ᐅ Installing a Mechanical Ventilation System with Heat Recovery in a Basement - Supply and Exhaust Air, Any Tips?
Created on: 13 Dec 2019 09:30
G
Grobmutant
Hello everyone,
I am currently thinking about the planning of the mechanical ventilation system.
The ventilation unit will be installed in our basement. Now I'm wondering how and where to best intake the outdoor air and where to exhaust the exhaust air.
There were (or still are) guidelines stating that the outdoor air intake should be at least 1 meter (3 feet) above ground level and not located in a light well.
That would mean I either need to have an “air shaft / column” (e.g., ComfoVent) on the house, which I don’t find very attractive visually, or I would have to bring the outdoor air intake back inside the house at the ground floor / upper floors and duct it through the masonry. This solution also sounds somewhat complicated.
Is it at least possible to exhaust the outgoing air through the light well?
Furthermore, I'm wondering if a ground heat exchanger or brine heat exchanger for the mechanical ventilation system makes sense. What are your experiences with this? Is it worthwhile?
If so, I might also be able to place the “air column” in a more discreet position on the property.
How have you solved this with a mechanical ventilation system installed in the basement? Pictures are also very welcome.
I am currently thinking about the planning of the mechanical ventilation system.
The ventilation unit will be installed in our basement. Now I'm wondering how and where to best intake the outdoor air and where to exhaust the exhaust air.
There were (or still are) guidelines stating that the outdoor air intake should be at least 1 meter (3 feet) above ground level and not located in a light well.
That would mean I either need to have an “air shaft / column” (e.g., ComfoVent) on the house, which I don’t find very attractive visually, or I would have to bring the outdoor air intake back inside the house at the ground floor / upper floors and duct it through the masonry. This solution also sounds somewhat complicated.
Is it at least possible to exhaust the outgoing air through the light well?
Furthermore, I'm wondering if a ground heat exchanger or brine heat exchanger for the mechanical ventilation system makes sense. What are your experiences with this? Is it worthwhile?
If so, I might also be able to place the “air column” in a more discreet position on the property.
How have you solved this with a mechanical ventilation system installed in the basement? Pictures are also very welcome.
JoachimJOY schrieb:
Hi Grobmutant,
I’m facing the same issue. I plan to install a Zehnder Q350. Initially, two ducts were recommended. However, I’ve read various reports online about mold, especially in the exhaust duct. Therefore, I will likely use the ComfoPipe System 2 with stainless steel pipes for supply and exhaust installed at ground level. This doesn’t look very neat, but I prefer to avoid mold on the exterior wall.
PS: Mold can sometimes appear only after a few years.
@Grobmutant: How did you end up solving it?
Regards, Joachim We have the system in operation. Great device. Supply and exhaust run through stainless steel chimneys, placed so they don’t cause any disturbance. Exhaust noise at level 1 is barely audible, level 2 is noticeable, and level 3 is very loud, especially at night.
But normally, the system only runs at level 1. Level 2 is used occasionally during the day. So, no real problem at all.
G
Grobmutant2 May 2020 19:02Thank you @Bookstar for your feedback. Are the noises audible inside near the outlets, or do you mean outside near the towers?
How was the system installed? Using rectangular duct or round duct? Was it embedded in the concrete ceiling or within the floor structure? Are the outlets located in the ceiling, wall, or floor?
How was the system installed? Using rectangular duct or round duct? Was it embedded in the concrete ceiling or within the floor structure? Are the outlets located in the ceiling, wall, or floor?
Grobmutant schrieb:
Thank you @Bookstar for your feedback. Are the noises heard inside near the outlets, or do you mean outside by the units?
How was the system installed? Ductwork with flat rectangular ducts or round ducts? Installed in the concrete ceiling or within the floor structure? Are the outlets located in the ceiling, wall, or floor? I meant the noises outside by the units. Inside you hardly hear anything, except a bit of the fan noise in the equipment room. The system was installed using round ductwork integrated into the concrete ceiling. The outlets are located in the ceiling.
G
Grantlhaua7 May 2020 08:39My exhaust air is directed into a pseudo light well (so just a shaft without windows), and I have never heard anything... It probably also depends on the system used.
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