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We’re designing a new home with electric heat pump. We would like to have both the delivery and returns in soffits mounted high on the 12’wall.
What is in mind is a return duct about 6″ x 18″ flush to the ceiling, and hung to that the 16″ x 16″ (or whatever sizes are required) supply ducts.
Is this a practical plan?
We’re in a hot area – Arizona desert. High summer temps as great as 118º or so, winter lows possibly 28º to 24º. The 1800 ft. living space will use a single 4½ ton unit.
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Don,
Soffits are under overhangs outside the exterior walls; bulkheads are dropped ceiling areas such as above kitchen cabinets. I hope you're taking about running the ducts through bulkheads.
Bulkheads are commonly used in concealing ductwork. For best results, however, have your return grilles low (for cooling). If possible, plan on having both high(cooling season) and low(heating season) diffusers.
For further verification, feel free to check with the US DOE Energy Efficiency & Renewable Energy Clearinghouse, (800) 363-3732.
Cameron
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We're designing a new home with electric heat pump. We would like to have both the delivery and returns in soffits mounted high on the 12'wall.
What is in mind is a return duct about 6" x 18" flush to the ceiling, and hung to that the 16" x 16" (or whatever sizes are required) supply ducts.
Is this a practical plan?
We're in a hot area - Arizona desert. High summer temps as great as 118º or so, winter lows possibly 28º to 24º. The 1800 ft. living space will use a single 4½ ton unit.