Controlled residential ventilation with enthalpy or rotary heat exchanger

: At what level do you run the Zehnder Q350 TR and what are the approximate annual filter costs?

What humidity levels do you have without the enthalpy heat exchanger in winter?
Do you plan to connect the enthalpy heat exchanger only in winter, or will it also run in summer?

Thank you very much!

we have you running at level 2 (186 cubic meters of air). I have no idea about the filter costs, you can check in online shops what they cost, we change the exhaust air filters every 3 months. Let's see if we keep the enthalpy heat exchanger in year-round, without it we only have a humidity of 25 to max. 30 percent.

Best regards
Sabine

We also have a Helios Controlled residential ventilation system with an enthalpy heat exchanger. I have disconnected the entire control system of the Helios Controlled residential ventilation and connected it to our DDC for house and heating control/management. I control it based on humidity and air quality. For this, I installed a continuously regulating recirculation flap that limits the proportion of outside air. This way, we always have fairly constant values inside the house.

I would like to add a question here: What are your experiences with how much the enthalpy exchanger surcharge costs? And whether it is better to have it installed directly by the house/heating company or if you can safely buy it yourself and replace it in [EL] after the acceptance?

Best regards

We have the Viessmann Vitovent 300w and I ordered the enthalpy exchanger later through the heating technician and installed it myself. Humidity before was about 32 - 35% and now 39 - 42%. The price was about 800€. Regards

We have the Viessmann Vitovent 300w and I ordered the enthalpy exchanger afterwards through the heating engineer and installed it myself. The humidity before was about 32 - 35% and now 39 - 42%. The price was about €800.
Regards

May I ask you if the (rather small) difference in humidity is noticeably felt by you? The same system is supposed to be installed for us...