Controllable formula circulating water heater case

The utility model discloses a controllable formula circulating water heater case, including the box, the interior fixed surface of box is connected with the insulation can, the inside fixedly connected with baffle of insulation can, and the top fixedly connected with hot -water tank of baffle, the box all runs through with the right side at insulation can top has the water injection pipe, and thebottom intercommunication of water injection pipe has a reposition of redundant personnel ball, and the left side intercommunication of reposition of redundant personnel ball has a spiral pipe, and the one end that the reposition of redundant personnel ball was kept away from to the spiral pipe communicates with the top of hot -water tank, the bottom intercommunication of reposition of redundant personnel ball has the inlet tube, the top of the hot -water tank left and right sides is all run through there is the connecting block, the right side of connecting block just is located the right side of hot -water tank and