David Marrs
  • Male
  • Ocala, FL
  • United States
Share on Facebook Share on Facebook Share
  • Featured Blogs
  • Discussions
  • Events
  • Groups (1)
  • Photos
  • Photo Albums
  • Videos

David Marrs's Groups

 

David Marrs's Page

Latest Activity

David Marrs posted an event

Beginner Wrightsoft Manual J & D Interactive Web Class at Internet

July 8, 2014 from 9am to 6pm
We will review over the practices of completing a basic heat load (Manual J) & Duct Layout/Duct Calculations (Manual D) using Wrightsoft software. We will design approximately 3-5 small houses.Class is limited to 25 students.To sign up visit http://ManualJ.biz/ ,click on Training and select the date that you would like to attend the class.Class consists of a total of 8 hours of class time with (2) 15 minute Breaks…See More
Jun 11, 2014
David Marrs joined Kyle Brown's group
Thumbnail

Wrightsoft - Manual J / Manual D

If you use Wrightsoft to calculate loads or design ducts, you likely have questions.  Get answers from veteran program users and peers here!
Jun 9, 2014
Diane Chojnowski left a comment for David Marrs
"Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you! Don't…"
Sep 27, 2013
David Marrs is now a member of Home Energy Pros
Sep 4, 2013

Profile Information

Company
Marrs HVAC Services, LLC
Professional Certification
Class 3 & Class 2 Bers Energy Rater
Professional Interests
HVAC Design. Manual J, D, S, N Duct layouts, Material lists, Estimating.
Website URL
http://www.ManualJ.biz
Facebook Page
facebook.com/cadofocalallc

Comment Wall (1 comment)

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

At 2:36am on September 27, 2013, Diane Chojnowski said…

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

Don't forget to add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

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.  Home Energy Pros is sponsored by the Better Buildings Residential Network.

Latest Activity

Laura Palombi joined Norm Bourassa's group
Thumbnail

Multifamily Buildings

For too long there has been relatively little EE focus on multifamily, but some new programs have…See More
4 hours ago
Profile IconJerrad Pierce, tracylee, Nevada Heating and 4 more joined Home Energy Pros
22 hours ago
Shawn Weeks posted a blog post
23 hours ago
Kirsten Richnavsky's discussion was featured

New BPI Standard for Conducting Energy Audits Published as an ANSI Standard!

The Standard Practice for Basic Analysis of Buildings defines the minimum criteria and specific…See More
yesterday
Daniel Beauchemin's photo was featured

Residential installation of a ThermoDrain TD342B

DWHR HERS Index Score Credit Calculation ProcedureUntil such time that DWHR system calculations…
yesterday
Tom White's 2 videos were featured
yesterday
Corbett Lunsford's video was featured

New Home FAIL: Infrared Secrets Revealed

Building forensics guru Corbett Lunsford can show you what's behind the walls of any house- or are you afraid to find out? Don't be! It's all generally fixab...
yesterday
Jose Macho's blog post was featured

Why Don't Homeowners Spend Money on Energy Saving Upgrades??? Blame "Cognitive Biases"

A great transcript from a recent NPR "Morning Edition" broadcast about a recent California survey…See More
yesterday

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service