Joseph Oberlander wrote:

I'd re-run it with two pieces of 12 gauge wire.

Good advice.

Those 4 pieces of telephone wire aren't 14 gauge, btw.
The look like it, but in terms
of capacity, they are closer to 20 gauge at best.

I believe that doubling the amount of copper per foot drops
you 3 wire gauges. The basic wire is 24 gauge so paralleling
two strands gets you 21 gauge, paralleling 4 gets you 18
gauge, and if you went for broke, paralleing all 8 gets you
to 15 gauge.