HOT AIR/HOT WATER BOILER INCLUDING CARBON HEATER, HOT AIR/HOT WATER BOILER SYSTEM INCLUDING SAID HOT AIR/HOT WATER BOILER, AND HOT AIR/HOT WATER BOILER SYSTEM FOR GREENHOUSE INCLUDING SAID HOT AIR/HOT WATER BOILER
A hot air/hot water boiler according to the present invention includes a carbon heater. The carbon heater (11) is configured from: a quartz glass pipe (21) of which one end side is closed; a heating body (25) which comprises a plurality of separately arranged composite carbons (22) having a kanthal wire (23) continuously wound thereon and having an electrically series-connected structure, and which is arranged in the quartz glass pipe; a terminal plate (26) provided with a pair of vacuum terminal components (27) which are caused to function as a +input terminal (27a) and a -input terminal (27b) arranged in a state to close an opening end side of the quartz glass pipe; a temperature blocking unit (30) comprising a quartz pipe (28) and a silica wool (29) which are closely fitted in a position between an end of the heating body and the terminal plate with respect to an inner wall of the quartz glass pipe; and a pair of connection kanthal wires (31) which connect a pair of kanthal wires wound around a pair of com
