I will be hooking up my marathon buffer tank this weekend to my WF series 7 5 ton unit. I am curious if it is recommended to run the HWG year round or just during the summer. In SD2700AN, I was surprised to find that the hot water capacity is greater in heating mode than cooling mode under both partial and full load. I guess maybe I misunderstood the process in which how the unit generates hot water. I assumed I would want to shut it off during winter months not rob Peter to pay Paul. Any input or explanation to why I am confused and backwards regarding this process.