HVAC Design
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Common Mechanical Room Obstructions
When designing a new house, give thought to where the ducts will go and exactly how they will get there
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Oversized HVAC Equipment
Manual J Load calculations can be manipulated to suggest heating and cooling demands that are said to require inappropriately sized systems
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Energy-Efficient Building Enclosures and Improperly Detailed Ducts
Code requirements for blower-door tests in new construction have led to better building envelopes but ductwork is still overlooked
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A Better Name for Friction Rate
Duct design is confusing enough already without having to explain why a higher friction rate is better
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There’s More to HVAC Design Than Sizing
Yes, size matters for for designing and sizing an HVAC system, but how the conditioned air is distributed matters more
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HVAC Design Requirements in the International Building Codes
A look at what the codes actually require for load calculations and duct design
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A 1950s Cape With Many Needs
A first-time homeowner wonders where to start with energy upgrades
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Door Undercuts for Return Air
You don’t always need to install individual returns, transfer grilles, or jumper ducts
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The Difficulties of Third-Party HVAC Design
How do we get everyone on the same page?
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The Joy of Flex
A recap of my Building Science Summer Camp presentation