Generally outdoor heaters operate on propane, natural gas, bioethanol , wood , pellet or electricity. Each fuel type has a variety of outdoor heating styles available. Outdoor heaters that operate on propane or electricity styles include portable table top models, free-standing models, hanging and ceiling models and also wall mount models. Outdoor patio heaters that operate on natural gas are more permanent and are available in free-standing units, in-ground units and hanging units. Sinoheat will bring new products at affordable pricing regularly to satisfy customer’s various needs