Viewing a single comment thread. View all comments

caucasian88 t1_j9vkwvj wrote

Just so you know it's code to install a UL listed microwave with an integral fan over the stove. So you could in theory just install a new one.

How big is your stove to warrant an 8" exhaust? What's the CFM? It sounds like you're oversizing.

0

ninian1927 OP t1_j9vnm23 wrote

I have a gas range, it's 44,000BTUs. Perhaps you're right. The range maxes out at 900cfm but I imagine only having it on level 1/2 most of the time. I could go down to the 600cfm option and use 6 inch. I may or may not still hit the stud but would have to do some cutting to see.

1

caucasian88 t1_j9vr5ro wrote

100 cfm per 10,000 btu. You're super oversized.

2

ninian1927 OP t1_j9w56ds wrote

From different research I'm not sure the CFM advertised is true CFM so they say to overshoot what you need.. but you're right I don't need 900cfm but it's 4 speed so I'll likely run it much lower.

1