I hear you on the CO monitor.
There is no space for a wood stove.
Electricity, propane amd kerosene are the only options I can consider at this time.

__________________
1982 300SD " Wotan" ..On the road as of Jan 8, 2007 with Historic Tags

If your house is small, there are some spiffy little propane fired through the wall furnaces available....one place that has them is Grainger.

YOu could just dump heat in the space that way and run your furnace fan to distribute it.

Also some direct vent fireplaces produce up to maybe 50K btu of heat. That could be used the same way.

Around here resistance electric heat is the most expensive way to heat.

Tom W

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Bush hates fireplaces.

You don't have many options. I think everything is cheaper than Propane, unless your electric is very high. Kerosone is not cheap either. Heat pump is the most efficient there is since in theory it can put out more heat energy than the electric energy it uses. Not perpetual motion, it is just borrowing the heat from somewhere else. So you are already half way there. I think you should look into ground source heat pump if you have a little land for it. As far as the system you have you could turn the temp down and get a couple of space heaters for certain rooms. Works good unless you have a wife then its no good... You could get an energy audit and you might find ways to improve your energy effeciency.

Mike

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Take glance at this site. I know you mentioned no room for wood but these new coal stoves take very little room and the "STOKERS" are near automatic. This isn't the sooty stinkey coal of yester year . 40 lb Bagged coal is about 5.00 a bag and last about 18-24 hours and puts out ALOT of heat. We grew up burning wood and this is sooo much better in many ways. http://www.nepadigital.com/bb/index.php?sid=1483168d779ec67d91fcec2e2646e79a