Range exhaust hood question

[Marcel R. Cyr]

Nice Roy; I still have a cheapy modle that does not suck any air out, just circulates the dirty air in my opinion.

Exhaust fan that works properly, I guess that opens another window about air-exchange and where it comes from. Every CFM exhausted has to be replaced.
Question! Is there enough leakage through windows, doors, gaps, fireplace, attic, wall components, floors, and what not to compensate for exhaust hoods that could exhaust as much as 500-1500 CFM's?

Is it possible to oversize the kitchen exhaust hoods for the purpose intended?
Are we trying to accommadate our clean-air in home and causing another problem?

Maybe I ask to many question. ha. ha.

Marcel

[rrichards2]

Originally Posted by mcyr

Nice Roy; I still have a cheapy modle that does not suck any air out, just circulates the dirty air in my opinion.

Exhaust fan that works properly, I guess that opens another window about air-exchange and where it comes from. Every CFM exhausted has to be replaced.
Question! Is there enough leakage through windows, doors, gaps, fireplace, attic, wall components, floors, and what not to compensate for exhaust hoods that could exhaust as much as 500-1500 CFM's?

Is it possible to oversize the kitchen exhaust hoods for the purpose intended?
Are we trying to accommadate our clean-air in home and causing another problem?

Maybe I ask to many question. ha. ha.

Marcel

Marcel,
You raise some valid points. The blower units that I use are designed for residential kitchens. These are high end blowers $1500-2000 range all stainless steel. The hood, ducting and filters were designed by myself. I take the make up air into consideration when we install these however, in the large homes that I install these it is usually not a problem. I was just joking about the small pets.

[Roy D. Cooke, Sr]

Originally Posted by mcyr

Nice Roy; I still have a cheapy modle that does not suck any air out, just circulates the dirty air in my opinion.

Exhaust fan that works properly, I guess that opens another window about air-exchange and where it comes from. Every CFM exhausted has to be replaced.
Question! Is there enough leakage through windows, doors, gaps, fireplace, attic, wall components, floors, and what not to compensate for exhaust hoods that could exhaust as much as 500-1500 CFM's?

Is it possible to oversize the kitchen exhaust hoods for the purpose intended?
Are we trying to accommadate our clean-air in home and causing another problem?

Maybe I ask to many question. ha. ha.

Marcel

I usually only have to run it on low speed 18 year old home Good windows . I do not see any problems of course it could pull air back through the dryer or the central vacume . I also guess I still have enough comming in through the walss and windows . I also put in quiet vents on timers in both bath rooms Insulated pipes and the best 4 inch vents with springs on steel doors well worth the $14:00 each .
Roy sr 100 CFM comes to mind

[Marcel R. Cyr]

Hi. Roy Cooke;

I hope you are enjoy your Neuton Exhaust fan. I have revued some of them and they are pretty fancy. You must be doing alright depending on the model.

I agree with you on the 100 CFM, because it is typical to see bathroom exhaust between 80-110 CFM depending on size of course.

P.S. Too many Roys, the other Roy's R. exhaust fan is sucking out small critters, I hope it is just in the size of a mouse or overgrown house fly. ha. ha. ha.

Have a good day.

Marcel

[Jay Moge]

Originally Posted by rrichards2

This is one of several I have built for my clients over the years. The blower is mounted outside on the wall and connected with 10" Dia. duct. Great for indoor grilling. When set to high speed it can pick up small family pets.

nice work Roy. glad to see there are still quality craftsmen around.

[Jay Moge]

Originally Posted by rcooke

I installed an allure by nutone no sharp corners.
Did not go for the cheapest I went for the quietest.
It has six slots under the front and this causes a vornado effect .
It does a great job on low speed removing all the steam from the front burners.
I guess you get what you pay for.

Roy sr

about 18 years ago when i was the dish boy at the high class joint downtown, we had the huge gaylord hoods like all resteraunts do, however the cielings were only 8 ft. so we had those stupid foam corners taped to the stainless hoods, and of course i found out why, the hard way, at least twice a night.

[Jae Williams]

Originally Posted by Jay Moge

about 18 years ago when i was the dish boy at the high class joint downtown, we had the huge gaylord hoods like all resteraunts do, however the cielings were only 8 ft. so we had those stupid foam corners taped to the stainless hoods, and of course i found out why, the hard way, at least twice a night.

Slow learner...

[Marcel R. Cyr]

Hi. Jay;

Now you know from the hurt of your head that Commercial Hoods should be installed at between 78" - 84" in height. Compared to Residential, 36"+ 18" + 30" - 18", 15", or 12" -6" for the hood = 5' 0", 5' 3", and 5' 6" respectively to the bottom of the hood.

Sounds like the Commercial Hood was set at residential heights. Bang head learn something, right? Ouch. ha. ha.

Marcel

[Jay Moge]

Originally Posted by jwilliams4

Slow learner...

not to mention that each time i did it, i forgot i did it shortly after. strange, but i can't figure out why that is.......................sorry, what was i saying?

[Jay Moge]

Originally Posted by mcyr

Hi. Jay;

Now you know from the hurt of your head that Commercial Hoods should be installed at between 78" - 84" in height. Compared to Residential, 36"+ 18" + 30" - 18", 15", or 12" -6" for the hood = 5' 0", 5' 3", and 5' 6" respectively to the bottom of the hood.

Sounds like the Commercial Hood was set at residential heights. Bang head learn something, right? Ouch. ha. ha.

Marcel

the real issue was a commercal kitchen in a residential building. the ceilings were only 8', the hood was almost 2.5' from the ceiling, that leaves 5.5' from the floor, i'm 5'7'' and the dent was 2'' down on my fore head. that adds up perfect to me.