ᐅ Controlled residential ventilation: enthalpy exchanger or standard heat exchanger

Created on: 15 Apr 2017 22:09

Hello,

we are planning to install a Zehnder Q350 for our new build and now we have to decide whether to go with enthalpy recovery or a standard heat exchanger. The question is whether enthalpy recovery can effectively and quickly remove the construction moisture.

The enthalpy option has an additional cost of about €650, and retrofitting it would cost €800. What would you recommend, and does anyone have experience with this?

Thank you!

Mycraft16 Apr 2017 12:48

#13

No one disputes that it is possible, but it is just money wasted... since it also works properly right away with the enthalpy exchanger.

Momad16 Apr 2017 15:40

#14

Ok, convinced, we will start with the enthalpy exchanger then, thanks :-). What about the durability of these parts? Once again, the manufacturers provide hardly any information on this.

andimann17 Apr 2017 09:44

#15

Hello,

Momad schrieb:
What happens if the indoor air humidity stays above 70% for the first two years with enthalpy ventilation? Is there then a risk of mold growth?

If you have a mechanical ventilation system with heat and moisture recovery and still see indoor humidity above 70%, then it is either broken or not properly connected... 😉

We also use the Zehnder Q 350 with an enthalpy exchanger, and the indoor humidity is around 45% everywhere in the house. The house is also new; we moved in at the beginning of December. I wouldn’t want it much drier than that.
Our ventilation system runs continuously at about 230 m³/h (135 cfm).

Best regards,

Andreas

Bieber081518 Apr 2017 09:21

#16

We also installed an enthalpy heat exchanger from the very beginning. Everything works perfectly; I would definitely do it that way again.

Saruss18 Apr 2017 13:36

#17

Ditto.

ᐅ Controlled residential ventilation: enthalpy exchanger or standard heat exchanger

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