We bought this two years ago and are still figuring out how to get a safe bath! We have a 40gal water heater and emptying the water heater only fills the tub half way. After that the water is cold! So we have tried displacing some of the water with a plastic 32 gal tub with bricks in it, but that still doesn't fill the tub. I have tried getting in the tub and sitting there shivering until the water reheats and I can fill it. Defeats the purpose, don't you think? We can wait until we have enough hot water and then climb over the side. At almost 80 years of age, this doesn't seem safe!