Its a 110v spa- so it won’t operate the jets & increase heat at the same time persay.
However, you being in east tn it’s likely not an issue.
I have a 110v w/ friction & have no issues with mine reaching 104 degrees & maintaining although mine looks to be more well insulated than yours (roto molded with spray foam much like a cooler)
You may want to insulate it well/better so it retains heat more. Doing so would likely net you more energy savings than going 220v & adding an extra heater& all the expense that comes with that.
@RDspaguy can probably give you pointers on the best way to accomplish this.
My utility bill increase was barely noticeable with the addition of my 250 gal spa (maybe $10/mo).
Being that we’re not in a location that experiences long sub zero winters like the frozen north my experience is that even in the coldest ambient temps by the time the tub temp falls to around 100 I am ready to get out anyway as it has been an hour or so. The tub is back to temp by my next soak. I often use it twice a day morning/night.
Last year during the snowpocalypse I used mine every day even when it was 0- 5 degrees outside. During milder ambient temps the water temp won’t drop as fast.
It hasn’t been mentioned yet but, make sure you purge this tub before using it. The recommended purge product here is Ahhsome - it blows all the others out of the water. It’s available on tftestkits.net & amazon.
It may require multiple purges before it comes out clean (you can use the same water).
That filter is

definitely get a replacement. Spa depot has a few ways to search for replacements if you’re unsure of what you need
Shop Quality Clarathon Hot Tub Filters by brand, size or part number using our Fast Filter Finder. Quantity Discounts available - Stock up and Save!
www.spadepot.com
Also be sure you have a proper test kit - Taylor k2006 or tf100 , also available at both those places.
Test Kits Compared
Here’s the hot tub guide
If you have a question about any information within this Sticky, please start a new thread for yourself where you will receive very quick responses to your specific questions. Thank you! Introduction There are two main things to consider when maintaining your hot tub water, Water Balance and...
www.troublefreepool.com
This guide & its bromine cousin are also pinned to the top of this subforum for convenience

I know this is more info than you asked for but I really want you to have all the info so you can start off on the right foot with your “new to you” oasis!
Happy hot tubbing
