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JackOfDiamonds's latest activity
J
JackOfDiamonds
replied to the thread
Attic temperatures
.
Insulation is not a problem at all. My ceiling is brand new, sealed, with plenty of fresh insulation, and the house stays perfect...
Saturday at 12:33 AM
J
JackOfDiamonds
replied to the thread
Attic temperatures
.
This is intriguing to somebody who wants to keep attic temperatures more reasonable. There's a lot of things that are safe to 120F, and...
Aug 23, 2026
J
JackOfDiamonds
replied to the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
.
A metallic raceway can often serve as a equipment grounding conductor, such that a dedicated ground wire is not required. Common cases...
Aug 21, 2026
J
JackOfDiamonds
replied to the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
.
250.118(4)
Aug 21, 2026
J
JackOfDiamonds
reacted to
sparky 1971's post
in the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
with
Like
.
Unless something has changed without me knowing about it, that's only for FMC. At least, it better be; I just installed a 200 amp 208...
Aug 21, 2026
J
JackOfDiamonds
replied to the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
.
Many types of metallic conduit can be used as EGC. A low resistance ground is required. A ground wire is not. NEC 250.118
Aug 19, 2026
J
JackOfDiamonds
posted the thread
Attic temperatures
in
Heating and A/C
.
I'm in Southern Idaho, Climate zone 5B. We have dry summers over 100F, cold winters down into the teens, low humidity, and less than 12...
Aug 19, 2026
J
JackOfDiamonds
reacted to
CGT80's post
in the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
with
Like
.
My grandmother had a big shed as a workshop. There was a post with a receptacle outside it, like for an RV. The shed plugged in and was...
Aug 14, 2026
J
JackOfDiamonds
replied to the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
.
I don't think any EVSEs require neutral. The 14-50 receptacle just became the convention for EV charging because it was the most common...
Aug 14, 2026
J
JackOfDiamonds
replied to the thread
Light bulbs for attics
.
Where do you get incandescents nowadays? My inspector said pull-chain was not code compliant anymore, and made me put a switch in the...
Aug 14, 2026
J
JackOfDiamonds
replied to the thread
it's quite common that people to think you need 3 wire plus ground for 240 volts
.
NEC allows you to use metallic conduit as ground, so it's true that you only need 2. My lathe run consists of two 12ga THHN wires in 3/4...
Aug 14, 2026
J
JackOfDiamonds
posted the thread
Light bulbs for attics
in
Lighting & Electrical
.
Building code requires lights in accessible attics. But my attic gets literally 150F during the day (I've checked). All the LED light...
Aug 14, 2026
J
JackOfDiamonds
posted the thread
favorite drywall anchors
in
General Garage Discussion
.
I'm a big fan of drywall. It's cheap, relatively fire safe, infinitely patchable, and you can hang things anywhere on it. They key for a...
Aug 1, 2026
J
JackOfDiamonds
replied to the thread
Sealing around ducts
.
That's a duct boot. What you are looking at is the side inside the AC closet, where the AC air handler will be. There will be flex duct...
Jul 14, 2026
J
JackOfDiamonds
posted the thread
Sealing around ducts
in
Heating and A/C
.
This is what the drywall looks like around my ducts. I think it should be better, both for looks, and to keep leaks out, but I don't...
Jul 13, 2026
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