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First of all, we don't pull meters. That's a dying practice and isn't even taught anymore. Around here we don't have outside disconnects. I'm not going to go searching for a panel in a large fire and its certainly not going to be a find the panel first then fight the fire kind of thing. I...

It looks to me like somebody's first pex job. The advantage to pex is that you can run continuous supplies that snake around obstacles without having to use lots of fittings. If they had done like you wanted and used a mini manifold, it would make more sense to use the pex. As it is, its only...

Some light fixtures serve as the junction box themselves and don't need a box in the wall. You can either replace the light with one that works the same, put in a pancake box if it needs to be attached to the stud, or put in an old work box. The old work box can either be a plastic one or a...

I ended up getting an atrium grate. The hoses will be secured well above the pipe.

Good. That was essentially my plan but using a floor drain grate to secure the drains to. Thanks.

I didn't think about the chance of a backup. I can add a new trap off of the kitchen sink drain in the closet opposite the sink where there all of the appliances are located to keep the trap out of the crawlspace. I was thinking I could do this and put a floor drain fitting into the standpipe...

I'm replacing a corroded copper drain line in my crawlspace that services the kitchen sink up above. Currently, the AC, humidifier, and water softener all connect together and drain into a hole somebody drilled into the kitchen sink drain in the crawlspace. The drain hose is just siliconed...

I couldn't tell you what brand is better as I've never seen a Gentex, but Kidde is pretty well known. As for types, you want both or combination units as they both operate differently, detecting different fires at different rates. Photoelectric are generally considered better for preventing...

If I can use NM, I'm not going to the trouble of installing EMT. The only way that would make sense is if the run to the switch box was exposed and then went to the fan in the wall. Use your conduit as the ground for everything that has a metal box. For your fan, ground the switch to the box...

You have the right idea.

There is no reason not to, you just don't need to. If you already bought one, its fine to use. The only thing different really is that the prong openings can accommodate a 20 amp plug. But I've never seen any device you would use in a bathroom that uses that kind of prong orientation.

Your layout and where the wire comes into the room would determine the best way to run the wires. Code states bathroom receptacles require a 20amp GFCI circuit. You can feed the lights with this same circuit, but if you do this, the circuit cannot feed anything out of the bathroom. I'm...

I would replace every five years. If they are older than that, they probably don't work as well as they should. Its really not something you want to chance. As for the heating system, unless the furnace burned up the motor which you would definitely know about (very distinctive smell and lots...

The layout looks good. The issues I see are first of all the fernco's attaching it to the galvanized. Above ground most places and everywhere here, they must be shielded couplings. Second the traps you have pictured. If those are all glued together, what happens when you place a vanity there...

Chicago is EMTland, not Chicagoland. My house is about an hour north of Chicago and 30 minute south of Wisconsin. Here and a lot of other cities are all NM besides multi-family and commercial. Some require AC, but its better than running conduit everywhere. They still don't like plastic...

You could always use a piece of sill sealer in between the duct and the top plate. It would uncouple the two. Then screw it in place. Screws are easier overhead anyway.

I see no problem with your plan as far as the concrete work goes. Quick set is fine as long as you work fast enough. I don't think you'll need the mesh as long as you get some rebar in there and pin it to the existing slab. As for the threshold, I'd let the concrete cure, then put your...

Get yourself a closet auger. It has a bend and a protective sleeve. Next step if that doesn't work would be to pull the toilet and either try to dislodge whatever is in the toilet from the bottom, or use the easier access to get down the drain.

I take it to read that you need (2) 20A receptacles, with both according to 210.12 (B) being AFCI. This is if you are actually on the 2008 NEC. Lots of places have not adopted the AFCI portion of the code either. Check with your local building dept.

While I'm sure the roof most likely didn't cause the fire, it could certainly contribute to its damages. Two layers of roofing will just hold the roof together more and keep a fire from self-venting. It will cause heat to build up more if the fire can't vent. It would also slow down any truck...