Siemens Building Technology 544-578 Sensor 340155-7024 This valve is designed to

This valve is designed to interface with both Direct Spark Ignition and Hot Surface Ignition systems commonly found in modern 80% and 90%+ AFUE furnaces

this cast iron circulator pump features a robust 1/6HP

The Fenwal 35-605928-215 is a high-performance 24V direct spark ignition control module engineered for gas-fired equipment including commercial boilers

Designed for high-demand thermal applications

Compact Direct Mount: Saves space in tight condensing units and reduces vibration-related failure points common with remote-mounted switches

Siemens Building Technology 544-578 Sensor 340155-7024 This valve is designed toThe Siemens 544 578 Outdoor Temperature Sensor is a critical component for building automation systems requiring precise ambient air monitoring. This 1k Ohm Platinum RTD (Resistance Temperature Detector) utilizes a 375a output signal to deliver high accuracy linearity across a wide operating range of 40 to 150 degrees Fahrenheit ( 40 to 65 Celsius). Engineered for durability in harsh environments, its NEMA 4 weatherproof housing protects the sensing