The best 2022 solar water heaters for whole-house residential use (not for pools, hot tubs or camping shower bags!) are available in two types, active and passive models,here we will intoduce you riwatt best selling passive stainless steel stainless steel solar water heater (GRAVITY FEED model)

 

Key Points:
♦ Model : ECOGREE
♦ Vacuum tubes : 58-1800mm,(red tube),10/12/15/20/24/30 tubes,
♦ Water tank size(inner/outer dia.) : 460/360mm or 470/360mm or 480/360mm
♦ Insulation : 50/55mm high density polyurethane
♦ Bracket : 1.2mm SUS-201 stainless steel
♦ Bolts and nuts:201 STAINLESS STEEL