All of our house has a crawl space, but our north facing kitchen. It was the old billiard room and it is cold. It registers 53 F right now when the rest of the room is 73 F.

Before we put in new flooring, I want some better heat. Electric floor mats are probably the easiest to install, but the most expensive to operate, RIGHT? Is there a good baseboard heater plan that would be efficient? What about retro fitting a floor with water heat since we have natural gas to heat the water?

The rest of the house is heated with a wood furnace and a back up natural gas furnace. We live in S W Missouri and we can have some brutal winters. Right now it is in the teens at noon.