Nomura NPO-15L03 Under-Table Electric Patio Heater Perfect for keeping everyone around the patio table warm and cozy on cool evening Accommodates Patio Umbrella Posts up to 1-1/2" in Diameter; For use under the table only and not intended for free standing umbrellas Economical compared to Propane heater Convenient Simply plug into a standard 110 volt electric outlet Prewired with 6-foot Power Cord