Is it matching to hold one mobile furnace on full blast hoarding to own two separate ones on the lowest settings?
Answers: I am not quite sure what your sound out is, are you trying to save money? or trying not to trip out a circuit breaker?
All electric heaters are rate in watts, primarily the higher the wattage the more warmth they will give out.
a simple formula is volts x amps = watts
here is an example of that formula.
120 volts , a circuit breaker rate at 20 amps will supply a heater rate to a maximum of 2400 watts.
If you are seeking economy this is what you could do, plug within a mobile heater and turn it on full blast, step to your electric meter and watch the dial turn, you could time the dial over a two minute length, see how many revolutions it turned.
Go final and switch off the space heater and plug in the two heaters, immediately over a two minute period see how tons times the dial turns.
The more the dial turns, the more electricity you are using, I know that sounds obvious, but masses people do not twig the principles.
hope this information was of benefit to you.
Paul M
Whatever the wattages donate up to, depends.
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