Still working on the house with the removed appliances and HVAC. The HVAC job is on the backburner right now while we gradually move. Currently doing the planning on outfitting the kitchen.
My wife fell in love with a fire-breathing cooktop by "Capital". This sucker has a central burner that does 20,000 BTUH! Naturally, such a rocketship needs a good range hood, and we have chosen a Kobe that can flow 1000CFM. What appeals to me about the Kobe is that it has a very LARGE squirrel cage blower, that should be pretty quiet at more pedestrian flows.
Hey, that 1000 CFM has to come from somewhere. I was already considering an Aprilaire fresh-air damper because the house is so tight. The Aprilaire only has a timer. You can set it to flow 5 minutes per hour etc.
Now I see that Broan makes "makeup air dampers" which are very similar to the Aprilaire, except they just have a wire to turn on, turn off. A bit cheaper too.
As a gadget freak, I think I can make the Broan serve dual function.
Makeup air for the range hood, AND periodic ventilation as required.
How to figure out what's required? Simple. I got a CO2 sensor on Ebay that outputs serial data. Either a small computer or my main Linux server can monitor the CO2 level and automatically flow exterior air if and when when it becomes objectionable.
Fun, fun, fun