Keystone RV review: heat/cooling systems inadequate for rv.

Purchased 2018 Keystone Montana high Country 362RD in Joly 2018, and have had issues with the heating/cooling systems provided. Since I became a full timer, this rv is unable to be cooled sufficiently in the warm months due to lack of sufficient air conditioners this unit has 5 slides and is 41ft long. Too much open space for just 2 air conditioners. The heating of this rv again is insufficient due to the fact only one heat source has been provided, again too much space to little heat source.