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

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Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"I don't know what it stands for. See RAB.com"
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Jim Tenhundfeld replied to Jim Tenhundfeld's discussion LED's and motion sensors
"That makes sense since the same thing happened with dimmable CFL's.  I have never heard…"
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Brad Cook replied to Jim Tenhundfeld's discussion LED's and motion sensors
"My first thought is whether the motion sensor and/or the LED lamp is a cheap one. I had so many…"
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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
Friday
Home Energy Magazine posted a blog post
Friday
Jim Tenhundfeld posted a discussion

LED's and motion sensors

When completing an audit, a customer told me that when he installed a LED lamp in his outdoor…See More
Friday
Barbara Smith posted videos
Thursday
CharlieK posted a discussion

Eco-Cottage Program Applauded By Housing Groups, Suppliers & Lenders

AmeriSus a leading player in the eco-kit home business kicked off a new program on MLK-day which…See More
Thursday

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