Hot Tub Heaters
Hot tubs heaters maximize the enjoyment of your spa experience, and also ensure that the temperature of the water in your hot tub doesn't become dangerously high. Spa and hot tub heaters are available in electric, natural gas and propane models. Solar hot tub heaters run water through glass or plastic collectors to heat at hot tub. When choosing a hot tub heater, you will want to consider the amount of BTU (British thermal unit) output. Basically, the higher the BTUs, the quicker the water will be heated. Unfortunately high BTUs also mean higher energy costs. The BTU output you choose will depend on how fast you want the water in your spa heated up.