still working on the rough edges but its just to save space and run at least 2 10gpm+ Pumps the heat will stay in the burnner longer and the water will travel trough the coil longer giving it a chance to heatup more, hope to hit up in the 220's+actual water temp.but the hoses are way outta my price range!!! I got scared when i got the quote for the hose and coil. so its on the back burnner for now untill he comes up with some cash.$$$ his buddy is the chemist and needs to heat the water for his new chem. not sure what it is but he said it will be sweet on grease and oil. but the cost is about $240 for 55 gal. but i will get it free to try in the feild tests. he has done some cool stuff. in his life time just wish he lived in the us. he makes chems for a PW contractor in puerto vallarta,Ixtapa,Mex.DF,last chem i got from him was good but it was an additive for my chem.