Sue Davis
  • Ramstein, Rheinland Pfalz
  • Germany
Share on Facebook Share on Facebook Share
  • Featured Blogs
  • Discussions (5)
  • Events
  • Groups
  • Photos
  • Photo Albums
  • Videos

Sue Davis's Discussions

Heat Recovery Ventilator - Iced Up
13 Replies

Greetings.  This is my first post/question - many more to follow, I'm sure. I live in a rental house that has radiant floor heat and a heat recovery ventilator that pulls warm, moist air out of the…Continue

Started this discussion. Last reply by tedkidd Feb 19, 2012.

 

Sue Davis's Page

Latest Activity

Michael D'Orazio left a comment for Sue Davis
"Hello Sue, I am a member of Home Energy Pro's site and have found it to be a great resource.  I have been around the energy industry and have new social media platform focusing on energy conservation: www.greenplug.nu Im reaching out ot…"
Mar 6, 2012
tedkidd replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"It really becomes a what house, what occupancy, what climate question. I like ERVs, but it really depends. What do you want to do with latent heat, expell, keep out, or keep in? You might want both cores, switching between summer and…"
Feb 19, 2012
Sean Lintow Sr replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"in general, I would say no based on the climate there, but Martin Holliday did a pretty good write up on this issue here: http://www.greenbuildingadvisor.com/blogs/dept/musings/hrv-or-erv"
Feb 19, 2012
Gary Baggett replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"To the guys who deal with these units all the time, would an ERV be more of an approiate unit than an HRV?"
Feb 19, 2012
Sue Davis replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"One other thing I noticed yesterday - the dryer vent is located about a foot from the HRV intake vent on the outside wall of the house.  When the dryer is running, the vent can easily be pulling in warm (and moist) air!!  Germans use…"
Feb 19, 2012
Sue Davis replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Barry, This is a combo American-German house.  The US government contracted the design and construction and it ended up being a mix of US vs.German norms/standards -- perhaps a case of too many cooks in the kitchen with an added language…"
Feb 18, 2012
Sue Davis replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Thanks.  When I pull the core, I don't see a drain but there is a tube that runs directly from the base of the unit to the sanitary vent line for the house, so I believe it does drain but don't see a loop.  I had the flu last…"
Feb 17, 2012
tedkidd replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Please let us know if cleaning the filters and the core cured your problem. There should be a drain for condensation.  The drain tube should have a loop in it with water trapping/preventing air leakage through the drain system.  If yours…"
Feb 16, 2012
Barry Stephens replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"I am surprised that you are having this issue in Germany. They are well ahead of North America in both efficiency of units, and proper installation. The HRV should have a defrost mode, either with unbalancing motors to provide more exhaust than…"
Feb 16, 2012
David Meiland replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"You might actually have a tight house there. The typical HRV I see is installed in a large, leaky, custom home with a couple of people living in it, and they're sitting there with their mittens on with the ventilation running continuously. I…"
Feb 11, 2012
Glen Gallo replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Sue  Very interesting. I would think that you are correct that there might be moisture issues. Paul Raymer whom is on this site would be great person to ask directly. He has probably forgotten more than I know about…"
Feb 11, 2012
Sean Lintow Sr replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"As I recall, HRV's have a drain tube to help eliminate this issue & that might have been the main issue / might still be an issue. Personally if you can handle opening the windows for a few minutes each day - I would pull the core…"
Feb 11, 2012
Sue Davis replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Good question.  It's US government housing on a military base in Germany  - kind of a mix between German and American design (think of committees here combined with language barriers). Most German homes in this area do not have active…"
Feb 10, 2012
David Meiland replied to Sue Davis's discussion Heat Recovery Ventilator - Iced Up
"Is the house tight enough and the occupant load high enough to require a HRV?"
Feb 10, 2012

Sue Davis just added their location.
(via No Title)

Feb 10, 2012
Sue Davis posted a discussion

Heat Recovery Ventilator - Iced Up

Greetings.  This is my first post/question - many more to follow, I'm sure. I live in a rental house that has radiant floor heat and a heat recovery ventilator that pulls warm, moist air out of the baths, kitchen, and laundry room and blows outdoor air warmed through the heat exchanger into the living spaces of the house. The  fan started making a high pitched noise this week, so I called and they sent out a service guy (plumber).  The air exchange unit is located in the attic against a south…See More
Feb 10, 2012

Profile Information

Company
None
Professional Certification
None
Professional Interests
Sustainable Design - Building Envelope/Energy Efficiency

Comment Wall (3 comments)

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

Join Home Energy Pros

At 5:58am on April 11, 2012, Diane Chojnowski said…

Hi Sue,

Would you please add your add your location on our Member Map? We'd really love to see Germany represented!

Thanks,

Diane

At 8:38am on March 6, 2012, Michael D'Orazio said…

Hello Sue,

I am a member of Home Energy Pro's site and have found it to be a great resource.  I have been around the energy industry and have new social media platform focusing on energy conservation: www.greenplug.nu

Im reaching out ot members who already share the same interest as Green Plug District will focus on.  We have a founders page up and looking for pepole to join for free create a profile and start adding content at: http://w321503.s182.ufhosted.com/gp-forum/

At 8:26am on January 25, 2012, Diane Chojnowski said…

Hi Sue,

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. We'd love to see Germany on the 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

Evan Mills replied to Sandra K. Adomatis, SRA's discussion Green Mortgage Appraisal Roundtable
"Would love see your slides, but the AI site requires login.  Can you post them here or email…"
6 minutes ago
Colin Genge posted a blog post

What needs to be done to get builders to follow Code for duct and envelope leakage?

“Have you been ripped off for $100,000 by your builder?  Let us help you get what you paid for! …See More
6 hours ago
Green Training USA posted an event
Thumbnail

Proctor’s Without Borders at Online

July 29, 2015 to August 7, 2015
Complete your training at your own pace and take exams when you want and where you want. No…See More
14 hours ago
Gar Swaffar commented on Gar Swaffar's blog post Cost of using a BPI QCI?
"Ip.s., I would presume there will be a difference between the Left Coast and nearly everywhere else."
yesterday
Gar Swaffar posted a blog post

Cost of using a BPI QCI?

I'd like to find out if there is a consensus on a rule of thumb cost of a QCI onsite for…See More
yesterday
Gar Swaffar is now a member of Home Energy Pros
yesterday
Colin Genge posted an event

Infiltration and Duct Leakage with BPI at Online

July 30, 2015 from 1pm to 2pm
Blower door and duct test requirementsCalculating resultsCertification optionsTest preparation and…See More
yesterday
Stacy Hunt posted an event

Volunteers needed for the upcoming U.S. Department of Energy Solar Decathlon in Irvine, CA at Orange County Great Park

October 8, 2015 at 11am to October 18, 2015 at 7pm
Volunteer for the upcoming U.S. Department of Energy Solar Decathlon 2015, taking place Oct. 8-18…See More
yesterday

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service