The result is the number of hours it will take that heater to raise the water temperature 54Â¡. You'll find the 1.5 kW heater may take several days for the initial heat up. That is too long. We don't recommend this small heater. It seems that a 11.5 kW heater would be best, however they need a 60 amp circuit and can only be used where 150-200 amp service is available. Usually commercial establishments with extremely large spas and hot tubs use 11.5 kW heaters.
Two types of printers include laser and inkjet printers. An advantage of a laser printer is speed, a disadvantage is a high cost to purchase. An advantage of an inkjet printer is a low cost to purchase while a disadvantage would include the smudging and smearing that occurs before the ink dries.
Such thermal printers like credit card machines, are portable. This is probably due to the use of thermal paper in the printers. The mechanism of thermal paper removes certain features of printing machine.