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The Sioux M Series water heater has been a best seller from Sioux for over 50 years. The Sioux M Series’ three-pass coil design is superior to alternative heat transfer methods, yielding simple, long-lasting performance which reduces fuel consumption, saving you money.
Designed as modular units, the Sioux M Series water heaters allow you to make a minimal investment to start, with the option to expand your system as your operation grows. This also provides the coil water heaters a small footprint. Coming pre-plumbed and pre-wired, these heaters are simple to install. Just connect the Sioux water heater to the required utilities and you’re ready to go.