Whole House Energy Recovery Ventilators Explained by Panasonic

As humans, we need clean, fresh air to live. Keeping indoor air healthy is a challenge given that we bring in pollutants through mechanical and even natural ventilation, and because even as we breathe and through our regular activities, we use up the oxygen in our space and generate additional pollutants as well.

How we bring clean air into our homes and buildings, and how we maintain this air, is especially important given a range of issues brought to the forefront recently, including wildfires and other pollution, and of course the COVID-19 pandemic. In addition, we’re spending even more time indoors and at home in particular, and good indoor air quality is essential to our health as well as for maintaining our furnishings.

An ERV is part of a complex HVAC system that manages air temperature, humidity and particulates in our built environment. An ERV is energy-efficient ventilation equipment that brings fresh air into the home while exhausting some of that “bad” or stale air out, in equal measure.

We’d like to thank Ken Nelson at Panasonic for his terrific explanation of how ERVs work and for introducing us to the features and benefits of the Intelli-Balance 200 as well. Have you been wondering what an ERV is and how it really works, as in, how exactly the water vapor moves around in that enthalpic (or magic) core?

Ken explains how this magic works and why this balanced design is the preferred fresh air ventilation method with indoor air quality experts. To view a written summary of this video, visit Rate It Green:

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Panasonic is also a Rate It Green member, and you can see all of their content and articles here:

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00:00 Introduction to balanced ventilation
00:56 Panasonic's Energy Recovery Ventilators (ERV)
01:26 Common ventilation terms to know
02:58 How particles move in the air
04:07 More terms to know
06:35 What is an Energy Recovery Ventilator, or ERV?
08:36 Pros and Cons of ERV's
10:09 Difference between HRV and ERV
11:08 How an ERV works
13:19 Energy transfer through an ERV capillary pathway
14:01 Latent and Sensible Energy in ERV's
16:06 Sensible recovery efficiency (SRE) and total recovery (TRE)
17:16 Maintaining Supply Air with a filter for good IAQ
19:43 The Intelli-Balance 200 key features
24:47 Intelli-Balance 200 installation
25:53 Intelli-Balance 200 controls
30:10 Intelli-Balance 200 demonstration
32:27 ERV and HRV Competitive benchmarking
34:35 ERV Size Comparison
35:17 Intelli-Balance 200 nomenclature
36:24 Contractor Intelli-Balance 200 ERV "take-a-ways"...
37:47 Whisper Comfort ERV
38:52 Ventilation codes by state
42:09 Q&A What is the "payback" for an ERV?
47:39 Q&A An ERV is NOT a dehumidifier
53:45 Q&A Why do we need to have controlled fresh air?
1:00:34 Other factors that need to be addressed when designing for ERV

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