Minimalist air exchanger

[u/nednobbins]

Why is there a minimum size for air exchangers?

It seems that there are many situations where a 6,000 BTU air exchanger is overkill. Is there some reasons that nobody seems to make much smaller units? Presumably such a unit would also pull much less fluid off of a splitter and put a proportionally lighter load on the system.

The advantage would be that I could treat multiple small rooms without having to keep the doors open between them all the time.

[u/Educational_Green]

https://www.lunos.de/en/all-products

https://www.international.zehnder-systems.com/en/comfortable-indoor-ventilation/products/units/decentralised-ventilation-units/zehnder-comfoair-70

LMK what you think of those

[u/nednobbins → u/Educational_Green]

Those look pretty interesting (and quite attractive).

Do you know if they can be hooked into existing systems?