Features and Benefits

Sioux Water Heaters provide an instant and continuous supply of hot water. Operation is simple: water at 50-100 psi is run through a heating coil, which is heated by an oil or gas burner. The heater produces up to a 100 F temperature rise within one minute of startup. Outlet temperature and flow rate can be held at precise levels. Sioux Water Heaters feature heavy-duty steel construction.

• Easy conversion from NG to LP, or LP to NG in less than five minutes and at no added cost. Heaters are also convertible from gas to oil, or oil to gas. Gas conversion is done by adding or removing one small orifice, supplied with each NG or LP heater. To convert from oil to gas, or gas to oil change the burner and burner control. All oil and gas models use identical frames, heating coils, electrical pumps, skids etc. This feature allows the customer to change to the lowest-cost fuel, and move the heater to another location where another fuel may be available.
  

• Insulation beneath the external steel jacket provides higher efficiency, reducing fuel consumption. Low temperature of steel outer jacket provides a higher safety level.
  
  
• Dual thermometers and pressure gauges provide indication of inlet and discharge water temperature and pressure, which is useful during operation and maintenance
  
  
• Flanged disconnects allow customer to easily replace the heating coil and gas burner.
  
  
• Ball valves allow easier deliming of the unit.
  
  
• Water lights alert customer of low water flow conditions.
  
  
• Modular Units allow a minimal investment to start, with the option to expand your system as your operation grows.
  
  
• Exhaust gas is separate from heated water, to produce non-contaminated hot water.
  
  
• Ease of maintenance - Simple and complete draining of coil lowers maintenance costs, reducing down time. Draining reduces risk of damage due to freezing temperatures and minimizes corrosion, increasing coil life. Coil replacement is easier and less expensive than replacing the heat exchanger of other types of water heaters.
  
  
• Optimum combustion chamber provides high efficiency, a clean burn, and low emissions.
  
  
• Three-Pass Coil Design is superior to alternative heat transfer methods, giving simple, long-lasting performance which reduces fuel consumption, saving the customer money.
  
  
• Meets Section IV of the ASME code for hot water boilers, third-party inspected to insure compliance.
  
  
• Ease of installation - A service-rated disconnect is provided on each M, HWP, PWP heater, eliminating the need to add another disconnect switch as required by the National Electrical Code. Increases safety and lowers installation cost.. Pre-plumed and pre-wired, installation is easy. Just connect the water heater to required utilities and you're ready to go. One day installation and set-up vs. as long as one to two weeks for alternative equipment. Small footprint - using as little as 3' x 6' floor space. Lower exhaust temperature of approximately 350 F, may allow using a single wall chimney vs. double wall chimney, lowering chimney installation cost, (check local codes).
  
  
• Instantaneous and continuous supply of hot water within one minute of start up vs. up to three hours with other systems.
  
  
• Stainless steel condensate collection pan prevents corrosion from condensate in exhaust fases from rusting the heater.
  
  
• High-quality power gas burner contains flame within combustion chamber, so performance does not vary with the weather. This design is ideal for high altitude installations.
  
  
• Power gas burner and gas train are UL Listed, and are built to ASME CSD-1 code.
  
  
• Standard pump and motor is a two stage, stainless steel centrifugal pump with stainless steel impellers, stainless steel housing and comes standard with a 5-HP motor. Pump life is increased due to strong corrosion resistant stainless steel. The 5-HP motor capacity exceeds previous water pump capacity. This two-stage pump provides 37% higher water flow through the heating coil, and overcomes much higher friction losses in your piping system. This reduces the temperature rise in the heater, increasing the attainable tank temperature, and reaching the desired tank temperature much faster. This also reduces burner cycling, increasing burner life. Higher flow reduces change of low-flow shutdown, even with minor liming in the system.
  
  
• Application flexibility can be run as either a once-through heater, with discharge temperatures up to 195 F, or can be used in a storage tank system where temperatures up to 190 F can be achieved. This meets the needs of a larger number of customers and applications. Wide range of options are available, such as the configuration types D, M, HWP and PWP, fuel types of NG, LP or oil. Can be designed for almost every customer voltage. Sioux can provide the best unit for your application.
  
  

The D Series is ideal for smaller volumes of water for direct feed into your ready mix truck. The D Series is also a great add-on to your present water heating system. Standard primary electricals are 115 volts/single phase/60 Hz. Standard construction features include: Indicator light to alert operator that low water flow limit switch has shut down (locked out) burner in case of excessive water discharge temperature. ASME-rated pressure relief valve opens to discharge water in case of excessive pressure buildup. Pressure gauges and bi-metal 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 heater water supply.

This system is designed for applications where there is a need for a large quantity of water in a short time period, such as when multiple ready mix trucks need to be loaded quickly. Using your vented water tank (not included), water is circulated by the pump through the heater and back into the tank, achieving the desired water temperature. Standard primary electricals are 230/3/60, 460/3/60. For additional information, see specifications page. M-Series models all 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.

On all M Series Water Heaters, choose either a Cat® 5 HP horizontal two-stage circulation pump or a Grundfus® 3 HP vertical pump. Available in:

• Oil, LP or Natural Gas
• Alternate Electricals
• Custom Designs

• liquid level sensor
• and water solenoid valve
• liquid level sight gauge
• adjustable tank temperature control with immersion well
• thermometer
• ladder
• inspection port
• motorized draft diverter/damper.

The entire system is mounted on a rugged steel skid for portability. Standard power source is 230/3/60 or 460/3/60; alternate electricals are also available.

Available in:

• Oil, LP or Natural Gas
• Alternate Electricals
• Custom Designs

Tank includes:

• liquid level sensors with water solenoid valve
• liquid level sight gauge
• adjustable tank temperature control with immersion well and thermometer
• comes complete with motorized draft diverter/damper
• the entire system is mounted on a rugged steel skid for portability.
  

Available in:

• Oil, LP or Natural Gas
• Standard with Two-Stage Circulation Pump(s) and one Single-Stage Discharge Pump
• Stainless Steel Tank Option Available