Christopher Cadwell's Blog Posts Tagged 'Efficient' (3)

HVAC and DC Fan Motors

Here are links to my latest posts on how these motors can be used for retrofitting in existing HVAC systems.

HVAC Savings Upgrades – Cutting Fan Watts In Half or More 

In this post I cover how the savings can be dramatic, and the most important part is to get duct pressures low.…

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Added by Christopher Cadwell on April 19, 2012 at 6:14am — 2 Comments

Notable Results in AC Training

The final survey results of the second week of students in the High Performance HVAC classes.
Here are some notable results of what the students felt that they got out of the course.
  • How to reduce # of registers while improving comfort. 
  • Importance of velocity - amount needed to properly mix air.
  • How to select register types to control noise and performance. 
  • Whole house as…
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Added by Christopher Cadwell on November 27, 2011 at 9:00pm — No Comments

Super Efficient HVAC is Easy

Attending a week long class where veteran trainer Rick Chitwood is moderator has been entertaining and joyful. In the class which is inside a house that is being retrofit completely we are now designing and installing a super efficient HVAC system.…



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Added by Christopher Cadwell on November 17, 2011 at 9:30pm — 9 Comments

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John Nicholas commented on John Nicholas's blog post Indoor Air - How do you measure if it is Healthy?
"Tom,   Here it is!"
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John Nicholas commented on John Nicholas's blog post Indoor Air - How do you measure if it is Healthy?
"The issue of Indoor Air Quality in a home comes up very regularly for a Home Energy Auditor. People…"
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tedkidd replied to Michael D'Arcy's discussion Small video we created to promote Home Performance
"Great! So those are results measured a year after work, not modeled? That makes you a rare…"
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The ABCs of Snowmelting

Read this great article about snowmelting systems …See More
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Rich Manning commented on Amber Vignieri's blog post Elevate Energy Mythbusters: Windows & Attics Edition
"Amber, Good blog, but heat does not rise. Heat always goes to cold. Hot air rises! "
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
12 hours ago
Jan Green replied to Jan Green's discussion Retrofitting a 1979 Home to NAHB Silver or Gold - Pending Cert
"Nice meeting you as well Tom!  You're right! My last 2 electric bills have been $39 and…"
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