Testing radiant electric ceiling heat

[spdrun]

I have an offer out on a condo with radiant electric ceiling heat. Is there any quick way to test the system? Would sticking an voltmeter across the thermostat when the stat is off be enough? i.e. you should get 240V across the open switch since an intact heating panel would act as a return.

hot 1 -> voltmeter in parallel with thermostat -> panel -> hot 2
(if it's a dual-pole stat, I could bridge one of the poles or use two voltmeters)