Solar Water Heating

Non-Pressurized Vacuum Tube Solar Water Heater

Working Principle:

Vacuum tubes absorb the solar radiation, and convert it into thermal energy, and then the thermo energy heats up the water in vacuum tubes. The heated water floats up to top of tank, and the cold water in tank goes down to fill the vacuum tube. The water in vacuum tube and water tank is finally completely heated by this circulation. This solar water heater must be installed at place high enough so that the hot water can run out by gravity.

Basic Structures of Complete Set:
(Without assistant tank) (With assistant tank)
Basic Structure of Water Tank: Photos and Specifications:

Non-Pressurized Vacuum Tube Solar Water Heater

Models Vacuum Tube Aperture Area (EN) Tank / Total Volume Dia. of
Inner / Outer Tank
Size Number Distance
RNA / RNB / RNC 58-1800-10 Dia.: 58 mm
L: 1800 mm
10 pcs 80 mm 0.94 m2 90 / 120 L 360 mm
/
470 mm
RNA / RNB / RNC 58-1800-15 15 pcs 1.41 m2 130 / 175 L
RNA / RNB / RNC 58-1800-20 20 pcs 1.89 m2 170 / 230 L
RNA / RNB / RNC 58-1800-24 24 pcs 2.26 m2 200 / 275 L
RNA / RNB / RNC 58-1800-30 30 pcs 2.83 m2 250 / 345 L
RNA / RNB / RNC 58-1800-36 36 pcs 3.39 m2 300 / 410 L
Optional Accessories:
Electric Heater, Magnesium Rod, Assistant Tank, Solar Controller.
Tube number and tank volume can be adjusted according to customers’ requirements.

Materials
  RNA RNB RNC
Outer Tank Aluminum-Zinc Steel, 0.4 mm. Color Steel, 0.4 mm. Stainless Steel 304/2B, 0.4 mm.
Inner Tank Stainless Steel 304/2B, 0.5 mm. Stainless Steel 304/2B, 0.5 mm. Stainless Steel 304/2B, 0.5 mm.
Insulation Polyurethane Foam, 55 mm Polyurethane Foam, 55 mm Polyurethane Foam, 55 mm
Vacuum Tube AL-N-AL or SS-CU-ALN/ALN 58-1800 AL-N-AL or SS-CU-ALN/ALN 58-1800 AL-N-AL or SS-CU-ALN/ALN 58-1800
Frame & Stand parts Galvanized Steel with Powder Coating, 1.5 mm thick. Galvanized Steel with Powder Coating, 1.5 mm thick. Stainless Steel 202, 1.2 mm thick.
Materials and sizes can be adjusted according to customers’ requirements.