my father-in-law decided to be nice an order some for this winter until i get my EKO boiler up and going....BUT, he ordered 220V instead of 110V. can i still run 110V through them without hurting the heaters or my house??? and these have no thermostats or wiring for them. im looking for a cheap thermostat i can run to these. i thought i read they have plug in thermostats then plug the heaters into the thermostat?