We have it! The solar cells on the roof are heating the radiant floor and the domestic hot water. This should really reduce our propane usage, which is the whole point of going solar. I don't have a before picture of the mechanical room, but this is what it looks like now.
More tanks, more pipes... I'm calling to get our propane tank topped off and then we'll be able to see how much propane we'll be saving with our new system. The current price is $1.87 a gallon... down from the $2.13 we just paid on November 10th! Good thing... we need about 200 gallons to fill the tank.