Proposed Revision to PTCS Ducts Inside Specifications

Jan 31, 2026

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This document outlines proposed revisions to the PTCS Ducts Inside Specifications, highlighting the consideration of allowing some ducts to be positioned outside. The Regional Technical Forum (RTF) originally adopted these specifications on August 5, 2008, amidst concerns over the stringent requirement that all ducts be located indoors. The revisions were prompted by feedback indicating that this requirement may be too onerous. A subcommittee meeting held on January 29, 2009, brought together key stakeholders to discuss these proposals and examine whether in-progress inspections suffice or if further testing is needed.

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Proposed Revision to PTCS Ducts Inside Specifications

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Proposed Revision to PTCS Ducts Inside Specifications Allowing some of the ducts to be outside March 2nd, 2009 Regional Technical Forum
History • August 5th, 2008: RTF adopted the PTCS Ducts Inside Specifications • January 20th, 2008: Energy Star New Homes Technical Review Committee took issue with the specifications • Too onerous to require all the ducts inside • However, if all ducts are not inside, is an in-progress inspection adequate, or should a test be required?
Re-Convened a Subcommittee Meeting • January 29th, 2009 • Attendees: • Andres Morrison • Mark Johnson • Adam Hadley • David Hales • Brady Peeks • Buz Alexander • Anne Brink • Eli Clandell • Rob at ODOE • Dave Baylon • Mike Lubliner • Ken Eklund • Dale Horton
The Subcommittee’s Proposal