Ltpgtthe featured zibroamprsquos state of the art double cleanampreg chamber system maximizes fuel combustion and reduces unwanted emission gases to ultimate safety level the zibro heater has 9999 heat efficiency with infra red ray heating this heater can be installed without wires and without exhaust pipes this makes it a very convenient heating source the heater is easy to operate simply by turning the main dial to the right and push the igniter button activating the amplsq