The QHT Biasi Concentric Direct Vent DVF-4 Rigid system is designed and tested and certified to be used on the Biasi B10-3 thru B10-6 and SG-3 & SG-4 Cast Iron Boilers. The Biasi Concentric Direct Vent DVF 4 Rigid system is a non powered positive pressure side wall venting system. The Biasi DVF-4 Rigid Direct Vent Kit system uses a single hood for intake air and exhaust gases so its only necessary to provide one penetration through the house. The DVF4 Rigid System is supplied with all the necessary fittings to make installation quick clean and easy. The Biasi DVF-4 Rigid Oil Direct Vent hood is made of stainless steel. Biasi DVF-4 Direct Vent Kit requires the use of a Riello Direct Vent Burner included with the boiler and also sold separately by Design Heating.
External link | Downloadable Files
BIASI web site
Product Spec Sheet
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