Good outdoor patio heaters, as of 2015, are the Fire Sense 46,000 BTU patio heater and the Lava Heat Italia LHI-EMBER-51BTU patio heater. The Fire Sense model is available from Home Depot, and the Lave Heat Italia heater is available from Amazon.com.
With a rating of five out of five stars, Home Depot carries the Fire Sense model. This is a commercial grade heater made of 304 stainless steel. It is a pilotless system with a double mantle heating grid. A standard size 20-pound propane tank, such as one from a grill, powers this patio heater. There is a safety valve shut-off switch, stable base and aluminum reflector hood.
Made of all steel construction, the Lava Heat Italia patio heater has a gun metal finish. This model has an easy-start igniter and adjustable settings for heat. A standard 20-pound propane tank powers this unit, which works for up to 14 hours. It is also available with a natural gas connection. This model features a spiral flame, viewable through a Borosilicate glass tube, and a safety switch that shuts the unit off automatically.