Christopher Cadwell's Blog Posts Tagged 'HVAC' (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.…

Continue

Added by Christopher Cadwell on April 19, 2012 at 9:14am — 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…
Continue

Added by Christopher Cadwell on November 28, 2011 at 12:00am — 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.…



Continue

Added by Christopher Cadwell on November 18, 2011 at 12:30am — 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…
Continue

Added by Christopher Cadwell on October 26, 2011 at 1:30am — 1 Comment

Latest Activity

Profile IconSean Wiens and David Butler joined Chris Laumer-Giddens's group
Thumbnail

Energy Efficient Design

Energy efficiency starts at the drafting table...How architects and designers can help buildings…See More
2 hours ago
Profile IconSean Wiens and David Butler joined Mark Richardson's group
Thumbnail

Renewable Energy

This group will focus on the issues associated with incorporating renewable energy sources like…See More
2 hours ago
Al Tibbs posted photos
3 hours ago
Al Tibbs replied to Bob Krell's discussion What Do You Do When You Find Suspected Mold? in the group Healthy Indoors (IAQ)
"In any case where there is visible mold present, I would begin with a thorough VISUAL assessment of…"
3 hours ago
Al Tibbs joined Bob Krell's group
Thumbnail

Healthy Indoors (IAQ)

The Healthy Indoors group is focused on indoor air quality (IAQ), mold, moisture control, radon,…See More
4 hours ago
David Byrnes posted a blog post

Strategies for Hiring and Interviewing for Home Performance Professionals

Hire slow and fire fast.  It’s a phrase that experienced managers and human resources professionals…See More
4 hours ago
David Butler posted discussions
5 hours ago
David Butler replied to Don Fugler's discussion joining ducts in the group HVAC
"Static pressure drop through a straight length of pipe is a function of friction rate, and friction…"
9 hours ago

Photos

  • Add Photos
  • View All

© 2017   Created by Home Performance Coalition (HPC)   Powered by

Badges  |  Report an Issue  |  Terms of Service