Dennis Heidner
  • Kirkland, WA
  • United States
Share on Facebook Share on Facebook Share

Dennis Heidner's Friends

  • Quinn Korzeniecki
  • Curt Kinder
  • Chris Hunt

Dennis Heidner's Groups

 

Dennis Heidner's Page

Latest Activity

Dennis Heidner commented on Home Energy Magazine's blog post My Apartment in Tokyo
"Alan,   Were you able to make observations about number of lightbulbs, sizes and types?   Are they moving away from incandescent,  halogens and CFL's to LEDs? Window coatings/treatments?  Single pane, double pane?…"
Jun 6
Dennis Heidner replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"Dan, Solar PV and solar H2O work in northern climates...They can still provide the desired goal in cool areas.  But the Heat Pump Hot Water Heater option may be a problem if you are trying to use one in a climate zone 5 or above.  It may…"
Apr 28
Dennis Heidner replied to Dan Antonioli's discussion Net Zero Energy Hot Water
"What climate zone are you in?  Where would the hot water heater be set?  Northern climates with a heat pump in a cool/cold room can be counter productive.   Place the same HPHW inside a house in a hot humid climate and you may see…"
Apr 28
Dennis Heidner replied to Dave Hahn's discussion Airflow "through" a building or "beneath" the exterior cladding
"The last picture with fiber cement - looks like the pattern you might see from water. Is the fiber cement board on firring?  Blind nailing?  Did they paint the fiber board after installation and seal up the overlapping --- leaving only the…"
Apr 7
Dennis Heidner replied to Tim Kendzia's discussion Cooling effect from solar panels
"We have PV panels on our roof,  we tracked the panel temps, microinverter temps,  and attic temps for a couple of years.  We did see a definite reduction in attic temps under the panels.  Five degrees F is reasonable.  But…"
Apr 7
Dennis Heidner replied to Bruce Navin's discussion LED's interfering with Garage Door Openers
"So this is an old post... with some new comments on it.   The problem is not likely coming from the LED bulbs - alone.  It probably is a combination of old analog garage door openers and general RF noise in the neighborhood... with the…"
Dec 3, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"For Rod, second part... When I see really large electric services... my first reaction my be "what a waste",  but when I stop and catch my breath and take the time to ask why... something more useful is generally discovered.   My…"
Nov 29, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"Rod,  I did see earlier that you had calculated the loads.  The key is even though a consumer device may not have the accuracy... you can still use it to find the "phantom loads".   You need to use that spread sheet of…"
Nov 29, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"Note to readers 0.5A instead of 5A for reading with A/D.... the edit to correct that didn't apparently take because of timeouts... likewise  0.1A instead of 1Amp.. "
Nov 28, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"Rod, I have some of the CT's that you referenced in the openenergymonitor system.  They are at "best" 3% devices...  the openenergysystem is likely to have system error/uncertainty in/around 10%.   The utility meters…"
Nov 28, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"1200A service... really?  or did you mean 200A.  That size service would likely result in its own large transformer (probably ground mounted)... and likely three phase to home. The electrician likely did the audio/video system as well as a…"
Nov 28, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"yes,  I'd think even for a very large house / residence that you'd want to look carefully at the loads and decide which of the motors you want to put on timers and upgrade to more efficient motors ASAP. Besides well pump, if the…"
Nov 28, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"Yup,  but it also looks like for the tariffs above residential services that they include riders for KVA... if the right conditions are…"
Nov 27, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"It's not just the CT's that you need to worry about.   The CT will pick up the current and provide a voltage across a "load" resistor that can be measured.   The system accuracy of the external measurement is dependent…"
Nov 27, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"I think you met the reply for Rod Frost."
Nov 27, 2015
Dennis Heidner replied to Rodney Fox's discussion Utility Meter Accuracy
"I have TEDS,  they ARE NOT REVENUE grade.  The 1000's and 5000's have serious problems in which they can under report or over report (randomly)... they are really only useful for getting a rough feel.  And I've been…"
Nov 23, 2015

Profile Information

Company
Rextorgroup
Professional Interests
Energy efficiency, building envelop, renewables, building modeling

Comment Wall (1 comment)

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

Join Home Energy Pros

At 12:25pm on March 21, 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 upload your profile photo. And add your location on our Member Map!


Thanks!
Diane, HEP Moderator

 
 
 

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Amber Vignieri posted a blog post
8 hours ago
Evan Mills posted a blog post

Looking Back and Looking Forward: Home Energy Pros at 5 and 5000

Over the past five years, the Home Energy Pros social network has grown from a twinkle in our eyes…See More
9 hours ago
tedkidd replied to Diane Chojnowski's discussion Poll: How confident do you feel about the future of home performance?
"Thank you for sharing this trend! Full disclosure, I did NOT ask Bob to post that! If you have 2…"
9 hours ago
Bob Blanchette replied to Diane Chojnowski's discussion Poll: How confident do you feel about the future of home performance?
"I see fixed monthly grid charges continuing to increase while cost per therm/kwh/gallon remain…"
9 hours ago
Quinn Korzeniecki posted a discussion

Vent Cap Systems and SENSIT Technologies Products Added to BPI Product List

The Building Performance Institute, Inc. (BPI) has recognized four new products in its …See More
12 hours ago
Simon joined Diane Chojnowski's group
Thumbnail

Online Training

Online training coursesIf you provide ongoing online training for home performance or…See More
yesterday
Simon added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
Thumbnail

Wanted - Blower and door frame kit for Minneapolis system

Hi everyone,I'm new to this line of work and have bought some equipment (Minneapolis blower door…See More
yesterday
Simon replied to Steve Mann's discussion TEC Blower Door Frame in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hi, I'm interested, but could you send to UK?,I'd pay shipping of course. My email is :-…"
yesterday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service