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46 votes

Are there safety concerns or code violations with my added outlet and bath fan?

That is blatantly code illegal . Your alleged contractor is clearly not an electrician. This is horrible workmanship. All connections are required to be in a certified electrical box that is ...
George Anderson's user avatar
42 votes
Accepted

Should my neighbor run their AC refrigerant lines through my garage?

No, you should not run refrigerant lines through your property. There are many reasons: They will require access to the unit to repair lines. A split system, like you are suggesting, has two lines, ...
Edwin Buck's user avatar
  • 2,213
40 votes

Would it be Code legal to have an all-240V house in the United States?

Several have mentioned The required 120v circuits include 2 small appliances for kitchen counters, 1 for the laundry, 1 for the bathroom(s). But I think the main problem you run into is 210.6. 210.6 ...
Ed Beal's user avatar
  • 103k
40 votes

Would it be Code legal to have an all-240V house in the United States?

Such a fun question deserves an equally fun answer. Sure you can! And there's a neat trick that will help with all those troublesome NEC 2014/17 rules: simply make sure to build this house in a ...
Nate S.'s user avatar
  • 6,382
39 votes
Accepted

Why do single electrical receptacles exist?

There are quite a few reasons to use a single receptacle instead of a duplex receptacle. A few that I know of: Recessed for clock or behind a TV. In this case, it is sometimes easier to use with one ...
manassehkatz-Moving 2 Codidact's user avatar
34 votes

Should my neighbor run their AC refrigerant lines through my garage?

Problems that come to mind: Liability if you damage the lines. Liability if the lines damage your property. Access to the lines in the event of repair or replacement. What if the property is sold and ...
jwh20's user avatar
  • 23.4k
31 votes

Why do electricians in some areas choose wire nuts over reusable terminal blocks like Wago offers?

The reason is inertia. Wire nuts are easily available in stores. Everyone knows how to use them. Amateurs (homeowners) keep using wire nuts because they don't know of the existence of anything else ...
jay613's user avatar
  • 39.4k
30 votes

Why do single electrical receptacles exist?

Single receptacles are used for reasons Nobody installs one of these by mistake - they're a lot more expensive, to start with! When you find one, it has a specific purpose for being there because of ...
Harper - Reinstate Monica's user avatar
30 votes
Accepted

Are soldered electrical connections code-compliant?

There are better ways A wide variety of reliable splice techniques now exist. The reason for soldering "back in the day" was that manufacturing wasn't really up to making "wire nuts" and "Alumiconns" ...
Harper - Reinstate Monica's user avatar
28 votes

How to safely and legally join building wire behind drywall

The "best way" is to replace all the damaged wire. Either completely (from where it starts and ends now) or by adding two junction boxes (which must remain accessible) where you can join the ...
Ecnerwal's user avatar
  • 218k
27 votes
Accepted

Do new wire runs in an existing ceiling need to be stapled down?

If you are not removing more drywall than needed for the new recessed lights, then no per 334.30(B)(1) (assuming you are using NM cable). There are similar clauses for other flexible cable assemblies (...
statueuphemism's user avatar
25 votes
Accepted

Covering a former service panel turned junction box

Hang a nice picture over it. Easy. Cheap. No inspector can complain.
manassehkatz-Moving 2 Codidact's user avatar
24 votes

How is DIY done so much on 'fixer uppers' in areas where AHJs demand permits and licenses?

I will give you an honest answer and could care less about the upvotes/downvotes. Just my experience flipping houses in many US areas and even some overseas over 25 years. First every municipality ...
DMoore's user avatar
  • 49k
24 votes
Accepted

Can I legally add an outlet with 2 screws when the previous outlet was passthough with 4 screws?

Adding the short wire is called pigtails and it is code compliant so yes you can do this. Pigtails are a superior way of making connections in my opinion. The pigtails do not add to the wire volume in ...
Ed Beal's user avatar
  • 103k
23 votes

Are soldered electrical connections code-compliant?

In the US, most places are subject to the NEC, here is article 110.14(B): (B) Splices. Conductors shall be spliced or joined with splicing devices identified for the use or by brazing, ...
batsplatsterson's user avatar
22 votes

Can I legally add an outlet with 2 screws when the previous outlet was passthough with 4 screws?

The most important rule in NEC is 110.3(B), which requires you to follow labeling and instructions... which means read them. In this case, that only makes things better, particularly the boldface in ...
Harper - Reinstate Monica's user avatar
22 votes
Accepted

Did I Make a Major Framing Mistake?

Oh jeez Honestly you overthought all of this. This isn't a bad framing job but it certainly is odd. Why would you want to get rid of a foot of space everywhere. If you leave it like this you ...
DMoore's user avatar
  • 49k
21 votes
Accepted

Considerations for hardwiring electronics project in wall

Not only will you need to get your local inspector's approval, in writing (and the inspector will defer to Underwriter's Laboratories or other NRTL, so we're talking about getting a UL listing for ...
Harper - Reinstate Monica's user avatar
20 votes
Accepted

Interpreting stair railing code

No. It's all or nothing. Imagine a visually-impaired person (or someone in the dark) coming down your stairs and the rail ends. What's the assumption? That they've reached the bottom. That can end ...
isherwood's user avatar
  • 139k
20 votes

Why do electricians in some areas choose wire nuts over reusable terminal blocks like Wago offers?

Because the big box stores haven't made selling these a priority. Let's face it if Joe-Average homeowner saw these first at big blue/orange/green and they were readily available, they would ...
DMoore's user avatar
  • 49k
19 votes

Can cable splice devices be concealed?

The use of these devices is limited to specific situations, which are described in 334.40(B) of the National Electrical Code. The 2011 version of the code had this to say. National Electrical Code ...
Tester101's user avatar
  • 132k
19 votes
Accepted

Do the quick connectors in my new bathroom fan need to be in a junction box?

All connections must be in a junction box. They're mentioned several times in the instruction manual. Pull the wire through the hole and into the junction box (not included). Using a quick ...
isherwood's user avatar
  • 139k
19 votes

Can I use green wire in a residential wall box?

Green wire is perfectly legit. If you are really lazy or in a hurry you can even get pre-cut pre-stripped green grounding pigtails ready to go. Ground is the only thing it can be used for, but "...
Ecnerwal's user avatar
  • 218k
19 votes
Accepted

Is there any way for a consumer to confirm that a device is actually UL listed?

Yes, UL has an online database that you can search: https://productiq.ulprospector.com/en/search It helps to have the product’s UL file number (which should be on the product near the UL logo and/or ...
nobody's user avatar
  • 6,738
18 votes

What NEC section, if any, covers an owner wiring their own home?

In general, the NEC (or any other code for that matter) specifies how the work must be done, but does not touch on who the work must be done by. The who is covered by local statutes (whether city, ...
mmathis's user avatar
  • 8,872
18 votes

Can I cover an outlet with homemade 3D-printed covers?

They make "electrical outlet plug covers" for that purpose. They're cheap and available many places...I'd just get those. If you're good with electrical and have a lot of time, you could go ...
heyitsmyusername's user avatar
17 votes

Is this wiring safe and is it according to code?

There is one safety issue here It appears that the original installer took the ground wire from the 12/3 cable, looped it around one switch ground screw, then attached it to the other switch ground ...
ThreePhaseEel's user avatar
17 votes

Do my exterior GFCI outlets really need to be on their own circuit?

A private buyer's inspector can write whatever they want. Some have a reputation for being minimalistic that gets them referrals from selling agents, some have a reputation for being "tigers&...
jay613's user avatar
  • 39.4k
17 votes
Accepted

Do I need to replace 14-Gauge Wire on 20-Amp Circuit?

Except when there is an actual danger right now (there isn't), the problem is always the future. It is extremely unlikely that any future homeowner or electrician doing additional work will notice the ...
manassehkatz-Moving 2 Codidact's user avatar
17 votes
Accepted

Is my contractor right that our nonreturnable hardwired heated towel rack can't be installed in our bathroom?

Ask your contractor to specify exactly which regulation requires that IPX4 rating. Keep in mind that NKBA is not a legally mandated certification, so if the contractor says that it's an NKBA thing, it ...
RibaldEddie's user avatar
  • 2,420

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