The invention discloses a water tank
floor type bottomless
vacuum tube solar water heater, which can be widely applied to household and solar heating
engineering, and comprises a bottomless
vacuum tube heat collector and a
floor type insulation water tank; through natural circulation or
forced circulation, the
solar energy absorbed by the bottomless
vacuum tube can be introduced into the insulation water tank. A water tank
floor type water heater comprises an indirect natural circulation
water heater, a direct natural circulation
water heater, an indirect
forced circulation water-heating tank and a direct
forced circulation water heater, which can be suitable for different users and occasions. The water tank floor type bottomless vacuum tube
solar water heater has the advantages that: the volume of the single water tank and the thermal-arrest area are large, the application range is wide, and low-temperature safe heating can be conducted by the heat collector; the water heater is anti-freezing, and
water temperature can be adjusted; indirect circulation thermal collecting is not power-consuming; the insulation water tank is communicated with a hot water output
pipe, and the volume of the water tank of the water heater and the thermal-arrest area can be multiplied; thereby, a
water heating system of which the thermal-arrest area is in any scales within thousands of square meters and the
cycling power collecting is not power-consuming can be formed.