Wall mounting 'fireplace' runs on bio-ethanol. Available online or also through distributors in the US.

• low fuel consumption (ca. 500 ml per hour)
• even flames, even when the fuel is low
• long burning (2.5 liter capacity)
• very low heating of the housing
• ideal safety thanks to a double-walled combustion chamber
• ignition even at a very low fuel level
• infinitely adjustable regulating flaps
• unlimited usage thanks to the special ceramic combustion chamber.

"The Vision is a rectangular shaped fireplace. It is a freestanding piece of furniture designed to accept the EcoSmart™ flue less burner. The EcoSmart™ Vision features a double opening with a “see-through” effect. The double sided design features a toughened glass back which can be placed near a wall, or on display as a room divider - offering ultimate flexibility to move the fire anywhere that suits your living environment and creates an impressive centerpiece. This product provides unprecedented flexibility and is designed to meet contemporary interior styling for apartments, houses, bars and restaurants."

[posted by kris]

You might blow your entire furnishing budget on this, but it might just be worth it.
"All that effort trying to hide the traditional, bulky radiator is finally eliminated with Joris Laarman's Heat Wave Radiator. Designed with both form and function in mind, the baroque-like twists and turns of this piece are full of hidden details just waiting to be discovered with a close inspection! The design is not however just a pretty face; the form itself has more surface area than the usual radiator, hence more radiated heat."

This fireplace support is so simple and beautiful it takes my breath away.

This just went to the top of my personal wishlist:

"Blomus' indoor fireplace is a breakthrough in indoor ambience that mounts on any wall with no need for a chimney, gas line or professional installation. The fireplace installs in minutes by mounting to any wall in your home. Now, you can easily create a comforting atmosphere for your living room, bedroom, bathroom or dining room. Simply mount to the wall, fill the reservoir, light it up and enjoy.

The secret is that the flame is generated from Ethanol which is a safe, clean burning fuel that is completely organic and made from renewable resources like corn, potatoes, wheat and other vegetables. Furthermore, Ethanol is green since it is not a fossil-fuel and burning it does not increase the greenhouse effect like other fuels."

Dimensions: 27.55" W x 27.55" H x 6.29" D.

Correction: One of our chemistry-minded readers told us that the retailer's statement that ethanol is a "green" resource is not correct. While it is a renewable resource, it does increase the greenhouse effect, because any combustion reaction involving a hydrocarbon creates carbon dioxide. So while ethanol does burn cleaner than traditional fuels, it is not 100% green.
Thanks Matt!

I love the way minimal fireplaces look, but they often require a fancy architect. Here's a solution that doesn't require an architect, and as an added benefit, it's being touted as an environmentally friendly open fireplace. It's Flue less, easily transportable, does not require any installation or utility connection for fuel supply. It's fuelled by a renewable energy (Denatured Ethanol), it burns clean and is virtually maintenance free. The best part about it is that the EcoSmart® Fires can be free standing, wall mounted, fully fitted into a range of personalised finishes, shapes and colors or inserted into a closed-off fireplace. The burner can also be inserted into joinery to create a streamlined bench top feature. Without the need for flue or pipe connections, EcoSmart® Fires offer remarkable design flexibility previously unavailable to the consumer.