I bought the 1hp chiller to use for the heat function, so I could have a hot tub next to my cold tub. It can make the water HOT. 104 degrees was way too hot, I keep it around 86 which is perfect. I did lots of research before making this purchase, and I’m confident I made the right choice. Ryan (Orca team rep) has been very helpful and responsive. Chiller is solid, easy to set up, heats up the water quickly, so I’m assuming it chills the water quickly too. Wifi is easy to use. Price is right for 1hp with wifi and heating option. I highly recommend this chiller.