"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…"
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Sue Davis
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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
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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…"
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"
"To the guys who deal with these units all the time, would an ERV be more of an approiate unit than an HRV?"
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…"
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…"
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…"
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…"
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…"
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…"
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…"
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…"
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…"
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?"
Sue Davis posted a discussionHeat 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
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Comment Wall (3 comments)
- 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
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