The engine's only control was a fuel valve, which was connected to a stick within easy reach of the pilot. Once the engine was started and running smoothly, the valve was used only to stop the engine.

Locate the gas valve. The valve might be inside the fireplace instead of on the wall. Locate the pilot light and burner ...

The findings in the report further state that during the investigation, the OEM observed that the inlet valve of the HPP pump ...