My system installed in 2006: 3 ton Envision NDV038A111NTL 10 kW heater desuperheater tp32u03 Thermostat 3500sqft including finished basement We previously had a TA32W0L thermostat & recently changed to a TP32U03 thermostat a few days ago. The TP32U03 is set for multi-stage & duel fuel. All wiring copied from old thermostat. Last week when temps dropped here to -13F, the temperature from our registers when stage 3 kicked in was 110F, stage 2 was 85F & stage 1 was 82F . The furnace kept the house at 70F fine but used stage 3 a lot. This new thermostat set for multistage/dual fuel struggles to keep the house at 70F using stage 3 with an outdoor temp of 12F. Testing the new thermostat by forcing stage 3 to kick in by raising the temp 5 degrees & also tried running in emergency heat only, the register temp will not go above 95F at any time. We disabled the 10 kW heater & stage 2 is 88F. Stage 1 is 84F. There is no way the furnace will heat our house without the 110F register temp if we have outside temps like last week. What happened to the 110F register temp that we had with the old thermostat. Is there a setting in the thermostat that we are missing? Thanks for any help.