We now have a dig date at the end of May. We decided to go with a propane heater (our neighborhood is all electric). I will very rarely heat the pool so it is really just to heat the spa. The propane heater should heat the spa much quicker than the heat pump alternative I had. We also plan to put in 3-4 propane tiki torches. My options for Propnae take are a 250 or 500 gallon buried tank or a 120 gallon vertical tank above ground due to room and HOA restrictions. We planned to go with the buried 250 but tank and install is almost $2000. I am considering the 120 since it is only about $700 for tank and install. Of course both prices do not include running the lines, tiki torches etc but will be equal cost regardless. I will be running a pentair Mastertemp 400,000 btu heater. Spa will be an '8x6 square, pool will be 14,300 gallon. Like I said I don't care to heat the pool here in S Florida. Any issues going with the 120? Will it freeze up due to too much propane flow for that size tank?