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This category provides guidance for evaluating and optimizing HVAC system types and sizing.
HVAC Design 101
Plant Sizing Tab - Heating
Plant Sizing Tab - Cooling
What Calculation(s) is/are taking place?!
Parametric Software Shading
What is Sefaira Systems (~2 mins video)
How to Use Sefaira Systems (~6 mins video)
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Advanced HVAC Design
What "warmup" and "cooldown" loads mean
How Temperature reset works in Central Air Systems
HVAC Operation with Schedules and Days
How to study an option with multiple HVAC systems using Group
Use Case - Exploring Zone Sizing and Problem Zones
Use Case - Keep your Cooling load under 100W/m2 in every zone
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Natural Ventilation and Thermal Comfort
Why is it so hard to pass ASHRAE 55 (PMV ±0.5)?
ASHRAE 55 interpretation in Sefaira
Mechanical Ventilation Configuration Presets
Why do we have a "Tolerance" range in Comfort?
Why does my conditioned building fail dry bulb comfort?
Introduction to Thermal Comfort in Sefaira
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Average Solar Cooling Load Thresholds - Sefaira and Energy Plus
List of EnergyPlus mysteries and our explanations for them
Additional analysis with Sefaira's Energy Plus output
How to Convert an .idf file from Sefaira for use in EnergyPlus