Q:Why choose air to source heat pump? A:1.It can get 4-5 times more heat than the traditional water heater. Therefore,the heating efficiency is higher. 2.Heating with air heat source is safer than electric heating. 3.Even when it is snowing in winter, you can enjoy the 24-hour hot water service provided by the air energy water heater at any time. 4.The heat pump product has no fuel emissions,can be controled by Wifi. Q: Are you a factory or trading company? A:We are professional factory with designing, manufacturing, marketing and exporting for 20 years. Q:How can you guarantee the quality? A:80% 10 years experiences staff ,mature skilled technical team and a complete quality management system to ensure the high quality Q:What is your payment term? A:Normally 30% in advance, balance before shipment.We usually accept the payment method by TT,L/C,Western Union,Moneygram,Escrow,Paypal etc.