View Single Post
Old 3/16/10, 3:27 PM
Gary Reecher Gary Reecher is offline
Active Poster
Join Date: Aug 2004
Posts: 273
Send a message via Yahoo to Gary Reecher
Please Note: Gary Reecher is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: ducting material

We encounter a few old Coleman 1950's heating only systems that have 3-1/2 inch branch pipes that need to be removed and upgraded to 6 inch to get the required airflow for air conditioning.