Venting an over the range microwave.

[jslo]

Third one is an arch fault breaker which are now being required in all bedrooms, VERY sensitive to tripping.

[jslo]

Also I believe ALL kitchen, baths and laundry circuits are required to be 20 amp (with exception to lighting circuits). Hopefully one of our resident electricians will correct me if I'm wrong.

[Irving]

Thank you jslo. Let's just bump this right up so I can shop deserted aisles during the game today.

[Irving]

I bought 3" ducting for this. Will that be a problem? I don't think the microvent fan will be able to move more air than this 3" pipe can support. Someone please respond if you know one way or another.

[newracer]

Microwave needs a 20 amp circuit, which will require 12/2 wire.

[Irving]

Picked up 250' of 12-2, three 20 amp receptacles (one GFCI for washer/dryer), and three 20 amp circuits tonight. Tearing out some drywall in about 10 minutes. All I need now is a short length of conduit to run from my soffit into my breaker box. I'll get that when I pick up the other crap I bought that I don't need.

[Irving]

Didn't get much done tonight because it was bedtime for the kiddo so I couldn't be pounding around. I had to take the end off of a custom built shelf. I didn't want to tear the whole thing off the wall, and the part I was removing was secured to another portion. I knew there were screws holding it all together, but they were hidden be 50 year-old paint that was super thick. I used a magnet to make sure I found all the screws so I didn't put any unnecessary force on the part I wanted to preserve. Magnets, how do they work?!

[Irving]

Never updated this thread. I got the two 20 amp circuits wired up without killing myself. Microwave is mounted and in service. Now I just need to finish sealing up all the cracks and spaces, then finish routing the vent and seal everything up.



This will be "boxed in" when I'm done. It will look like when you box in any other duct work, only it will only stick about 1" out from the wall. Should end up looking relatively clean, then I'm going to box in the whole water heater area anyway.

[Irving]

This looks a bit better. Tried to make it so this whole thing can be removed easy enough if I need to get back in there. This whole area will be boxed in eventually, so I'm not too worried about it. Thanks for all the help and advise for this project guys. Oh yeah, I picked up some window AC unit weather striping from Home Depot. This goes around the vent outlet to keep the air in the vent, and not blowing out the sides of the microwave.

[rockhound]

the wiring is not installed properly, unless you secured the wiring outside the juction box etc before closing up that wall. the sslack in your wiring is wrong and it is not secured within 8 inches of the outside of the box.