Leakage gas emission system

A leakage gas emission system comprising:

• an enclosure surrounding at least part of a fuel supply system configured to supply fuel gas to a combustion device configured to combust the fuel gas with the combustion device;
• an outside emission unit configured to emit gas inside the enclosure to an outside;
• a first pipe including an inlet port at a first terminal end and an emission port at a second terminal end in the enclosure, the inlet port being provided at a position closer to a leakage spot of the fuel supply system surrounded by the enclosure than the combustion device to take in the fuel gas leaking from the leakage spot, the inlet port and the emission port respectively being at the first and second terminal ends of the first pipe, the inlet port being arranged so as to oppose the leakage spot, the emission port being exposed and open to an interior of the enclosure and being configured to emit the fuel gas toward the outside emission unit;
• and
• a surrounding portion surrounding at least a part of the leakage spot,
• wherein the inlet port is connected to the surrounding portion,
• wherein the emission port is spaced apart from the outside emission unit, and
• wherein the leakage spot is a portion of a fuel valve provided at the fuel supply system.