Yes, you can put a hot tub in a sunroom and many people specifically build a sunroom because they want to add a hot tub to their home. Hot tubs can be used year around in a sunroom, and they can be used regardless of whether it is raining or snowing.
Another benefit to using your hot tub in a sunroom is that it creates a bit privacy from nosy neighbors. In college my friend had a large sunroom that had a hot tub, and this was one of our favorite hangout spots for weekend parties.
I suggest opening up the windows of the sunroom when the hot tub is in use to limit the amount of condensation. Otherwise, it’s a perfect fit.
We have received so many questions on this topic, that we wrote a full guide on having a hot tub in a sunroom. If you’re question isn’t answered in that post, we’d love to hear from you so that we can make our post even more complete.