If Someone Ask You, “How Do You Know Your Duct Designs Work”, What Would You Tell Them?
I recently read an article by David Richardson from the National Comfort Institute where he said, “If you want to start a fight among HVAC contractors, ask them how to design a duct system. On one side of the discussion, you’ll have those who follow duct design rules of thumb that came from previous generations. Those “rules” probably came from their dad or someone else who taught them as they came up in the trade. To this group, disrespecting those rules is like spitting in the face of tradition and on the same level as insulting their mom…On the other side is the duct design die-hards who follow industry-approved standards.”
- June 2020 (2)
The current edition of the NFPA 54 Code Book used by the State of New Hampshire is the 2018 edition.
The current edition of NFPA 58 (LP) Code Book used by the State of New Hampshire is the 2017 edition.
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Simple Things to Do During Installation Of High Efficiency Furnaces to Prevent Condensate Build up and Callbacks