Is My Furnace Suitable To My Home Size? (poor Airflow) - HVAC - Page 2 - DIY Chatroom Home Improvement Forum

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Old 06-01-2009, 09:17 AM   #16
An old Tradesmen
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The 14" may be fine with 3 of the current supplies switched to a new supply trunk.
Or, it could be that the slowr air flow in the existing 14" will make those remaining supplies lag behind in cooling and heating.

I can't tell from here, if those remaining 4 supplies should be moving 250CFM or 460CFM.

Thats why on site testing of static is important. It can eliminate/reduce the guess work. And prevent having to pay for repairs/alterations twice.

The supplies should be check for how much air they are currently moving.



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