Wondering what brand of furnace you had.  I just got a new  one here, 
but so far haven't noticed any interference.  Mine is a bryant.
73
Butch
WA0VJR

dOn Thu, 16 
Jun 2011, Pierre Berube wrote:

> I found out that my city, changed some street lights with a low energy  =
> bulbs  similar to the curly Q bulbs for the home. These bulbs give off =
> some strange noises and gives us havoc  among the ham bands.
> I wonder how these ever got past part 15 on giving off spurious  =
> interference.
> Last year my wife and I purchase a new furnace system, When it was =
> installed the dc motor gave off  interference, with the threat of =
> reporting the manufacture of not being compliant, the furnace people =
> replace  the furnace  with one that was at no charge.
> The interference that gave off from the furnace could be heard  yards =
> from my house, the wires  to my thermostat was the antenna. So perhaps =
> if my neighbors were hams and I was not  I would have caused problems  =
> for them.
> Walking around with a ,A M broadcast radio is fun sniffing out these =
> problems
> Pierre k9eye
>
>