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| We have a system that is about 350 sq. ft too small for our house. We have lots of 98 degree days or more and it just doesnt keep up. We have gotten a few estimates but it is a 10000 or more change. One guy suggested we close off the duct work that supplies our finished room over the garage because the duct work is too big for it anyway an we have to use a window unit to cool it anyway, but he didn't say how to do it. Anyone k ow what that entails ? |
Follow-Up Postings:
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- Posted by energy_rater_la (My Page) on Sat, Jun 30, 12 at 18:55
| what size duct serves the room over the garage? what is the capacity of the hvac system? can the ducts in use handle the additional air flow or are they undersized for more air flow? there is more to it than just disconneting the guy that suggested this..he is hvac guy? best of luck. |
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| You could do it by simply blocking the registers in the room. If the duct feeding the room as a damper control you could close it to block the air. Have you looked into adding more insulation to your attic? The increase in insulation would lower the heat load and allow the AC to keep up. |
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- Posted by energy_rater_la (My Page) on Sun, Jul 1, 12 at 11:30
| if the damper is at the plenum you would be putting the addtional air back into the plenum to be distributed through other ducts. which may not be sized to handle additional air. just shutting the register doesn't put the there is a reason that there are manuals for adding insulation on the attic floor does nothing putting foam/foil sheathing on exterior of walls foam sheathing will air seal when installed and caulked rooms over garages are surrounded by hot attic best of luck. |
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