| 摘要 |
DIRECT VENT OIL FURNACE An improvement in oil-fired, forced air furnace, or hydronic heating system or domestic water heating vented appliances, where gaseous products of combustion are ducted through a stainless steel flue pipe to the outside and the waste heat of which, acts to heat incoming combustion air. The improvement involves the combining of an outside air intake/exhaust manifold, a means of ducting the incoming fresh air to the burner, in coaxial vent material, and an air/flue gas separation system. The products of combustion are thus sealed from the home environment, and driven to the exhaust terminal by the static pressure generated by the oil burner, while exchanging heat normally wasted in a chimney to the incoming combustion air.
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