I have read afew forum posts discussing the effects of physics on water temp for air bubble tubs. As we plan our master bath remodel I am leaning toward a drop in air bubble tub but do have a concern aboiut water temp. Nothing worse than a tepid tub of water when soaking an aching back or neck. I see where many have low wattage heaters but not convinced they have enough wattage to heat much.

So thats the question.. does anyone have positive experiences with an air bubble tub that has some form of a heating system (other than having an endless supply of hot water for continuous refills) that actually works? Appreciate any feedback! Thx