There are 61,400 BTU in a LB of Hydrogen. 1/9 of the weight
of e-gas is hydrogen. 9 LB of water makes 1860 times its volume
in e-gas  This volume of water is 0.9 X 4.55 = 4.095 Liters.
This volume of e-gas is 4.095 X 1860 =  7,616.7 liters
It takes 7,616.7 liters of e-gas (at SP&T) to contain 1 LB of hydrogen.
Therefor the BTU per liter of e-gas is 8.06. Each watt hour
of electricity contains 3.4275 BTU. If you could produce e-gas at
100% efficiency you would be producing each liter per hour with
2.3516 watts. The cell voltage here would be 1.47 volts
Since the most efficient production is about 2.71 watts.
You will find that it takes at least 15.24% more electricity to
produce the same energy in e-gas.

Standard Pressure and Temperature is 101.3 killopascals (Sea Level) and 0 Celsius.

It is only if a quantity of Monotomic hydrogen is produced
that an engine can be run on less power than it produces.
According to George Wizeman, burning Monatomic Hydrogen
produces 3.8237 times the energy of Diatomic Hydrogen.

Since both the Dad Garret Patent's modified version and the
Archie Blue patent of a carburator use air sucked through the
electrolyzer to accelerate the motion of the e-gas, there may be
a very short life time to the monotonic portion of the gas.

This lowering of the transit time to combustion may be necessary
to attain the efficiency needed to self power the electrolyser.

                                    (C)2005
The above is copywrited by Willard J. Elliott and may not be
reproduced in any form without his express written permision.