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gfweb

gfweb


.

Re hood power. In our area code says if >400 cfm in the hood there must be a make-up air vent installed so that the hood doesn't suck heater or fireplace exhaust into the house.  I've seen this happen in a previous house that was tight.

http://www.todayshomeowner.com/how-to-calculate-kitchen-range-hood-fan-size/

Code doesn't seem to care if the house gets smoky so no mandated cfm/btu ratio. Hoods sales guys give rules of thumb like 15K btu needs 100 cfm, and then calculates the cfm based on all burners going full blast at once...an unlikely scenario. Our kitchen designer says this is nonsense and that makes sense to me, 390 cfm is a lot of air.

 

I don't know how to think about induction tops and cfm. On the one hand theres less heat to vent, on the other there's less heat to carry smoke upward and the hood will have to suck harder

gfweb

gfweb

Re hood power. In our area code says if >400 cfm in the hood there must be a make-up air vent installed so that the hood doesn't suck heater or fireplace exhaust into the house.  I've seen this happen in a previous house that was tight.

 

Code doesn't seem to care if the house gets smoky so no mandated cfm/btu ratio. Hoods sales guys give rules of thumb like 15K btu needs 100 cfm, and then calculates the cfm based on all burners going full blast at once...an unlikely scenario. Our kitchen designer says this is nonsense and that makes sense to me, 390 cfm is a lot of air.

gfweb

gfweb

Re hood power. In our area code says if >400 cfm in the hood there must be a make-up air vent installed so that the hood doesn't suck heater or fireplace exhaust into the house.  I've seen this happen in a previous house that was tight.

 

Code doesn't seem to care if the house gets smoky so no mandated cfm/btu ratio. Hoods sales guys give rules of thumb like 15K btu needs 100 cfm, and then calculates the cfm based on all burners going full blast at once...an unlikely scenario. Our kitchen designer says this is nonsense and that makes sense to me 390 cfm is a lot of air.

gfweb

gfweb

Re hood power. In our area code says if >400 cfm in the hood there must be a make-up air vent installed so that the hood doesn't suck heater of fireplace exhaust into the house.  I've seen this happen in a previous house that was tight.

 

Code doesn't seem to care if the house gets smoky so no mandated cfm/btu ratio. Hoods sales guys give rules of thumb like 15K btu needs 100 cfm, and then calculates the cfm based on all burners going full blast at once...an unlikely scenario. Our kitchen designer says this is nonsense and that makes sense to me 390 cfm is a lot of air.

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