reducing atmosphere required for a sound weld puddle in ferrous metals. It is an essential consumable for MRO inventories supporting HVAC, plumbing, and general fabrication where propane is the preferred fuel gas due to its availability and cost-effectiveness.