"Jon Danniken" wrote in message
...
Hello,

I have the need to drill a number of holes in a residential ceiling with
ceiling heat (house built in early 70's in Oregon).

As I obviously do not want to drill into any of the elements, I need to
know a method for locating the elements.

Thanks for any help with this,

Jon


I think that your best bet is thermo imaging. There are a number of methods
and devices to do this and some are pricey. I don't know if rental is an
option. There are companies that do this and can provide photographs.