① Small area, 1/4 ~ 1/6 of vacuum tube or flat solar.
② Normally make 50-55 ℃ hot water at -45 ～ -30 ℃.
③ Compared with the traditional solar energy plus air source heat pump, the initial investment is lower.
④ It is designed to resist wind, sand, snow and hail, and there is no problem of freezing tube burst.
⑤ Clean energy, no pollution and no emissions.
⑥ Double energy guarantee, energy-saving and stable operation.
⑦Heat-conducting oil is used as the heat-conducting medium, so there is no risk of high pressure.
⑧No need to build a boiler room, non-pressure vessel, no special care, no annual inspection.