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 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…
Continue

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.…



Continue

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…
Continue

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

Charlie Hewitt posted a blog post

Residential Electric Load Disaggregation

“What gets measured gets managed” is a quote often attributed to the venerable management expert…See More
6 hours ago
Kurt Albershardt replied to Larry Schaffert's discussion How to correctly insulate exterior wall in a 1900 house?
"Balloon framed houses make for easy upgrades IME.  We cover the open bays from the sill plate…"
7 hours ago
Kurt Albershardt replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"There are a number of approaches that can work depending on the specifics of your situation. What…"
7 hours ago
Bob Mariani joined allen p tanner's group
Thumbnail

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
17 hours ago
Bob Mariani replied to William Parlapiano's discussion Equipment for Sale Updated April 9, 2015 in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"I would be interested in a package deal for the items marked as "Available"  Email…"
17 hours ago
Steven Lewis replied to William Fisher's discussion Can tankless water heaters provide hot water even when the groundwater is fairly cold?
"Look at reducing the ambient humidity in the home.  The dew point is the key to the…"
Friday
Olivia Taylor posted blog posts
Friday
norman farwell replied to Bryan Pringle's discussion Dense packed cellulose in basement?
"Ha, we're on the same wavelength.  That's the big question--I'm still thinking…"
Thursday

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service