Hi
If the last item was directed to me, I'm always glad to help. However, I am no expert and DON'T have the necessary qualifications.
I just picked up these tips along the way.
If you have a friendly electrician in your area, he (she?) would be the best person to advise you.
I have to say this because the law has got very picky over the last few years. You can't touch anything electrical or gas in your own house now beyond fitting a new light bulb (low energy only, of course).
However, if these suggestions help or mean you avoid a nasty accident, then I am happy I can help.
NN