Seriously, -and I *Am* speaking from Direct Personal Experience here, -

All you need Rock Bottom, -if you have Nothing Else, is-

Several Blankets, Sweatshirts, etc. A Sleeping Bag can be thrown into the Mix too.

The Right Amount, Type, and Arrangement of these does the Job like a Charm!

On the Coldest Winter Days and Nights of Last Season (many days 18 to 22 degrees Fahrenheit, -several at a few degrees above Zero), -I was *Perfectly Toasty Warm!!!!!* With NO other Heater, Fire or Fireplace, or Heat Source or Device of any kind! (Truth is that about half such nights, -I built an "Augmenting Fire" anyway. But on all the other half, -*I did Not!*).

If it Works so Well in a Tent or Tarp Shelter, -as it *has* for me, -Then it should Work just as Well, -in any given room of a house!

Other Options as mentioned in this Thread are of course Excellent and Advisable! But this is All one Really Rock Bottom Needs!

(Again, -in case anyone's Forgotten the Point I opened with, -I here speak only from Direct Personal Experience!). [color:"black"] [/color] [email]ki4buc[/email]