Ask Experts Questions for FREE Help!
 
Free Answers in 3 Easy Steps

Register Now		 3 Steps
 
Ask QuestionsprogressAnswer QuestionsprogressBuild ReputationprogressBecome an Expert
 
At Ask Me Help Desk you can ask questions in any topic and have them answered for free by our experts. To ask questions or participate in answering them you must register for a free account. By registering you will be able to:
  • Get free answers from experts in any of our 300+ topics.
  • Accept money for answers that you provide.
  • Communicate privately with other members (PM).
  • See fewer ads.
  Answer this Question    Ask about Heating & Air Conditioning    Ask about another Subject  
 
PDA

cblake240
Dec 13, 2007, 05:13 AM
I am installing a new hi efficiency gas pack HA/C system in a 45 year old brick rancher with conventional galvanized ductwork in the crawl space, returns uninsulated. Contractor says I also need all new flexible ducts, rather than added insulation to the returns. Is that necessary? Code requirement? Thanks
hvac1000
Dec 13, 2007, 07:27 AM
You can insulate your old duct. Flex duct is a LOT easier to work with than sheet metal.
SARDO
Dec 13, 2007, 07:32 AM
Hello,

Is 72 degrees air condition the same as 72 degrees heat? and does humidity have anything to do with it.

Thanks Sardo
caibuadday
Dec 13, 2007, 01:19 PM
I am installing a new hi efficiency gas pack HA/C system in a 45 year old brick rancher with conventional galvanized ductwork in the crawl space, returns uninsulated. Contractor says I also need all new flexible ducts, rather than added insulation to the returns. Is that necessary? Code requirement? Thankswith the same diameter, straigth air duct have friction: more air flow
hvac1000
Dec 13, 2007, 01:28 PM
straigth air duct have LESS friction:
caibuadday
Dec 13, 2007, 03:19 PM
straigth air duct have LESS friction:ooppp thanks,,, less friction more flow