The only way, you will find out, is to call an HVAC person to come out and take a look. It could be that there is an easy way to relocate it, and it could be that it will be a much bigger job.

My handyman who’s helping me with other work said it’s very straightforward, he just doesn’t touch ductwork

It depends on what the run for new ductwork would be. Is there firebreaks in wall? Are joists in ceiling running so it would make duct work path easy? Is there insulation in the ceiling? Foam? What is distance? Is it for heat or cold air return? How old is the house? These are some questions a HVAC technician can investigate and assess. Then there is wall repairs and repainting. Post some photos on current location and proposed location and we might be able to help more. What is your main reason for considering this?

Would you even want a vent directly above a tub so that the air is blowing directly on you while you are sitting in the tub?

This is the current vent location. The bathtub will be blocking it when it’s installed. therefore we have to move It to the ceiling

Here is the ceiling

Having the heat vent right beside the ventilation fan is probably not a great idea. When the fan is on, it'll just be sucking the air coming out of the vent and shoving it outside instead of removing the moist air from the room.

Could you move the heat vent across the room to the other side on the floor?

The vent should be on the other side of the beams? Like where the vanity will be?

It looks like the vent is coming up from the floor below. You should be able to make a 90 degree turn and run the duct towards where the vanity will be. The duct would come up underneath the vanity and be connect to a toe kick vent in the vanity. It should be easy given the floor is open and you will be running parallel to the floor joists. There a is kit you can buy for attaching the floor vent to a vanity toe kick.

Is that better than it being in the ceiling?

Yes, particularly if you live in a colder climate.

It would keep the tile floor warmer. It works out nicely in a bathroom.

Ok great! I will definitely switch it then. Will moving it 12-15” over, away from the tub, be a good location too? Not under the vanity.

It's best if heat vents are low.

How low? Like 1” up from the floor, on the wall?

Just to make sure that we are all talking about the same location, we are saying to move it over to the right side of the room. Is that where the vanity is going to be?

I got a little confused when you said "other side of the beams". Because beams are in the ceiling.

And then you asked if you could move it 12-15" over. Are you talking about on the same wall that it's currently on? Moving sideways within that wall would be difficult because the vertical studs are in the way.

A sketch of the floor plan might help clarify the layout and the proposed locations.

Yes! It did get confusing. sorry about that....I just had an hvac guy come down. He can move the vent from where it is now, on the wall, further away from the tub and closer to the door. The vanity is not on this wall So nothing will block the vent. he will be doing it by working From under, cutting a hole in the duct in the kitchen ceiling that supplies the heat and cooling to the second floor. It’s an old house so no HVAC ducts in the attic

Where is the tub going to be located? I was initially picturing it along the left wall. Now I'm wondering if it'll actually be against the far wall running left to right.

Again, a sketch of the layout would help everyone get on the same page.

(I posted this before your response appeared above this one. Sounds like you have your solution! Glad to hear it got sorted out)

Tub is running across the width of the bathroom. vanity and toilet Are side by side

A floor vent works well. Try to position it in a spot where you are not constantly stepping on it when you enter and exit the bathroom.

Is a floor vent better than a low wall vent?

Not sure, but in a bathroom where you might be walking around dripping wet, a low wall might be better!

Glad you got the professional and got it done right. Now you can get your bathroom finished. :-)

Thank you! Yes, finally. This bathroom remodel has been a big job and long process.

And you got a very good deal as well :-)