I keep our home heat at 71 degrees. The rack is in the dining room, the warmest room of the house.. my temps stay fine with the Helix at 94 degrees.
Keeping the heat at 82-84 degrees really sounds unhealthy though! I feel bad for whoever pays your heating bill if you keep it that hot. As it is, we do not pay for our heat, having a gas well on the land here. But still, I could not stand it to be in the 80s in our house; I think I would pass out.