That is a HUGE spa. Consider how you're going to heat that and how much you're willing to pay. I have an 8x7 integrated spa with an autocover and it can take well over an hour to heat with a 400K BTU heater when raising it from pool temp around 60 in the winter. I have a massive natural gas bill. I kinda of wish I went with what the designer recommended which was 7x7 instead of making it a little bigger because it's rarely full of people yet I pay the same to heat it just for myself.
I couldn't imagine how long it would take to heat your spa and how much it would cost. The autocover is not good at holding the heat in, if I don't mix the water between pool and spa, it'll hold high 70's to low 80's over night, but after 2 nights it's back around pool temp.
To save money I use the solar heating to raise the spa temp, I can get it up to the mid 70's and then it only takes 30-45 minutes. Once summer hits and I get the pool much warmer, it'll be less of a big deal, but this winter has been rough! The price of natural gas is insane and only going up!!
I couldn't imagine how long it would take to heat your spa and how much it would cost. The autocover is not good at holding the heat in, if I don't mix the water between pool and spa, it'll hold high 70's to low 80's over night, but after 2 nights it's back around pool temp.
To save money I use the solar heating to raise the spa temp, I can get it up to the mid 70's and then it only takes 30-45 minutes. Once summer hits and I get the pool much warmer, it'll be less of a big deal, but this winter has been rough! The price of natural gas is insane and only going up!!
