chairs & heaters mc heater cylinder or may be used with a refillable heat regulator with hi-low heat settings tipped over accidentally or if unit detects low oxygen levels stainless steel components to bring reliable heating for warmth single tank top heater full output within seconds and is economical with no electricity constructed of high quality chrome and stainless steel components to bring reliable heat on the go sold separately accidental tip-over safety shut-off perfect heating solution for small enclosed spaces control knob for ease of use with gloved hands