HRV vs ERV: Sensible vs Total Energy Recovery
An HRV transfers only heat; an ERV also transfers moisture. Understand when each protects comfort, indoor air quality, and HVAC load.
Read article →Selecting the Right Face Velocity
Balancing effectiveness, pressure drop, and core size.
Read article →Heat Recovery and Building Energy Balance
Where recovery sits in the whole-building energy equation.
Read article →Understanding Heat Exchanger Pressure Drop
Why the core's resistance is part of the energy balance.
Read article →Measure Heat Recovery Performance On-Site
The field procedure to verify a real installation.
Read article →Calculating Heat Exchanger Effectiveness by Hand
A worked example of the effectiveness formula.
Read article →How to Read a Psychrometric Chart
Turning moist-air states into a recovery selection.
Read article →Why Counterflow Outperforms Crossflow
The geometric reason counterflow recovers more energy.
Read article →Psychrometrics for Heat Recovery Engineers
The moist-air properties that decide recovery performance.
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