Question 1

What is the outside diameter for 16 gauge? this should be included in the product details.

Accepted Answer

It's about 2.6 mm diameter

Question 2

Will this wire hold a shape such as a coil, or is it too flexible for this purpose?

Accepted Answer

It is relatively stiff for stranded wire, so yeah, i would say it would probably stay in a coil. BUT, that’s a pretty nebulous question- just like my answer. The coil size, type of support, whether it’s an open coil or wound around an armature, etc. would affect just how well it maintained that coil.  You realize the “high temperature “ part is the insulation- right?

Question 3

Is this wire appropriate for in-wall television installation above a wood burning fireplace?

Accepted Answer

You didn’t indicate if this would be for power so I can only assume. Think of this as a single stranded conductor (like any other single wire) except this one has an outer layer of white heat resistant material. Then ask yourself, “will a single conductor accomplish my goals?”.  Or, “Will two (or more) of these in the wall accomplish my goals?”. They are just wires for electrical circuits - except they have extra heat proofing. I needed it to run an ignition wire alongside a hot engine block so needed the extra heat protection. 
Be aware that the covering is white only, so multiple wires will be very easy to get mixed up unless you add colored tags or marks-a-lot to each end. And you’ll need to order an appropriate gauge for your application (14 gauge minimum for a TV by itself). 
Hope this helps you decide. If it was me I wouldn’t hesitate to use it as you described IF and ONLY IF I could clearly mark each wire as neutral or hot or ground. My thoughts there are: leave it WHITE for neutral, liberally mark both ends BLACK For hot, and GREEN for ground. If this last sentence stumps you then DO NOT proceed - get an electrician for the work.

Question 4

Do you have any AWG12  50ft ?

Accepted Answer

no

ASIN	B07W3DHBT3
Best Sellers Rank	#90,896 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #466 in Electrical Wire
Brand	Bryne
Brand Name	Bryne
Color	White
Customer Reviews	4.6 out of 5 stars 172 Reviews
Gauge	18
Manufacturer	Bryne
Material	Copper
Material Type	Copper
Number Of Wires	1
Number of Cable Strands	Multiple Strands
Number of Items	1
Number of Packs	1
Strands	Multiple Strands
UPC	761272082353
Unit Count	10 Feet
Voltage	600 volts

Bryne Mica High Temperature Wire -60~450 Degree C,Strands of Nickel plated copper wire,Insulation by Mica and Fiberglass,used in harsh environments (AWG18 10Ft)

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