Heating apparatus for cabin of construction equipment

A heating apparatus for a cabin of a construction equipment provided with an oil cooler inside an automotive body at the rear of the cabin, comprising:

• a duct connected to the oil cooler for guiding air flow ejected from the oil cooler, the duct including an inlet, an outlet having a grill, and an air vent,
• wherein
• the inlet of the duct is installed at the oil cooler opposite to the direction of hot air flow via the oil cooler provided from outside the automotive body so as to guide the hot air flow into the interior of the duct,
• the outlet of the duct is connected to the inlet so as to eject the hot air flow to the outside of the automotive body, and
• the air vent in the duct is formed between the inlet and the outlet so as to communicate the hot air flow provided in the interior of the duct toward the rear of the cabin;
• and
• switching means installed at the air vent of the duct selectively opens or closes the air vent for guiding the hot air flow ejected from the oil cooler to the rear of the cabin via the inlet to the rear of the cabin.