ᐅ Exhaust hood in a mechanical ventilation system with heat recovery: What are your experiences?
Created on: 13 May 2015 11:29
S
Sheriff
Hello everyone,
Does anyone here use an exhaust hood despite having a controlled mechanical ventilation system? Generally, recirculation is recommended with controlled mechanical ventilation, but it seems possible to use an exhaust system as well, which appeals to me (odors and dirt stay outside).
What are your experiences?
Thank you in advance!
Does anyone here use an exhaust hood despite having a controlled mechanical ventilation system? Generally, recirculation is recommended with controlled mechanical ventilation, but it seems possible to use an exhaust system as well, which appeals to me (odors and dirt stay outside).
What are your experiences?
Thank you in advance!
D
Doc.Schnaggls10 Dec 2015 12:34Hello Manuel,
we have the Blockline wall-mounted hood from Berbel.
The standard LED lighting is completely sufficient for us, as we have installed a few nice lighting effects elsewhere (baseboard lighting with color-changing option as well as LED spotlights in the ceiling) in the kitchen.
Regards,
Dirk
we have the Blockline wall-mounted hood from Berbel.
The standard LED lighting is completely sufficient for us, as we have installed a few nice lighting effects elsewhere (baseboard lighting with color-changing option as well as LED spotlights in the ceiling) in the kitchen.
Regards,
Dirk
Peanuts74 schrieb:
That’s why I think it’s complete nonsense to predict an energy disaster.
And even if you forget to open the window (we don’t have a contact switch), it doesn’t create a vacuum in the house that would cause suffocation. Do you have a fireplace? Then keep the window closed and run the exhaust fan.
Maybe nothing will happen, maybe you won’t notice anything, but if something does happen, the outcry will be loud.
P
Peanuts7411 Dec 2015 06:59Of course, we don’t have a fireplace! It’s certainly cozy and looks nice. However, I don’t want to deal with the work and mess involved in handling wood, especially since real (open) fireplaces are no longer allowed anyway.
But you’re right, a controlled ventilation system, exhaust hood, and fireplace do make things more complex. Still, controlled ventilation and exhaust are no problem, and that was what was asked about—there was no mention of a fireplace...
But you’re right, a controlled ventilation system, exhaust hood, and fireplace do make things more complex. Still, controlled ventilation and exhaust are no problem, and that was what was asked about—there was no mention of a fireplace...
P
Peanuts7411 Dec 2015 09:48Seriously, how long do you cook every day? Even if I make a schnitzel or steak with fries, it doesn’t take longer than an hour. Pasta, rice, etc., is even quicker.
We have an open-plan living and dining area with an open kitchen; the entire space is about 60m² (645 ft²).
When you tilt a window open in the kitchen and run the exhaust hood, you can definitely feel that the kitchen area gets a bit cooler. Essentially, there’s a circulation: cool air comes in through the window, and cooking fumes go out.
However, in the living and dining areas, you hardly notice any draft, and the temperature doesn’t drop. You’re not pulling heat out of the entire room, only up to about a third of that space cools down, and only for a maximum of one hour per day. Hallways, bathrooms, bedrooms, dressing rooms, and guest rooms remain completely unaffected.
Surely you don’t seriously believe that this causes a significant increase in heating costs? I had already estimated roughly 10%, even though, as mentioned, you’re only opening the window in about 10% of the living area for around 5% of the day. Maybe someone could calculate what this would actually mean in terms of costs?
We have an open-plan living and dining area with an open kitchen; the entire space is about 60m² (645 ft²).
When you tilt a window open in the kitchen and run the exhaust hood, you can definitely feel that the kitchen area gets a bit cooler. Essentially, there’s a circulation: cool air comes in through the window, and cooking fumes go out.
However, in the living and dining areas, you hardly notice any draft, and the temperature doesn’t drop. You’re not pulling heat out of the entire room, only up to about a third of that space cools down, and only for a maximum of one hour per day. Hallways, bathrooms, bedrooms, dressing rooms, and guest rooms remain completely unaffected.
Surely you don’t seriously believe that this causes a significant increase in heating costs? I had already estimated roughly 10%, even though, as mentioned, you’re only opening the window in about 10% of the living area for around 5% of the day. Maybe someone could calculate what this would actually mean in terms of costs?
D
Doc.Schnaggls11 Dec 2015 10:19Hello,
I also don’t understand why a huge effort is made regarding insulation and a mechanical ventilation system with heat recovery is installed, only to then create a hole in the exterior wall that, despite hopefully having an insulated wall box, still represents a thermal bridge.
Why should I go through the (admittedly minor) effort of tilting a window to operate my exhaust hood when there are now recirculation hoods that work just as effectively?
Apart from the fact that, during certain seasons, I would be unnecessarily pushing out heated air to a considerable extent and, in exchange, pulling cold air (through the tilted window) into the building.
This is also relevant in summer – then, I would potentially be exhausting the cooler indoor air, which I have thanks to excellent insulation and mechanical ventilation with heat recovery, and drawing in hot outdoor air through the tilted window.
In any case, we have a perfectly functioning system consisting of mechanical ventilation with heat recovery, a recirculation hood, and a certified wood stove, and despite the recirculation hood, we have no problems with cooking odors in our approximately 72 m² (775 sq ft) open living, dining, and kitchen area.
I don’t intend to judge other approaches as wrong – I can only share how trouble-free and comfortable our installed solution works.
Regards,
Dirk
I also don’t understand why a huge effort is made regarding insulation and a mechanical ventilation system with heat recovery is installed, only to then create a hole in the exterior wall that, despite hopefully having an insulated wall box, still represents a thermal bridge.
Why should I go through the (admittedly minor) effort of tilting a window to operate my exhaust hood when there are now recirculation hoods that work just as effectively?
Apart from the fact that, during certain seasons, I would be unnecessarily pushing out heated air to a considerable extent and, in exchange, pulling cold air (through the tilted window) into the building.
This is also relevant in summer – then, I would potentially be exhausting the cooler indoor air, which I have thanks to excellent insulation and mechanical ventilation with heat recovery, and drawing in hot outdoor air through the tilted window.
In any case, we have a perfectly functioning system consisting of mechanical ventilation with heat recovery, a recirculation hood, and a certified wood stove, and despite the recirculation hood, we have no problems with cooking odors in our approximately 72 m² (775 sq ft) open living, dining, and kitchen area.
I don’t intend to judge other approaches as wrong – I can only share how trouble-free and comfortable our installed solution works.
Regards,
Dirk
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