WB5LTR , the owner complained to me that that the heater dont work , after spending an hour checking the hosing , valves and heater cables for correct operation , every thing seemed to be doing as it should , but still no heat ! So I pulls the fan off , and found this rather strange piping arrangement inside the heater box !!!!!!! He paid $10,000 plus for this !!!!! Guarenteed to never have a core leak ay !!!
Question is , whats the easiest way to pull out the core and fit a new one ?
