ᐅ Controlled residential ventilation in winter, dry air—what can be done about it?
Created on: 12 Feb 2018 09:19
T
Tommes78
Hello everyone,
how is it with your mechanical ventilation system with heat recovery? At the moment, we have a humidity level of 30 - 32% and unfortunately, that’s not very comfortable. Is it the same for you?
We have a Vallox system with heat recovery, and there is an option to upgrade to an enthalpy heat exchanger. However, that costs around €1000 and I’m not sure if it really makes a difference.
Right now, I’m quite disappointed with the mechanical ventilation system. In winter, the air is dry, and in summer, during the heat, you don’t get fresh air into the house either.
I’d like to hear about your experiences.
how is it with your mechanical ventilation system with heat recovery? At the moment, we have a humidity level of 30 - 32% and unfortunately, that’s not very comfortable. Is it the same for you?
We have a Vallox system with heat recovery, and there is an option to upgrade to an enthalpy heat exchanger. However, that costs around €1000 and I’m not sure if it really makes a difference.
Right now, I’m quite disappointed with the mechanical ventilation system. In winter, the air is dry, and in summer, during the heat, you don’t get fresh air into the house either.
I’d like to hear about your experiences.
sven.conzi16 Feb 2018 17:23Steffen80 schrieb:
We were also talked into it. In the end: after 4 weeks in the new house, I ordered and installed the enthalpy exchanger myself. About 900 EUR (about 960 USD)...Is it possible to replace the enthalpy exchanger yourself with Zehnder systems, or does a technician have to do it?
I believe that typical maintenance work on the mechanical ventilation with heat recovery system can be done by anyone. Just check YouTube.
From my experience, it's generally more cost-effective to choose enthalpy recovery as part of the initial installation rather than adding it later as an accessory.
@Steffen80 how are you settling into your new home? We don’t hear much from you anymore.
From my experience, it's generally more cost-effective to choose enthalpy recovery as part of the initial installation rather than adding it later as an accessory.
@Steffen80 how are you settling into your new home? We don’t hear much from you anymore.
For now, we decided to go without humidity recovery. There were several reasons for this.
Firstly, the additional cost for us would have been €1,200. We can always upgrade later. Secondly, we expect that a standard heat exchanger will allow more moisture to leave the house initially.
My husband doesn’t mind having two heat exchangers; he says it means he has a spare or can quickly swap one out when cleaning it. I hope I understood that correctly. The ventilation system and the fireplace are more his area of expertise [emoji16]
Firstly, the additional cost for us would have been €1,200. We can always upgrade later. Secondly, we expect that a standard heat exchanger will allow more moisture to leave the house initially.
My husband doesn’t mind having two heat exchangers; he says it means he has a spare or can quickly swap one out when cleaning it. I hope I understood that correctly. The ventilation system and the fireplace are more his area of expertise [emoji16]
I have now requested the Q350 model with enthalpy instead of the standard version. The additional cost is almost exactly €500 (about $540). Compared to installing it later, which would be almost twice as expensive, I will have it done this way right away.
Thanks for the tips and feedback; at least I caught one mistake in advance.
Thanks for the tips and feedback; at least I caught one mistake in advance.