Skip to main content
16 votes

Is it safe to have an unused bulb socket in my ceiling fan?

That is safe. The concern is if the socket is (a) uncovered and (b) within easy reach. You indicated it has a glass cover and ceiling fans are generally not within easy reach. Don't worry about it, ...
manassehkatz-Moving 2 Codidact's user avatar
15 votes
Accepted

How can I make my electrical box dustproof?

Use a weatherproof box and a weatherproof extension ring (or rings if you need a lot of depth) if you cannot find a weatherproof box to suit. Or, just seal up the box with duct seal (non-hardening ...
Ecnerwal's user avatar
  • 220k
15 votes
Accepted

Should lintels above wall portals be considered for smoke alarm placement?

Yes and fantastic question, the lintel/header/apron will absolutely delay detection...by quite a lot. Therefore, I absolutely agree with Jack that you need to place the detector closer (the lintel ...
Iggy's user avatar
  • 10.3k
13 votes

What’s the ampacity for 18 AWG wire, at 24 V AC

What’s the ampacity for 18 awg wire, at 24v AC Safe ampacity does not depend on voltage. However, it does depend on ambient temperature, insulation temperature rating, wire material, and other ...
ickybus's user avatar
  • 853
12 votes

Understanding the risks surrounding empty tanks & containers (propane, natural gas, septic, etc.)

The basic one common to all is that they can accumulate gasses you can't breathe, or smell. Without active ventilation (a blower, run for some time before entering and all the time a person is inside) ...
Ecnerwal's user avatar
  • 220k
10 votes

Is it safe to have an unused bulb socket in my ceiling fan?

If it isn't where someone will stick their finger or other object into the open socket, it's entirely safe. To make it even safer, leave the old bulb in place until you get the new one.
keshlam's user avatar
  • 30.3k
9 votes

Should lintels above wall portals be considered for smoke alarm placement?

The Code (See ICC R314) requires a smoke alarm located: In each sleeping room. Outside each sleeping room area in the immediate vicinity of the bedrooms. On each additional story, including a ...
Lee Sam's user avatar
  • 23.3k
6 votes

What’s the ampacity for 18 AWG wire, at 24 V AC

To answer the question you asked: Assuming you are under NEC, 310.15(B)(16) only lists 90°C for 18AWG insulation (presumably because they only expect to see it inside fixtures) at 14A for not more ...
Ecnerwal's user avatar
  • 220k
6 votes

Understanding the risks surrounding empty tanks & containers (propane, natural gas, septic, etc.)

Filling any container completely/over fill that might have held explosive/flammable contains with water or non explosive gas(CO2) before cutting/doing something that might cause sparks, should be the ...
crip659's user avatar
  • 25.7k
5 votes
Accepted

Reflective bubble insulation for making stairs fire-resistant?

Wrong rating for the wrong job The "Class A" fire rating you see on a package of reflective-bubble insulation is an ASTM E84 surface burning rating, measured using a horizontal apparatus ...
ThreePhaseEel's user avatar
5 votes

Understanding the risks surrounding empty tanks & containers (propane, natural gas, septic, etc.)

For a true explosion to happen, you need the right mixture of flammable gas and air inside a container. When the air/gas mixture is ignited, it expands quickly, breaking the container and thus the ...
Cheery's user avatar
  • 6,899
4 votes

Back stabbed outlets

A sloppy job, but you're overthinking it. Having been cut, no current is flowing through the backstab, so no heating, no arcing, no problem other than if you handle the outlet while the circuit ...
Ecnerwal's user avatar
  • 220k
3 votes
Accepted

Is it safe to use foil heat tape inside the dryer?

To be absolutely clear, this duct carries the fan-blown and lint-filtered air coming OUT of the dryer drum. It is NOT the duct carrying the heated air into the drum. Given that, the upper working ...
Daniel Griscom's user avatar
3 votes

How can I make my electrical box dustproof?

Look for switch/outlet insulators, like this one (Note: just the first one I found in a search, no recommendation of vendor or retailer implied.) It's a thin foam gasket designed to go under the cover ...
FreeMan's user avatar
  • 47.4k
3 votes

Can I connect a 1-3 adapter to a 12/3 extension cord?

So long as the total draw of all devices plugged in remains below the amp capacity of the power strip, the extension cord, the permanent wiring, and the breaker, you'll be fine. I believe the ...
FreeMan's user avatar
  • 47.4k
3 votes

Should lintels above wall portals be considered for smoke alarm placement?

Where would a potential smoke source be coming from? The direction of the Dining Room or the Living Room? Both ceilings could have a smoke detector, but if a fire only has a possibility of starting by ...
Jack's user avatar
  • 35.6k
3 votes
Accepted

Is it safe to stuff some insulation above my electric stove?

Use your exhaust fan. It removes grease, products of combustion and most of all moisture. Do you just never use your stove top? I suppose if all you ever do is microwave and use your oven you don't ...
Fresh Codemonger's user avatar
3 votes
Accepted

Part identification: Thermal cutoff within baseboard heater

Possible manufacturer could be: https://www.emerson.com/en-us/catalog/therm-o-disc-10h Product bulletin describes how the thermostat works: The 10H capillary tube is vacuum-charged with selected ...
kaigoneeme's user avatar
3 votes

Refrigerator should be away from LPG cylinder. Why?

If you are talking about a Refrigerator that runs on LP gas the tank needs to be away from the fridge because the fridge has an open flame inside, on a hot day it is possible that the LP tank can vent ...
Ed Beal's user avatar
  • 103k
3 votes

Why is my electric wall oven suddenly causing strong hot chemical odor?

When a new smell emerges immediately after electrical work, and the smell has any chance of being electrical related, that is an emergency. Fire inside the walls of a building is the most ...
Harper - Reinstate Monica's user avatar
3 votes
Accepted

Would blown-in insulation provide any degree of blocking in balloon construction?

Any insulation will slow down air convection so would be better than none. Even the wood based insulation is fire-retardant and is easy to use, it’s what we used as our first time build and the ...
Solar Mike's user avatar
  • 27.7k
2 votes

Are lightbulbs in a wooden range hood safe?

I strongly recommend against having any flammable material (wood) anywhere in, on, or around your hood. Light bulbs are the least of your worries -- imagine a grease fire. With a "normal" all-metal ...
Carl Witthoft's user avatar
2 votes
Accepted

Are lightbulbs in a wooden range hood safe?

You need a heat shield if your fixture is capable of taking an incandescent bulb. It is an immutable law of nature that if your fixture has an Edison or halogen socket that an old style light bulb ...
Harper - Reinstate Monica's user avatar
2 votes

Should I use Fire Bricks in Wood Stove

Stoves designed for firebricks should have them. Stove metal can be corroded and burn through if incorrectly used. This can be caused by poor combustion due to wet wood or poor draught. As the OP ...
Solar Mike's user avatar
  • 27.7k
2 votes

Should lintels above wall portals be considered for smoke alarm placement?

Quoting https://www.nfpa.org/News-and-Research/Publications-and-media/NFPA-Journal/2017/January-February-2017/In-Compliance/NFPA-72 If the depth of wall section above the door is 24 inches or less, ...
Criggie's user avatar
  • 10.7k
2 votes

Refrigerator should be away from LPG cylinder. Why?

As Ed touched on, LP gas canisters must be outside because they have a pressure relief valve that will vent petroleum gas. It is designed to protect the tank from exploding from overpressure. ...
Harper - Reinstate Monica's user avatar
2 votes

Extension Cords - Electrical Hazards & Safety

If it's zoned commercial, you may have some permitting issues, because inspectors are not idiots, and they know that you're going to put a Point of Sale system out on that counter/island. If that ...
Harper - Reinstate Monica's user avatar
2 votes
Accepted

Extension Cords - Electrical Hazards & Safety

This is really a subjective question, and there's a lot of slop in the definition of "temporary". If you know you'll use this space for the long term as it is, I'd work on getting some hard outlets ...
isherwood's user avatar
  • 140k
2 votes

What can be safely attached to a gas furnace cabinet?

The external surfaces of the furnace and ductwork are not hot enough to be a fire hazard with the items you listed. As we don’t know if this is a newer sealed combustion system or older gas vented ...
Ed Beal's user avatar
  • 103k
2 votes

Can I connect a 1-3 adapter to a 12/3 extension cord?

12 Gauge. 3 Conductor. USB devices are so low current I wouldn't worry about them. You can plug in as many things as you want as long as the total current is below the cord's specification.
Steve Wellens's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible