New Home Begins

[dstig1]

I tend to tie a bunch of lights together on a couple breakers - multiple rooms. The loads are easily low enough to do that, and it simplifies wiring, and also eases adding a generator later on if you want to. I also always wire power to the light switch as it helps future expansion into home automation. Plus being consistent is a good thing, no matter what method you choose...

Pigtails are always preferable to wiring through devices, IMHO. Just make all boxes the biggest size you can. The risk of losing ground or neutral continuity is much lower and it can help repairs down the road as pulling an outlet doesn't kill everything. To my knowledge, you are still allowed to use 15a outlets on 20A circuits in single family residential, but I like the better commercial grade outlets anyways.

 

[Obed]

When we hired our electrical sub, he said he always used 12 gauge wire and 20A breakers. I liked that because I thought I could then add extra outlets, etc. in the future. What I found out, is the electrician used 12 gauge wire and 20A breakers so he didn't have to run as many home runs as he would if he used 14 gauge wire and 15A breakers. In our house, the electrician filled each 20A circuit with the largest number of outlets that code allows. Thus, I didn't get the advantage of using 20A circuits that I had wanted. If I want to add an extra outlet anywhere, I can't use the existing nearby circuit but will have to run a new homerun to the breaker box.

 

[dstig1]

Obed, that isn't actually true. There is no specific code limit on number of outlets on a circuit in single family residential. For commercial work, there is a number, and I think it is 13 on a 20A circuit, but that does not apply to houses. It's a good rough number to stick to, but it is not concrete, by any means. If you find you need another outlet, go ahead and add it like you had planned. You obviously need to apply some thought to it so you aren't adding a new heavy load onto an already heavily loaded circuit, but that is rarely an issue in a house. Of course, you could have some local code variation that I am unaware of, but I suspect not.

All I'm saying - Not something you really need to worry about. If you need to add an outlet, go forth and tap an existing one.

 

[tkappeler]

We replaced the single circuit and breaker yesterday and foam the wires into place as he requested. Fire foam through the penetrations and ordinary foam for the remainder in the raycore. I will call for the reinspection tomorrow. Hopefully they can come back on Tuesday.

I have a plumbing question if there are any plumbers out there ... can the vent for the toilet run to the vanity beyond the toilet and be used as the drain and vent for the vanity or do each have to be separate and join them together above the flood level of the vanity? Does the tub need a vent or is it's distance ( < 2') from the 4" trunk mean it's ok based on the other venting?

Some very rough block drawing of options are below.

Thanks.

 

[Obed]

I have a plumbing question if there are any plumbers out there ... can the vent for the toilet run to the vanity beyond the toilet and be used as the drain and vent for the vanity or do each have to be separate and join them together above the flood level of the vanity? Does the tub need a vent or is it's distance ( < 2') from the 4" trunk mean it's ok based on the other venting?

Some very rough block drawing of options are below.

Thanks.

<img src="http://www.tractorbynet.com/forums/attachment.php?attachmentid=312092"/> <img src="http://www.tractorbynet.com/forums/attachment.php?attachmentid=312093"/>

I'm by no means a plumber or have any idea what the plumbing codes are. In our master bath, our toilet and sinks share the same vent. The vent is right behind the sinks but is 8 or 10 feet from the toilet drain. The toilet seems to sometimes have some smell issues. Someone we hired to replace the broken toilet drain ring said we had more gasses coming out of the drain than we should. He suspected the vent was too far from the toilet.

 

[Dr Dave]

I'm no plumber, but when I added on to my rental house, I was told any fixture 4' or more away from the main stack, required a vent. It could be a separate vent, or tied back to main stack, mine tied back, to the main stack in the attic.

Dave

 

[tkappeler]

I figured a way to have the toilet vent tie back into the vanity vent above the basin level of the vanity. The tub is within 18 inches of the 4" main and the plan was approved during the permit process for no vent on the tub as it is so close to the main.

The TJIs for the subfloor make for a tough process for running the mechanicals. So much tougher than in 1990 when I built before.

 

[Ranger Rick]

I am like you willing to do things without a plumber. In the Virginia code there is an appendix that shows something similar to what you are doing with the lav having the vent going to the vanity and then out. Lots of possibilities drawn out so I included the link for you to see. Rick

http://ecodes.biz/ecodes_support/free_resources/Virginia2009/09Residential/PDFs/Appendix%20N_Venting%20Methods.pdf

 

[Wilky]

That is called a "Pull elbow" around here, at least that's how I've heard it referred to...

His requirement for the dining room is not code that I have heard of, just his additional requirements. It's not a bad thing to do, but it isn't required by NEC to my knowledge. But his word is what rules... Does he also want it GFI as a "kitchen" circuit? Shouldn't be required unless it is near water, but since he is "making things up" you might want to check. The kitchen code requirement is for 2x 20A circuits feeding the counter top outlets. There are a couple additional points about serving/buffet areas, IIRC, but not generally for a dining table. It may have changed since I last looked, but I don't suspect so...

In all the electrical work I have done, I make ALL outlets 20A circuits, and then run lights off separate 15A circuits. Just a personal preference of mine as electrical use has only increased with time so using 12ga/20A for outlets gives you some headroom.

Nice to get past a major inspection, isn't it? :thumbsup:

It has been many years since I built but I don't think the code has changed 20 amp circuits have been required in dining rooms for a long time. But then I did the same thing made all outlets 20 amp. The inspectors comment to my wife was all dumb engineers put in 20 amp circuits. He wouldn't allow 20 amp breakers cause now get this the didn't protect extension cords. So I put in 15 amp breakers for the final inspection and replaced them with 20s later.

 

[mjncad]

Oh geez, that inspector is an idiot. And if you used pigtailed 15-amp receptacles on a 20-amp circuit that does/did allow for many years, just how is that circuit design protecting extension cords? I can see where he's coming from; but that makes him no less of an idiot in my opinion.