If you don't mind throwing away $1 for every $3 that make heat. 28 cents
sounds better.  ;-)

FWIW, the 2800's that have been tested for output have all been around
10% over stated spec. Guess they got the jetting a little big.

On 3/7/2011 3:00 PM, David Vickery wrote:
> Yes, but no one cares about 75% efficiency.  The little bit I camp in
> cold weather, I want heat.  I am not trying to be energy efficient
> when winter camping.
>
> You can replace the orifice to make the 12K BTU model a 16K or 20K
> BTU model.  The 16K puts out 12080 BTUS, which is what I have.  You
> can also swap out the blower motor with the 1.8amp motor if you have
> an older model which I also did.
>
> The older you get, the more you want things done right the first time
> without getting too hung up on cost.  And you care more about
> comfort.  So maybe in my next van, I'll try the 2015 model Propex
> 3500.