Many liters of fuel per day are released in the form of steam through the vent pipe.
Favored by exposure to the wind and in most cases to the sun, they enhance evaporation, accentuating the effects of convection and venturi.
CONVECTION is the transport of heat by means of a fluid, for the case like the wood stoves or the grill when the chimney is heated a better out-flow is established increasing the flow of hot air and gases, just as in the pipe of ventilation to the sun: the gases are heated and go up escaping through the ventilation cap.
VENTURI EFFECT occurs when the air passes at speed through a narrow duct, generating negative pressures capable of sucking fluids. To "visualize" it with a very common example we can see it in the "Flit machine": the pumped air passes over a tube immersed in the insecticide that takes it out of the container, like the wind to the fuel through the ventilation pipe.
WE CAN AVOID IT, PROTECT THE ENVIRONMENT AND OUR "POCKET"
For this there is a new line of environmentally friendly products, among which are the Get Fuel ecological ventilation sockets. They remain normally closed by a magnetic diaphragm, opening and closing when it is sent or receives fuel, avoiding leaks by evaporation.
Constructed with flame retardant nylon resins, without springs, metal parts, screws or welds, they do not have oxidizable parts.