and Coleman catalogs

What is the difference between the 3B1B and the older 3B1A

as well as electrical connections

The York S1-024-19082-017 Heat Relay is an essential OEM replacement part engineered for precise thermal management in residential and commercial HVAC systems

Auburn FRS-9 Flame Rod R-448A and Coleman catalogsThe Auburn FRS 9 Flame Rod is a critical industrial flame sensor designed for high temperature applications in burner control systems. Engineered by Auburn, this flame ionisation rod provides reliable flame detection for commercial and industrial furnaces, heaters, and boilers. Built with high grade materials to withstand extreme thermal stress, the FRS 9 ensures consistent signal feedback to the burner management system (BMS). As a trusted furnace