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Premier Provider of Innovative Cleaning, Sanitizing, Disinfecting & Water Treatment Solutions since 1976
Premier Provider of Innovative Cleaning, Sanitizing, Disinfecting & Water Treatment Solutions since 1976

M Series Water Heaters

Sioux M Series

The Sioux M Series water heater has been a best seller from Sioux for over 50 years. The Sioux M Series’ three-pass heat exchanger 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. The heaters come pre-plumbed and pre-wired and have a small footprint, making them simple to install. Just connect the Sioux water heater to the required utilities and you’re ready to go. 

For applications requiring a higher tank temperature or greater control of the system, please see Sioux's WH Series water heaters.  

If you require a tank with your water heater, please see our HWP or -T models or add one of our Tank Package to your water heater.

Certifications & Standards

  • Third-party approved to UL508A and CAN/CSA-C22.2 No. 14-10, ensuring that the entire control panel assembly meets the UL and CSA standards. Canadian Registration Number (CRN).

Features

  • 1 Million BTU/hr.
  • Electrical control box includes starters for each heater/pump section. 
  • Include a service-rated electrical disconnect switch, eliminating the need to add a second service-rated disconnect switch as required by the National Electrical Code.  
  • Indicator light to alert the operator that the low water flow limit switch has shut down the burner due to inadequate water flow.
  • The temperature control switch and the manual reset high-temperature limit switch water heater shut off the burner in case of excessive water discharge temperature. 
  • ASME-rated pressure relief valve opens to discharge water in case of excessive buildup. 
  • Pressure gauges and bimetal thermometers on both inlet and outlet allow monitoring of differences between incoming and outgoing water temperature and pressure. Y-strainer on water inlet ensures foreign particles do not enter the heater water supply. 
  • Available in Diesel, LP or Natural Gas.
  • Numerous accessories are available to assist with installation. 
  • Custom designs and alternate electricals are available.

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