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Energy Efficiency: Enables the control board to make micro-adjustments to fan speed and staging
For contractors managing Bard unit maintenance
ensuring a perfect fit and reliable operation in cold climates
ensuring a clean break even after thousands of cycles
Featuring a 1-1/8" ODF solder connection and a full 1-1/8" port size
Williams 9303 Extension 326070-701 Energy Efficiency: Enables the controlThe Williams 9303 Extension is a professional grade 24 inch vent extension kit engineered specifically for direct vent gravity wall furnaces. This heavy duty galvanized steel vent extension is the standard solution for HVAC installers dealing with deep wall penetrations where standard venting falls short. It is designed for use with wall thicknesses ranging from 15 inches to 24 inches, ensuring a secure and code compliant flue path from the furnace to