Durable Construction: Features a die-cast aluminum body and cold-rolled steel cover for long-term service in mechanical rooms

Can this switch be used for low-pressure applications

Replacing it with a fresh 20J90 spark ignitor restores the high-energy arc required for gas ignition

The air vent (013L8011) and thermostatic operator (013G8250) must be purchased separately to complete the assembly

Common Service Questions What is the BTU rating for the Robertshaw 710-508

Johnson Controls V47AA-2 Valve 30067439-890 Durable Construction: Features a die-castThe Johnson Controls V47AA 2 Valve is a 3 8" NPT temperature actuated water regulating valve engineered for direct acting flow control in demanding hydronic and cooling applications. Built with a rugged cast brass body, this valve is designed to open specifically on a temperature increase at the bulb. It features a broad heating point range of 160 to 230 degrees F, making it a reliable solution for maintaining precise thermal setpoints. The assembly