Hans Joachim Preiss's Discussions (18)

Discussions Replied To (18) Replies Latest Activity

"Dan, Let me attempt to compare apples with apples: My solar thermal system is locate…"

Hans Joachim Preiss replied Apr 29 to Net Zero Energy Hot Water

18 May 12
Reply by Tom Mallard

"I use the combination of solar PV and heatpump water heaters in the vast majority of…"

Hans Joachim Preiss replied Apr 29 to Net Zero Energy Hot Water

18 May 12
Reply by Tom Mallard

"I personally don't have an answer for you and would have to research the web myself.…"

Hans Joachim Preiss replied Nov 20, 2015 to Energy Efficient Entry Door options out there?

25 Nov 28, 2015
Reply by Tauran Ivall

"Most European hardware engages on all sides pulling the door into the gaskets evenly…"

Hans Joachim Preiss replied Nov 12, 2015 to Energy Efficient Entry Door options out there?

25 Nov 28, 2015
Reply by Tauran Ivall

"I don't perform any audits myself, but I came across this relatively new tool that m…"

Hans Joachim Preiss replied Sep 17, 2015 to What is the best energy auditing software?

18 Apr 12
Reply by Ben Meyer

"A hole dip tube would only play a role when hot water is drawn and cold water enters…"

Hans Joachim Preiss replied Sep 5, 2015 to Does calcification affect electric water heater aquastat temperature sensor performance?

19 Sep 24, 2015
Reply by tedkidd

"Rod, Because the tank is not overheating, the behavior is either normal for this tan…"

Hans Joachim Preiss replied Aug 27, 2015 to Does calcification affect electric water heater aquastat temperature sensor performance?

19 Sep 24, 2015
Reply by tedkidd

"Calcification happens on the heating elements because hardness causing minerals are…"

Hans Joachim Preiss replied Aug 27, 2015 to Does calcification affect electric water heater aquastat temperature sensor performance?

19 Sep 24, 2015
Reply by tedkidd

"Good discussion. I came across this comprehensive presentation by Gas Consultants on…"

Hans Joachim Preiss replied Jul 2, 2015 to Does altitude affect AFUE? or just the input/output BTUs?

25 Jul 15, 2015
Reply by Morgan M Audetat

"Rod, Correct me if I am wrong, but you're saying "AFUE" but really mean "actual effi…"

Hans Joachim Preiss replied Jun 26, 2015 to Does altitude affect AFUE? or just the input/output BTUs?

25 Jul 15, 2015
Reply by Morgan M Audetat

RSS

Videos

  • Add Videos
  • View All

Twitter

Latest Activity

Profile IconElaine Williamson and kevin mack joined Home Energy Pros
3 hours ago
Eric Kjelshus replied to Beverly Lerch's discussion Fireplace drafts
"A brick chimney will take some 70,000 BTU's to heat up to draft on a fireplace.   A…"
11 hours ago
Ed Voytovich replied to Beverly Lerch's discussion Fireplace drafts
"Our solution was to install a Lopi Answer wood burning insert that vents directly through a metal…"
18 hours ago
Jim Gunshinan's blog post was featured

A Healthy Home and a Healthy Bottom Line

There has been a lot of interest of late in the weatherization and broader home performance…See More
yesterday
Jonathan Beers commented on Home Energy Magazine's blog post Natural Gas is Becoming Less Attractive
"The carbon intensity of electricity use (lbs. of CO2/MWh) varies a lot from region to region. For…"
yesterday
Diane Chojnowski posted events
yesterday
Home Energy Magazine posted a blog post

Natural Gas is Becoming Less Attractive

The United States and Canada have been fortunate to have access to natural gas for space heating,…See More
yesterday
Jim Gunshinan posted a blog post

A Healthy Home and a Healthy Bottom Line

There has been a lot of interest of late in the weatherization and broader home performance…See More
yesterday

© 2016   Created by Lawrence Berkeley National Laboratory.   Powered by

Badges  |  Report an Issue  |  Terms of Service