Hayneedle offers the AZ Portable Tabletop Patio Heater in Gunmetal for $87.05 with free shipping. That's the lowest total price we could find by $13, outside of the mention below. It features up to 11,000 BTUs of heat, variable control, and 5-foot heating diameter.

A close price: Jet.com has it for $87.99 with free shipping.