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Indian here, never heard of a "range vent" but it's known as an electric chimney.
Very rare, except in maybe new and rich homes. The vast majority, including me, use an exhaust fan like this https://www.amazon.in/Havells-Ventil-230mm-Exhaust-FHVVEMTBRN09/dp/B091FBFFMM It's very simple, not as thorough as an electric chimney, but it picks up air from the immediate vicinity and pushes it outside.
Cheers,
Vikram.
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electric chimney - interesting. It fits.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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Around here, a range hood [^] is standard in every house. It's just an exhaust fan housed in a fancy hood over the cooker, price depending on the design.
There are also a fan that vent all the air in the house, but it's only found in relatively new buildings. That's usually an exhaust fan in the bathroom wall or ceiling, with inlet vents built into walls of all rooms.
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Our apartment has the microwave mounted above the stove (electric) and that provides the filtering you mention.
Past apartments have had the microwave vent to the outside.
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Gas, and I never use the vent fan. Seems pointless. It's at least two feet above the burners and has no suction, so I can't imagine it vents anything. And my house (100 years old) is rather porous anyways and I as you say, in the spring/summer, I have windows open. So do I care if I'm possibly going to die from harmful PM 2.5 particles in 30 years given that I'm 61? No, not really. 
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charlieg wrote: Take my gas range, and I'm going John Simmons on you
Amen, brother! We have a gas range with an electric oven. It's the ideal combination. Instantly available and adjustable heat up top, well-controlled temperatures for baking.
Any anyone who makes sexist remarks about guys baking can ![Elephant | [mastadon]](https://codeproject.global.ssl.fastly.net/script/Forums/Images/elephant.gif) right off. I have my mother's recipe for banana nut bread and I ain't sharin' with y'all.
Software Zen: delete this;
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I'm in the US. I had a filter-and-vent-inside range hood for many years and it did pretty much nothing. So I now have a vent to the outside hood, having rearranged my kitchen to allow it, but it hasn't been installed yet. I have always wanted a whole-house venting fan. Seems highly practical.
I have an electric range because I prefer baking with electric, but I would trade it in a heartbeat for a gas stovetop/electric oven combo. I may even go for total gas range since I'm no longer baking for a herd, having only a single adult child living with me and therefore making good use of my air fryer to bake smaller portions.
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My range hood used an interior venting fan. When I started the kitchen renovation, the range hood came out. The only difference I noticed in interior pollution was that the smoke alarm closest to the range does not trip as often. This may be because the air disperses throughout the kitchen now, instead of along the ceiling. When the reno is complete I will be venting through the roof. Not ideal, but side walls are too far from the range location.
I live in a rural setting where natural gas is not available and propane costs to much. If natural gas was available I would bring it in for heating (Canadian winters get cold) but keep my range. I really like its induction cooktop and convection oven.
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charlieg wrote: ate 70s in the US, house designs went cheap or bat crap stupid - you pick. Instead of venting range gases to the exterior, they "filtered" them and put it right back in the house. This might have been driven by trying to make houses more energy efficient, I honestly don't know.
Because they had electric stop tops and ovens. The vent of gases would be from cooking and not fuel.
charlieg wrote: Years later, I came across Asian co-workers who had HUGE vents (industrial grade) in their kitchens
Did they have gas burners? Woks work better with gas burners. For gas you should have an outside exhaust fan.
Code requirements in most states would require an outside exhaust fan.
As long as one meets code requirements they can chose what to do after that. So you can install a bigger exhaust vent even if not really needed.
Googling suggests there are states that do not require that. With new houses requiring much tighter air exchange rates not sure that would be a good idea.
If you using a Wok for dinner then it probably doesn't matter.
But if you decide to use your grandfathers recipe for chili that requires an 8 hour simmer, perhaps not such a good idea.
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"Googling suggests there are states that do not require that. With new houses requiring much tighter air exchange rates not sure that would be a good idea."
I suspect there is engineering truth here. The over regulation of our lives is getting absurd. I'll just open a f'ing window.... meanwhile, would you like some fried snapper cooked on my gas stove with hush puppies?
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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charlieg wrote: The over regulation of our lives is getting absurd
People would like to claim that people will do good given the chance so regulation is not needed.
But that ignores stupidity and selfish behavior not on a large scale but just a small scale. So for example they don't own a nuclear weapon but they think it is ok to shoot their gun into the air for whatever holiday is going on. Which is an example of both selfishness and stupidity.
Penn points out how this works for libertarianism...
Penn Jillette on why his views on libertarianism have changed - YouTube[^]
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oh for fs. We are talking appliances in kitchens not shooting weapons in the air. You are normally sharper than this.
Here are idiots shooting their guns in the air: Celebratory gunfire at Arab weddings - YouTube[^]
Here is my gas range: Redirect Notice[^]
I'm fairly certain about the only thing you are going to get from my gas range is an excellent steak.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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I quoted what I was responding to...
"The over regulation of our lives is getting absurd."
If you meant that only to apply to building kitchens then it was not clear.
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I've only seen one place without an exterior vent outlet, and that was my apartment in 1980 or so; even my parents' house - purchased in 1955 - had a real vent. But even so, I've recently discovered that they do no good. I purchased a HEPA filter for filtering the whole house recently, and it's equipped with a display showing the current "cleanliness" of the air. Most of the time it maintains it at 100%, but when I try to fry up some crispy strips of dead pig, within seconds it drops to 7% or less, with the exhaust fan running! Once I'm done cooking it recovers in about 20 minutes of breathing heavy. From that I draw two conclusions: 1) a good filter in the house is an excellent investment and, 2) kitchen exhaust fans are worthless, even if they're vented outside.
Will Rogers never met me.
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True story... Where I am staying presently has a vent hood over the stove. I cackled when I realized why every time I cook bacon I set off the smoke alarm.
It doesn't vent to anywhere at all.
It blows the air it sucks up at an angle directly above your head.
If I were a six inches taller it would literally be sucking all the air up over the stove and blowing it directly in my face.
I really don't know what's normal, but I've never been in family/friend kitchens which did not duct the stove vent at least into the attic if not out of the house.
They say smoke kills people (versus fires) so I wonder if a nice strong vent like that might not be lifesaving. You could wire it into a smoke alarm so that it automatically kicks on. I've never heard of this and I don't know why.
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exactly
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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Here in New Zealand 'rangehoods' (the extractor/vent fans) are very common. I wouldn't say everybody has them, but most people do. Those that don't often have a broken one they haven't bothered to repair. Those would all be exterior venting systems as far as I know, I've never heard of a filter/vent internally one.
They aren't perfect, you can overwhelm them (and still need to open doors/windows), but they definitely vent a lot, and for gentle cooking often mean you can leave the house shut up if you need to.
We had an electric hob in our previous house (also very common here, probably the most common type), but gas in our current place. Induction is becoming quite trendy, and common among new builds/wealthy people.
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Also in NZ.
The current house (1959) has a range hood vented to the outside, but I can see from marks on the outside wall that it previously had a simple extractor fan (vents outside but no hood to collect the smells/steam from over the stove top).
Our previous house (1922) had an extractor straight into the roof cavity, needless to say that was replaced along with removing half a ton of congealed fat that had collect there over the decades.
In apartments I have seen the recirculation type fans quite often. You need to clean and/or replace the charcoal filters on a regular basis or all they push bad air around.
As for cooking here, while we (wife and I) love a gas hob, they are becoming much rarer. Both mains and bottled gas are being phased out as being environmentally damaging. We still have gas for a BBQ, but much prefer a charcoal one dur to its inherent smokiness.
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you can overwhelm them. The house I grew up in had a real range vent - meaning it sucked up air over the range and sent it up over the roof. As a kid, I didn't think anything about this I just thought duh, nss. Then I grew up and lived in apartments, rental houses, houses I bought, and all of them came with the stupid as **** filter vents. Just why bother?
Then I grew up. So a few months after the kitchen renovation is done, I'm working in my yard and smelling wonderful cooking from somewhere, maybe my neighbor? Nope, I'm where the range vent vents and I'm smelling my wife's cooking. After face palming myself I had to laugh. Growing up, my entire neighborhood had real vents... so depending where you walked you knew what family was cooking.  good times.
Charlie Gilley
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
Has never been more appropriate.
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I just saw on one of my state's official websites:
Computer Programmers -- Convert project specifications and statements of problems and procedures to detailed logical flow charts for coding into computer language.
(Emphasis mine.)
Glad I'm a Software Developer rather than one of those.
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Yeah, but just think if they did still teach that. How to think and approach a problem is more useful than "use this or that framework". I used to have a template for drawing the things.
I’ve given up trying to be calm. However, I am open to feeling slightly less agitated.
I’m begging you for the benefit of everyone, don’t be STUPID.
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I agree. I'm glad that when I took my first programming class (BASIC in 1983) we had to submit flow charts.
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From the point of view of an amateur, flow charts are a good thing. They emphasize the logic of how to solve the problem. OOPS emphasizes the bureaucratic details of instantiating objects, constructor functions, templates and dependencies. 60's music was better, too.
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Andy Allinger wrote: 60's music was better
Continues to be better. Anything up to about 1990.
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Good music continues to be made. You might have to look for it. Look through KEXP's playlists - you will likely find something you like: https://www.youtube.com/@kexp
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