In this installment of Weekly Boiler Tips we cover how wiring diagrams work, the most common switches and symbols, and how to test limits to build your own reference guide. Troubleshooting without a ...

Join us this week as we decode the symbols commonly found in boiler wiring diagrams. Discover how to recognize and understand the significance of each symbol in this quick guide. Safety notice: Always ...

For some reason, heating system wiring seems to mystify some people, especially my plumber friends. (I can pick on plumbers; I’ve been one for 25 years.) Most plumbers plug in their droplights and ...