WaterFurnace makes a great product just for this type of project. Geothermal heat pump systems are now returning close to $5 in energy for every $1 spent running them. What a great return on the investment.
Do not forget to heat your domestic drinking water as well with this.
Here is link to their web site. http://www.waterfurnace.com/
Thanks! That looks like they specialize in exactly what we are looking for.
We use this equipment a few times a year. They are about the best one out there.
keep us posted on how you make out. Lots of photos when you do the job!