A hot water heater, which is bombarded with cosmic and solar rays that strike our atmosphere, so as to transfer energy from the rays to the heater; the heater including a vacuum pyrex glass container of pentagonal shape when viewed from above, the container being placed upon a base, and enclosing a tubular coil, through which water or other fluids is pumped, so as to absorb the cosmic and solar ray energy, in order that heated fluid, leaving the heater, is thus utilized for various practical purposes.
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