One, liquefied gas heater used must be pure propane gas, liquefied petroleum gas more expensive than ordinary pure propane LPG. Companies usually send LPG (liquefied petroleum gas main components include propane, butane, propylene, butylene, etc., than pure propane LPG quality is good, the price is a lot more expensive, general industrial and hotel use propane more.) Are there are cheaper liquefied propane and liquefied petroleum gas, as long as the instructions to pure propane gas purchase it. 

Use cheap LPG hazards: 1, pressure is not a small fire, the pressure will tend to decrease rapidly burn 0.5-2 hours later, the fire will become very small, does not work properly. 2, long-term use of ginseng impurities cheap gas, will heater solenoid valve malfunction or reduced sensitivity, Symptom: let go after ignition, heater off automatically expire. 

Second, due to the umbrella gas heater brought long flame feature uses a lot of trouble, two or three years the production of various manufacturers umbrella heaters basically have been canceled long flame function, so during the operation, once the control knob deflated position to continuously press the igniter should immediately until it ignited. If the action is too slow ignition will release a lot of gas, the impact of space smell. 

     Three, cabinet gas heaters are usually in addition to a file directly lit, the other two files are used to ignite a file takes about 2-3 seconds, there will be a small amount of gas is discharged within 2-3 seconds this time , resulting in space smell, and therefore do not recommend regular switch. In addition, some small factories producing shoddy cabinet heaters, 2,3 stalls ignition time is relatively long, and some even up to one minute, for this case, the user can shake hands in front of the board to accelerate the combustion air flow, so can greatly shorten the ignition time, reduce gas leaks.