How long a run would that have to be to get a return on investment?

(Too sleepy to do the math)

--
Mike "Rocket J Squirrel" Elliott
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Westrailia: (Ladybug Trailer company, San Juan Capistrano, Calif.)
Bend, OR
KG6RCR

On 10/29/2009 7:31 PM Karl Mullendore wrote:

>> Important to recognize is that furnace blowers draw current. This one, the
>> 16,000 btu Suburban NT-16SE, wants 2.8 amps when running. One hour of
>> operation is 2.8 amp-hours, size your aux battery accordingly.
>
> Also worth considering: the Atwood/Hydroflame furnaces are only 75%
> efficient when running perfectly - Propex heaters are 95%. Throwing away a
> gallon of propane for every three that results in heated air seems a bit
> wasteful, not to mention fouling the environment more. Might that make the
> efficient Propex a better deal in the long run?
>
> Karl
>