Second floor heat

[Oster]

I currently have oil heat. Forced hot air (hydronic)



I have 2 zones. The second floor has 3 bedrooms a master bath and full bath.

All rooms get strong heat with air you can hear blowing. One room is a little farther away from the others. It gets very little blow and not enough heat.



I am a complete novice when it comes to HVAC so my explanation is in complete laymen’s terms.



There are 5 individual flexible tube vents coming from the heat distributor in the second floor attic. Is there a way to find out if the room with little heat is just too far a trip in the tube or are there adjustments I can * The other rooms are more than fine, some even too warm.



Thanks

[Oster]

There are 2 supply registers on the second floor. One in the master bedroom and one in the hallway. Not sure of the mototr size. Would that be on the unit in the attic or where the furnace *