Christopher Cadwell's Blog Posts Tagged 'AC' (4)

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

Selling AC Retrofits - Notes from the field.

First I talk of safety. I mention old furnaces and CO possibilities, etc. This will usually make them sour up a bit because it is slightly a sales pitch.

Then I usually talk to homeowners about the hot and cold rooms. This is a big button and an easy one to push and get them talking. This adds to the sourness but gains…
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Added by Christopher Cadwell on October 25, 2011 at 10:30pm — 1 Comment

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Hal Skinner added a discussion to the group HVAC
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Old ductwork efficiency file

Allison,found the attached file on ductwork efficiency on an old CD I made.  Its definitely dated. …See More
14 minutes ago
Hal Skinner posted a discussion

What an RCC can do with no R- insulation in the walls.

I have had a handful of folks on this forum tell me, in effect,  that an RCC can do a very good job…See More
1 hour ago
Trip Smith posted a discussion

Where to spend my marketing dollars?

Hey everyone, I'm a new home performance company owner. (Originally a general contractor who is…See More
2 hours ago
Profile IconManuel Gutierrez, Chris Baker, Sharon Cannizzo and 1 more joined Home Energy Pros
4 hours ago
Kevin Jordan replied to Kevin Jordan's discussion air infiltration total
"thanks.  but it was just an illustration of a hole 2x2 with money going out of that…"
6 hours ago
Tom White posted a video

Adaptive Thermostats Demonstration Results Installed at UC Davis 6/26/2014

In buildings where variations in occupancy would fool a standard programmable thermostat, new adaptive thermostats have potential for significant energy savi...
9 hours ago
Hal Skinner's discussion was featured

Has Lead Based Paint ever stopped you on an energy upgrade?

In the process of determining all the different things that a home energy rater suggests to a…See More
9 hours ago
George Kopf's 2 discussions were featured
9 hours ago

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