Radiant heating is so great that it seems that it’s too great for us to have in every home. Essentially, it’s a system to heat your house using heating tubes under the floor. Here’s a blog post on the coolness of a hot floor.

Perhaps the most appealing aspect of the radiant floor heating is that it creates not just a warm room, but an entire warm floor. The heat still rises, but it’s rising uniformly from ground zero instead of from a single fixture or a couple of vents. The result is often that rare anomaly, barefoot comfort in the dead of winter. Such systems are particularly good for homes with high ceilings, where forced-air heat often ends up where it is least needed unless the homeowner is endowed with the agility of a bat.
Not only are radiant-heat floors warm, but the system does without unsightly and space-hogging ductwork in the home. Lacking vents to keep uncovered, you can place your furniture and doodads wherever. There’s no blasting faux-desert wind wreaking havoc on the hairdo. The system is silent, and in this noise-prone day and age, that is golden. It also works well with tile and wood floors, in addition to concrete.
Not only does the home look nicer, but so do the energy bills. Because of the even heating generated by a radiant floor heating system, its thermostat may be set 2-4 degrees lower than that of a forced-air heating system. This in turn can reduce energy costs by 10-40%. (Check with your local utility company to get an estimate of how much a 2-4 degree decrease would save you).