uzevla

Got inflatable tub, but a larger one - 290gallons. Included heater of 1.2kw is bad in two ways: 1. Working all the time to mantain the temperature, especially throughout the night. More powerful heater could be on just in the afternoon before the use. 2. When using the pool, temp gradually goes down. I can deal with 1. with a submersible heater but for two i would need to add a water heater with apump. There are options: A) inline heater. B. completely detached heater with a pump, and i would just throw the hoses over the edge of the pool. Not a big deal as i need this rarely but still want to have it. Anybody did this, have opinion ? I am thinking that a cheap heater might have a bad design, e.g. bad thermostat, if something burns the eletricity might touch water etc. I don't know... But it's got to be cheap - i got inflatable at a very good price and want to test if i like all this. So far it's all fine and i plan to get a real tub in a year or so, thus, don't want a big investment in portable at the moment.