| 摘要 |
A fuel-fired, stand-alone, low NOx and low CO, flammable vapor ignition resistant heating appliance has a fully premixed burner disposed in its combustion chamber. The entire burner combustion air quantity is coming from the surroundings of the heating appliance, the at lease one burner being mounted airtight in the combustion chamber or the at least one burner secured with flame arrestors within the combustion chamber, the air entrained in the venturi system of the premixed burner being filtered before entering the plenum chamber of the burner. This filtering device caused the lint, dirt and oil entrained with the combustion air to be removed therefrom before entering and potentially clogging the burner. The slotted burner is designed to be flammable vapor ignition resistant. The system works in a fail-safe method, by switching of when the filter device gets clogged. The filter device being the only thing that should be replaced when maintenance of the system is due to shutting off of the fuel supply. |
