"trader_4" wrote in message
...
On Monday, August 11, 2014 11:01:03 AM UTC-4, Tony Hwang wrote:
TimR wrote:

That's interesting. My lights dim slightly when the heat pump
compressor kicks on, but not at all when the oven cycles.



Hi.

Motor is inductive load. Heating element inductance is negligible, it is

resistive load.

I think the bigger difference is that a central AC is a larger load
for a second than any oven. Stoves/ovens are typically on a 40A circuit,
but all the elements don't come on or off at the same time. Typicall oven
element is just a fraction of that 40A. Typical AC could pull 30, 40A
for a sec or so as it starts up.

and much more than 30, 40A for milliseconds as it starts up.