Designed for experienced contractors, this advanced-level course provides an in-depth look at Navien Combi-Boiler systems. The session will cover best practices for installation and service, with a touch of error code diagnostics and basic troubleshooting techniques. Participants will also engage in a hands-on unit teardown for practical learning and system familiarity. NATE CEH credit certificates are […]

Designed for experienced contractors, this advanced-level course provides an in-depth look at Navien Tankless Water Heater systems. The session will cover best practices for installation and service, with a touch of error code diagnostics and basic troubleshooting techniques. Participants will also engage in a hands-on unit teardown for practical learning and system familiarity. NATE CEH […]