FIG. 1 is a perspective view of a first embodiment of the tankless hot water heater.
FIG. 2 is a top view of the first embodiment of the tankless hot water heater.
FIG. 3 is a left side view of the first embodiment of the tankless hot water heater.
FIG. 4 is a front view of the first embodiment of the tankless hot water heater.
FIG. 5 is a right side view of the first embodiment of the tankless hot water heater.
FIG. 6 is a bottom view of the first embodiment of the tankless hot water heater.
FIG. 7 is a perspective view of a second embodiment of the tankless hot water heater.
FIG. 8 is a top view of the second embodiment of the tankless hot water heater.
FIG. 9 is a left side view of the second embodiment of the tankless hot water heater.
FIG. 10 is a front view of the second embodiment of the tankless hot water heater.
FIG. 11 is a right side view of the second embodiment of the tankless hot water heater.
FIG. 12 is a bottom view of the second embodiment of the tankless hot water heater.
FIG. 13 is a perspective view of a third embodiment of the tankless hot water heater.
FIG. 14 is a top view of the third embodiment of the tankless hot water heater.
FIG. 15 is a left side view of the third embodiment of the tankless hot water heater.
FIG. 16 is a front view of the third embodiment of the tankless hot water heater.
FIG. 17 is a right side view of the third embodiment of the tankless hot water heater.
FIG. 18 is a bottom view of the third embodiment of the tankless hot water heater.
FIG. 19 is a perspective view of a fourth embodiment of the tankless hot water heater.
FIG. 20 is a top view of the fourth embodiment of the tankless hot water heater.
FIG. 21 is a left side view of the fourth embodiment of the tankless hot water heater.
FIG. 22 is a front view of the fourth embodiment of the tankless hot water heater.
FIG. 23 is a right side view of the fourth embodiment of the tankless hot water heater.
FIG. 24 is a bottom view of the fourth embodiment of the tankless hot water heater.
FIG. 25 is a perspective view of a fifth embodiment of the tankless hot water heater.
FIG. 26 is a top view of the fifth embodiment of the tankless hot water heater.
FIG. 27 is a left side view of the fifth embodiment of the tankless hot water heater.
FIG. 28 is a front view of the fifth embodiment of the tankless hot water heater.
FIG. 29 is a right side view of the fifth embodiment of the tankless hot water heater; and,
FIG. 30 is a bottom view of the fifth embodiment of the tankless hot water heater.
The broken lines in the figures show portions of the tankless hot water heater that form no part of the claimed design.