Need to locate a small electric heater to keep bird bath from freezing.

Oregon aquatics sells a 50 watt birdbath De-Icer, and yes check Aquaserene. If they do not have it in stock they can order that item from Oregon Aquatics

Oregon Aquatics might have something like that but there a wholesale company, so if you dont have a landscaping business or aquatic business or another related business you might not be able to get a wholesale account. If you can't get a wholesale account check out Aqua Serene.