Sounds like she is lucky to be rid of you. Grow up.

> The same thing happens to heat a gas car, it's just using waste heat from the engine.

Most cars do not use exhaust heat to heat the cabin. They use a water to air heat exchanger that extracts heat from the water cooling system. So, combustion heats water >> water heats air.

The combustion changer takes in air from, and exhausts fumes to, outside of the room.

A heat exchanger transfers the combustion heat to the room air.

The heat exchanger circuit is hermetically isolated from the combustion chamber.

       ╔═══════════════════════════════════════════╗
       ║                                           ║
       ║                 Room                      ║
       ║                                           ║
       ║     ┌───────────────┐                     ║
───────╨─────┘ ┌───────────┐ │                     ║
> Air in       │           └─┴────────────         ║
───────╥─────┐ │           Hot room air out >      ║
       ║     │ │           ┌─┬────────────         ║
       ║     │ │           │ │                     ║
       ║     │ │           │ │                     ║
       ║     │ │           └─┴────────────         ║
       ║     │ │           Cold room air in <      ║
───────╨─────┘ │           ┌─┬────────────         ║
< Exhaust out  │   Heat    │ │                     ║
───────╥─────┐ │ exchanger │ │                     ║
       ║     │ └───────────┘ │                     ║
       ║     │   Combustion  │                     ║
       ║     │     chamber   │                     ║
       ║     └───────────────┘                     ║
       ║                                           ║
       ║                                           ║
       ╚═══════════════════════════════════════════╝

> A large absorbent 'oil change' mat in your parking space would solve this problem.

It won't magic the water away. Exactly the same amount of water will end up in the space whether the mat is there or not.

Been doing my own wiring for about 50 years.

Education. Read the appropriate wiring standards. Be compliant. Take care. Check your work. Test.

Have never had to pay an electrician to diagnose anything.

In most construction, wiring now goes in the cavity in walls.

In some places like the UK, wiring can be direclty rendered in the wall.

Skin effect utterly meaningless at low voltages in domestic and industrial systems. It is only significant in very high voltage long distance reticulation.

Yeah, and I encountered work by qualified electricians where somebody forgot to tighten a screw too.

Direct bury armoured cable.

Underground conduits tend to fill up with water.

They are learning by asking questions and getting sensible answers.

Underground conduit is rare. Armoured cable is far more common.

>currant

How many grapes per hour?

*current.

In many countries solid wire is used. Generally multi strand is only used if wires are pulled through conduits.

In domestic builds conduits are used less frequently.

She said, “You are in the desert"

Do nothing until you hate it so much that you are motivated to do the right thing and replace it.

Seriously, this is not worth expending effort on.

You know there are appropriate contexts in which rounding is acceptable, are contexts in which rounding stupid and wrong.

So not actually 20% at all.

Yes, and what is in the picture is 12 discrete LEDs.

Don't try and correct people if you don't know what the hell you are talking about.

It is already a LED lamp.

And the word is halogen, not halogenic