The term John is looking for is Radiant Heat Flooring. I've experienced it, and I'll probably retrofit my house with it. When the "Dream Garage" is built, it will have it as well. Rob McCall '67 LeBaron -----Original Message----- If you are going to heat it, consider the type heat that uses coils under the floor. You insulate the ground under the coils, put a little sand down, then put your coils down, and put a bunch of sand down, then pour concrete on top of the sand. You use a glycol in the system, not pure water. You can heat a buildng like yours with a 50 gallon water heater, although you can buy boilers that are a whale of a lot more efficient, but they cost a whole lot more initially. Be certain who ever designs and installs the system knows what they are doing. This is a quick and dirty explanation, but definately not the full course. ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm