What's the difference between jacuzzi, hot tub and in-bath whirlpools when looking at hotel room amenities?

When I look at different amenities for hotel rooms, some list having in-bath whirlpools, others will have hot tubs or jacuzzis. What is the difference between all of these?What's the difference between jacuzzi, hot tub and in-bath whirlpools when looking at hotel room amenities?
Usually an in-bath whirlpool is just a ';big'; tub with jets to force the water around. Hot tubs and Jacuzzis are the same thing, usually always filled with water and treated just like a swimming pool and of course, ';Hot';! Jacuzzi is actually a brand of hot tubs!!What's the difference between jacuzzi, hot tub and in-bath whirlpools when looking at hotel room amenities?
in bath are in your room private


hot tubs are common rooms shared


some suites have jacuzzis all of their own
Jacuzzi is just a brand. A spa is one that you don't drian after you use it and are found outside a hotel or home it also fits more people. A whirlpool bath is one that you would drain right after you use it. They all have a heater though its option and a blower.
hot tubs-flat, few jets (I have one)


In-bath whirlpools- same things as hot tubs


Jacuzzi- comfy seating, lots of jets, tempature control.








I prefer Jacuzzis.