Placement of Ducts and HVAC Systems in Conditioned Space ... · Building Science Corporation...
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Building Science Corporation Building Science Corporation www.buildingscience.com Placement of Ducts and HVAC Systems in Conditioned Space: An Overview EEBA Excellence in Building Conference October 24, 2001 PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 1 of 25
Transcript of Placement of Ducts and HVAC Systems in Conditioned Space ... · Building Science Corporation...
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Placement of Ducts and HVAC Systems in Conditioned Space:
An Overview
EEBA Excellence in Building Conference
October 24, 2001
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 1 of 25
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•Energy savings from reducing forced air exchange due to duct leakage
Why move ducts inside?
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 2 of 25
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•Reduce pressure imbalance problems
•Energy savings from less hostile duct environment
•Reduced heating & cooling loads—equipment downsizing
Why move ducts inside? (continued)
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 3 of 25
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•Basement + interior walls
•Conditioned crawl space + interior walls
•Dropped HVAC coffer
•Raised HVAC coffer
•Floor truss space (two-story plans)
•Unvented roof system
•Warning: Combustion Appliance Location
Duct Location Options
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 4 of 25
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Basement Duct System
•Standard system in many regions
•Second floor ducts must be in first floor interior walls or trunks off of floor system—not in attic.
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 5 of 25
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Conditioned Crawl Space
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 6 of 25
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Conditioned Crawl Space Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 7 of 25
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Conditioned Crawl Space Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 8 of 25
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Dropped Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 9 of 25
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Dropped Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 10 of 25
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Dropped Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 11 of 25
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Raised Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 12 of 25
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Raised Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 13 of 25
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Raised Ceiling Coffer Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 14 of 25
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Engineered Floor Truss Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 15 of 25
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Engineered Floor Truss Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 16 of 25
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Engineered Floor Truss Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 17 of 25
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Engineered Floor Truss Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 18 of 25
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Engineered Floor Truss Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 19 of 25
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Unvented Roof Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 20 of 25
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Unvented Roof Duct System
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 21 of 25
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Unvented Roof Ducts: Energy Comparisons
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 22 of 25
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Unvented Roof: Air Sealing Locations
Garage kneewalls
Porch kneewalls
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 23 of 25
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Unvented Roof: Construction Detail
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 24 of 25
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Unvented Roof: Construction Detail
PR-0111: Placement of Ducts and HVAC Systems in Conditioned Space—An Overview Page 25 of 25
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