Honeywell 8320 Z-Wave Thermostat shows 2 node entities?

In my Z-Wave integration I have only 1 node for the 8320 thermostat but show these 2 node entities with identical attributes

climate.honeywell_th8320_furnace
climate.honeywell_th8320_heating_1

and these node values

Temperature (Instance: 1, Index: 1)
Heating 1 (Instance: 1, Index: 1)
Furnace (Instance: 1, Index: 7)

Is anyone using this thermostat getting the same thing and which do you use, the _furnace or the _heating to control the system?