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I believe a 110 V spa only heats 1-2 degrees an hour. Atleast that's what I've read. And it sounds like it's a pretty close estimate from the looks of things. Since your spa is on 110V instead of a 220V configuration(I beileive you can still have it converted), your heater output is only 1000w compared to 4000w with a hardwired 220V.My J-345 is hardwired and I get between 5-6 degrees an hour from just my heater. Depending on how much I want to run my pumps during this time I can get another degree or two an hour. Anne's 6-9 degree an hour quote is either a mistype because she has something else on her mind or she has the best heater in any spa I've heard of.
Really? It would be normal to take 48 hours to heat up my spa? On a dedicated circuit?
Chill. When you bought your spa your dealer should have told you that a 110v spa takes 24 hours or so to heat.The good news is once it is up to temp you shuld have no problem maintaining the temp, as long as you are using spa no longer than about 1/2 hour at a time.If you are going to use it longer than that you should consider converting to 220v. However, at that point you have significant installation costs and I know you are on a budget.
I think you are okay. I've got a 450 gallon HS Envoy and it has only ever heated at 3-4 degrees an hour where as a lot of others on here (with 220) heat at least 6. Luckily I live in SoCal and the last time I did a water change the water started at 73 degrees. I average about 10 hours to heat, unless I do a dead of winter change and my water is a lot colder.Just make sure you are leaving the lid closed and not constantly opening it to check things. Its kind of like a crock pot, that it takes a while to recover after you remove the lid.
I just don't want to have a heating problem and fully realize it later. "limited" warranties always scare me.
Time is another limit- no spa out there has a lifetime warranty.