Bear with me I am new! I am getting a water to water geo unit to heat a buffer tank. With the tank I will be heating 2 concrete slabs, one in the basement and my garage floor. I will also use it to heat the water coils in my two air handlers which both have variable speed blowers The duct work will carry the majority of the load. The unit has a desuperheater that will be hooked into it own buffer tank before my water heater. Primarily heating here in Minnesota. Should I be using an outdoor reset in this situation? My quote doesn't include one. What is included is just a thermostat on the buffer tank to control temperature. Any advice would be appreciated!