06-27-2007, 08:12 PM
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Member
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Join Date: Mar 2007
Location: Ormond Beach, Florida
Posts: 8,250
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Re: problem?
Originally Posted by Frank Kunselman
The IFGC 503.10.4 - Two or more appliances connected to a single vent states "...Vent connectors serving category I appliances shall not be connected to any portion of a mechanical draft system operating under positive static pressure...".
Actually, it states:
- 503.10.4 Two or more appliances connected to a single vent.
Where two or more vent connectors enter a common gas vent, chimney flue, or single-wall metal pipe, the smaller connector shall enter at the highest level consistent with the available headroom or clearance to combustible material. Vent connectors serving Category I appliances shall not be connected to any portion of a mechanical draft system operating under positive static pressure, such as those serving Category III or IV appliances.
Go all the way back and read and review Appendix B, SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES, AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS
That clearly shows, states, and sizes vents for natural draft appliances in combination with fan assisted vent appliances.
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