Ducting Systems and Air Ventilation - Register/Return sizes?

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mgh-pa
11-02-09, 08:22 AM
I'm going to be adding two registers and two returns to our main floor (~840 sq. ft open). It's a 42' x 20' room. These are going to be for woodstove heat in the basement. The basement ceiling has fiberglass batting, and MDF sheeting, so the heat isn't getting to the main floor like I would like. Any recommendations as to what size registers/returns I should use for this floor size?

GRIMKNOTME
11-02-09, 08:44 AM
http://forum.doityourself.com/ducting-systems-air-ventilation/406466-duct-between-basement-ceiling-kitchen-floor.html
mgh-pa
11-02-09, 09:05 AM
http://forum.doityourself.com/ducting-systems-air-ventilation/406466-duct-between-basement-ceiling-kitchen-floor.html

Thanks, the post is a little hard to decipher, but still not sure what that has to do with what size register/return I need? Should I just stick with a standard 4x10 or 4x12? I know how to locate where I need to put them, I'm just curious as to what size is recommended for adequate convection.

GRIMKNOTME
11-02-09, 03:56 PM
With heat rising from not forced air wont make much difference but in bath prob 4x10 the rest 4x12 with 2 4x12 ina larger room you can cut one off at register if needed
mgh-pa
11-02-09, 04:50 PM
With heat rising from not forced air wont make much difference but in bath prob 4x10 the rest 4x12 with 2 4x12 ina larger room you can cut one off at register if needed

Thanks for the information!