FAQ
Scope of Delivery:
Wöhler GS 300 Gas Sniffer
17" gooseneck probe
4 AA batteries
Carrying case
Proper gas furnace pressure adjustment is essential for safe, efficient, and code-compliant operation. Incorrect manifold pressure can lead to poor combustion, elevated CO levels, reduced efficiency, and premature equipment failure. This guide helps HVAC professionals perform accurate gas furnace service following NFPA 54 and manufacturer recommendations.







