How to populate Manual J lookup tables

Maine_Sawyer| Posted inGeneral QuestionsonFebruary 19, 2022 09:04pm

Hi Folks,

Can someone point me to the data I need to populate the Manual J lookup tables (Walls, Glass, Doors, etc..)?

Thanks,
Larry

Answer

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DCContrarian|Feb 20, 2022 09:30am|#1

https://www.amazon.com/gp/product/1892765268/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Maine_Sawyer|2022年2月21日09:49am|#2

Thanks DC...I guess I didn't really ask the right question...I don't need to populate every possible option..only need to model my intended construction options..
So I think my real question is this:
I'm only concerned calculating heating load so I believe that for my walls, ceiling & slab Manual J only needs to know overall U values for theses components. So I should be able to calculate these based upon my assembly type and then populate the lookup table accordingly.
For windows/doors I should be able to use manufactures U data, right?

Thanks,
Larry