The interior is decked out with an almost-queen bed that easily sleeps two, and's heated by a first-rate stainless steel propane fireplace, perfect for your closing line: "What do you say we go back to my place and heat things up? Seriously, this heater gets super hot". And the coolest part of this guy? The price. Clocking in at just $20K, you can obtain the plans and (maybe) easily build your own, if you're good with tools and measurements and stuff.