Heat Recovery Ventilators

[KarstenP]

To echo the use case for the "suitcase" style units. I attended the allrad show in Germany last may and found this unit by Bayernluft. I too am looking for cold weather passive ventilation, so seeing a company on this side of the pond like Pioneer building basically the same unit is pretty neat.

As far as use case for RV use? Well, Bimobile is one of the largest players in Europe and wouldn't be placing these units in their campers if they fail. As pictured below they've attached it to the entry door on that specific camper. Utilizing this dead space on the door is great if you arn't planning on having a window in your entry door.

Heres a link, they offer simple manual units all the way up to humidity sensing wifi enabled units:
BayernLuft

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Being the senior sales guy at bimobil, I can personally vouch for the Bayernluft / Bavariavent system.
We use those for about 7 years now in most of our builds, even as mandatory accessoiries when equipped with KCT windows and hatches which don't have any ventilation.
One thing is, we need to get fresh air (oxygen) in and used air (moisture and CO) out. There's about a litre of moisture a person emitting per night with sweating and breathing, this is what you see as condensation where the coldest point in the cabin is (about 7°C difference inside/out).
We've tested those down to -30°C with great effect. Talk about 3 people and 2 big wet dogs in a 22' camper with tight KCT windows / hatches and extremely air tight cabin. We've seen 10" icicles hanging from the outlet vent in the morning.

 

[Trail Talk]

Being the senior sales guy at bimobil, I can personally vouch for the Bayernluft / Bavariavent system.
We use those for about 7 years now in most of our builds, even as mandatory accessoiries when equipped with KCT windows and hatches which don't have any ventilation.
One thing is, we need to get fresh air (oxygen) in and used air (moisture and CO) out. There's about a litre of moisture a person emitting per night with sweating and breathing, this is what you see as condensation where the coldest point in the cabin is (about 7°C difference inside/out).
We've tested those down to -30°C with great effect. Talk about 3 people and 2 big wet dogs in a 22' camper with tight KCT windows / hatches and extremely air tight cabin. We've seen 10" icicles hanging from the outlet vent in the morning.

Is the Bayernluft available in Canada?

 

[KarstenP]

I don't think so. This is a small manufacturer. Might be worth dropping them an email:

info@bayernluft.de

 

[Dtrom]

Might be late the the party. I made an HRV for my sprinter 170 that uses the same basic concept as a lunos with 2 ceramic cores, fans, CO2 sensor embedded in a wall mounted stat/controller. It all runs from a single 12VDC cable.

Looking to help a few people build their own to test my design on some other installation. I live in Ontario Canada in a cold climate down to -10C. Looking to help you build yours to get feedback on how it work on other vehicles and houses.

Prefer if you have some technical skill and access to a 3d printer. You do have to buy some things and 3d print a few parts. I can share sources and model files.

Pls reach out if you are interested.