https://www.energyvanguard.com/blog/got-manual-j-don-t-assume-it-s-correct/ Building science knowledge, HVAC design, & fun Fri, 04 Jun 2021 13:02:35 +0000 hourly 1 https://wordpress.org/?v=6.6.2 https://www.energyvanguard.com/blog/got-manual-j-don-t-assume-it-s-correct/#comment-437 Wed, 30 Jun 2010 21:02:14 +0000 http://energyvanguard.flywheelsites.com/?blog_post=got-manual-j-dont-assume-its-correct#comment-437 I know Manuel J! 
I know Manuel J! 
 
 
 
He installed the new system at my old house. I was a little warm in the summer, so he upgraded me by 1 whole ton to make me feel better. Funny thing is now my asthma and allergies are worse, but I feel great. My old system used to run all the time, and that new one only ran for a couple minutes and then shut off; that had to be saving me money.  
 
 
 
Anyway, Manuel Jose is Great!!

]]> https://www.energyvanguard.com/blog/got-manual-j-don-t-assume-it-s-correct/#comment-436 Wed, 30 Jun 2010 19:22:27 +0000 http://energyvanguard.flywheelsites.com/?blog_post=got-manual-j-dont-assume-its-correct#comment-436 Nail-on-the-Head, Allison !!!
Nail-on-the-Head, Allison !!! Am afraid it will take a few moisture damage lawsuits against HVAC Contractors before they start getting it right (there are a few that know & care). The mark-up on equipment is usually between 250 – 300%…the more capacity, the more $$$ in their pockets. On the Coast here, rule of thumb is closer to 450 – 500 sq’/ton, even in new construction.  
 
Recently, Georgia Tech, in cooperation with The Turner Foundation, completed a study showing that by upgrading envelope air sealing techniques and window quality, ability to downsize capacity covered the costs. That needs to get out to the public.

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