Description: The blue lai heat pump hot hydraulic engine absorbs the quantity of heat from the air, has used the free energy fully, the perfect union solar-powered water heater and the electric boiler respective merit, product one year 365 day of all-weather revolved, not heavy weather influence. The same system quantity of heat, the electricity consumption is only about electric boiler's 1/4, is the new generation conserves energy the environmental protection hot hydraulic engine, in the future 50 year human most popular heating way.