To provide a heating apparatus for cultivation facilities which is free from causing wasteful pressure loss through unnecessary air flow in a fuel burning heating part even in the case of operating only a heat pump.

This heating apparatus for cultivation facilities includes separately disposing a fuel burning heating section 2 and a heat pump section 3 in cultivation facilities 1, connecting an upstream duct 5 to a heated air discharging port 23 of the fuel burning heating section 2 followed by placing the discharging port 51 near an air inhaling port 31 of the heat pump section 3, and connecting a downstream duct 6 to a heated air discharging port 32 of the heat pump section 3 followed by placing the discharging port 61 toward a ridge 11 in the cultivation facilities 1. Specifically, the apparatus includes operating the fuel burning heating section 2 and the heat pump section 3 to discharge heated air to the cultivation facilities 1 when a thermal load is more than a prescribed value, and stopping burning operation of the fuel burning heating section 2 and operating only the heat pump section 3 when a thermal load is less than the prescribed value. The area of the air inhaling port 31 of the heat pump section 3 is formed larger than that of the discharging port 51 of the upstream duct 5, and the discharging port 51 is disposed so as to fit into the area of the air inhaling port 31.

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