ᐅ Controlled residential ventilation in winter, dry air—what can be done about it?
Created on: 12 Feb 2018 09:19
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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.
B
Bieber081515 Feb 2018 09:44Mycraft schrieb:
Simple cross-flow heat exchangers usually do not consist of a single sheet of metal either.I am aware of that; sorry if I was unclear due to brevity. Apparently, the only difference is the material used to manufacture the heat exchanger. In this case, a membrane is more expensive (because it is more complex to produce) than a "sheet metal," even if it is a specially profiled one for a plate heat exchanger.
That makes no sense. You wouldn’t buy a car with a smaller engine only to replace it with a bigger one after two years.
The potential for moisture recovery through a heat exchanger is limited. Therefore, any excess moisture will be vented out whether there is an enthalpy exchanger or not. This assumes, of course, that the system is running continuously.
The potential for moisture recovery through a heat exchanger is limited. Therefore, any excess moisture will be vented out whether there is an enthalpy exchanger or not. This assumes, of course, that the system is running continuously.
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Steffen8016 Feb 2018 09:13Pädda schrieb:
I once read that some people delay installing the moisture recovery element in new buildings due to the high humidity during the construction phase. I have no experience with this myself, as we are still planning our new build.
We were convinced otherwise as well. In the end: after 4 weeks in the new house, I ordered and installed the enthalpy exchanger. Cost was about 900 EUR (approx. $980).
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