Hi All--
This is my first time posting.
My home is approximately 3 years old, new construction, 3400 sf total, 2900 sf above grade with 600 sf finished in the basement. The HVAC system is a 3 zone system. Ever since moving in we have had issues with our HVAC system and the comfort in different floors/rooms.
One of them main issues I am realizing now is I believe we have inadequate return air supply in the home, and there are clearly pressure differences/cool spots in the house as evidenced by the humming/whistling from the duct work when the system is running and most noticeably in the upstairs where all the bedrooms are located. The first floor which 1200 sf has 3 return floor registers (6x12), one in the dining room, one in the home office which are both located in the front of the house and only 1 in the Family/kitchen/breakfast nook area. On the supply side there are 10 supply registers on the 1st floor.
Our second floor where we most consistently notice temperature differences between rooms have a singular return floor grill in each bedroom, of note the master suite (bathroom, bedroom, closet) has 4 supply registers and only 1 6"x10" floor return.
My thinking is to install a transfer grill in the master bedroom to the adjacent unconditioned upstairs hallway, and another in the family room adjacent to the stairwell leading to the basement.
I can provide more details/layout of our home but would be interested to hear anyone's experience with these transfer grills. Thanks in advance for your input!
This is my first time posting.
My home is approximately 3 years old, new construction, 3400 sf total, 2900 sf above grade with 600 sf finished in the basement. The HVAC system is a 3 zone system. Ever since moving in we have had issues with our HVAC system and the comfort in different floors/rooms.
One of them main issues I am realizing now is I believe we have inadequate return air supply in the home, and there are clearly pressure differences/cool spots in the house as evidenced by the humming/whistling from the duct work when the system is running and most noticeably in the upstairs where all the bedrooms are located. The first floor which 1200 sf has 3 return floor registers (6x12), one in the dining room, one in the home office which are both located in the front of the house and only 1 in the Family/kitchen/breakfast nook area. On the supply side there are 10 supply registers on the 1st floor.
Our second floor where we most consistently notice temperature differences between rooms have a singular return floor grill in each bedroom, of note the master suite (bathroom, bedroom, closet) has 4 supply registers and only 1 6"x10" floor return.
My thinking is to install a transfer grill in the master bedroom to the adjacent unconditioned upstairs hallway, and another in the family room adjacent to the stairwell leading to the basement.
I can provide more details/layout of our home but would be interested to hear anyone's experience with these transfer grills. Thanks in advance for your input!
source https://hvac-talk.com/vbb/threads/2235570-Transfer-Grills-to-aid-in-inadequate-return-air-in-new-construction-home?goto=newpost
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