Relax premier hot tub all platinum spas hot tubs come with a sealed base as standard which is integral part of the hot tubs support structure it is important to insulate your hot tubs without proper insulation a lot of valuable expensive energy you use to heat the water will be lost through the hot tub body our hot tub uses insulating foam to keep warmth of hot tub lighting scientists have claimed that the amount of lighting affects the regulation of emotions such as happiness and sadness