I picked gas for a completely left-field reason, story: ( side note: I don't cook anything, but my wife likes the adjustability of gas burners on the stove) Years ago when we still had our little house, the ORIGINAL GAS FURNACE died in the Winter ( HVAC guys say it literally 'cooked itself' and disintegrated over so many years), and being the poor SOB, I've always been, I could not afford to replace it. So for this Winter ( 2013?, Northern Virginia) we 'got by,' by using 3 electric space heaters ( just a 1000 sq. ft. house) AND turning our gas oven ON when my wife and son got home from work around 7, ( I just played music, so home a lot in the daytime) put it at 300° ,open the oven door halfway, and keep it ON till 10:30. Turn it OFF, leave door open. This would warm up our Living room which was right off the kitchen, just fine. Not proud of this, but we made it through the Winter and were able to replace furnace before the following Winter.