Modern homes are so well insulated that it sometimes happens that a family will host a big holiday party, use their fireplace for the first time, and then get dinner started shortly thereafter; the first time their nearly commercial grade overhead hood fires up, hot embers will be blown across the floor of the room with the fireplace.
(Or, those homes correctly have a "make up air" duct installed, which resolves this scenario)
We recently rebuilt the wall that houses our hood for our propane kitchen range. It's 4 inches, and I asked how difficult it would be to move to a 6 inch duct, since it's far more volume of air to be moved. Of course, the answer was a logistical difficulty and out of budget.
On particularly damp days in the winter here in New Hampshire, if someone accidentally leaves a bathroom fan running, and perhaps the kitchen hood, it can be nearly impossible to get a wood stove fire going. So although these electrical systems are not drawing what seems like a lot of air, they have practical effects on unrelated systems.
Interesting this tracks in homes too but makes sense I guess. In restaurants the hood exhaust/ventilation system is one of if not the largest one-time cost. It's why restaurants almost always move into spaces previously occupied by restaurants, the cost to add it is usually just too much except as part of new development.
(Or, those homes correctly have a "make up air" duct installed, which resolves this scenario)
We recently rebuilt the wall that houses our hood for our propane kitchen range. It's 4 inches, and I asked how difficult it would be to move to a 6 inch duct, since it's far more volume of air to be moved. Of course, the answer was a logistical difficulty and out of budget.
On particularly damp days in the winter here in New Hampshire, if someone accidentally leaves a bathroom fan running, and perhaps the kitchen hood, it can be nearly impossible to get a wood stove fire going. So although these electrical systems are not drawing what seems like a lot of air, they have practical effects on unrelated systems.