This dc motors can be used gas water heater. 36V / 4700rpm /1. ... noise ,characteristics hard ,good starting ,long life ,etc .2.The motor can be designed and produced according to your reauest.3 ... .This dc motors can be used gas water heater. Changzhou Xiangming Electromotor ... ,Changzhou,Jiangsu,ChinaTel:+86-519-88773781 | Fax:+86-519-88390358 dc motor