So i am in the process of putting a cedar style hot tub in my house. The previous owner had one & I am trying to recreate the magic.
A plumber buddy of mine suggested using a heat exchanger off my oil boiler to heat the hot tub. Something similar to this:
I see a few other websites of people using this method. The hot tub & boiler room are within 20 feet of each other. My buddy is suggesting we add another heat zone for the heat exchanger, disable the electric heater that comes with the spa pack, and have the spa pack call the boiler heating when needed.
Any thoughts to this? It sound good to me but figured I would check what others have done.