... the efficiency heat insulating tank for users. 2. Instant heating: Direct heat design with instantaneous heating. Cold water is directly heated ... parlor and hairdressers, SPA center, etc.Specification: Ohhdil air source direct heat circulation heat pump water heaterModelORS-050D-IIORS-100D-IIORS ... Term:FOB prefered,CFR and CIF acceptable Air Source Direct Heat Circulation Heat Pump Water Heater