Altherma Hydronic System by Daikin
Why mess with a heat pump that generates only hot and cold air when
one system can supply AC, hot water, and heat through a radiator or radiant
floor? That's the level of innovation we're talking about. This system's efficiency rivals the best geothermal heat pumps—minus the pain
of underground piping.
About $19,000 for a 54,000-Btu system, intstalled; daikin.com