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F.A.Q.

Water Heaters

Sioux Corporation, the #1 supplier of water heaters to the concrete industry for over 30 years, offers a variety of water heaters to fit your application. Units provide instantaneous, continuous hot water supply, with no preheating and no recovery time needed. Operation is simple. A 100°F temperature rise can be reached in only 3-5 minutes (depending on unit rating). Outlet temperatures and flow rate can be held at precise levels. Units are pre-plumbed and pre-wired for easy installation. Oil, LP or natural gas burners are available; or a combination burner which will burn any of the above fuels. Units are built to Section IV of ASME Code and are registered with the National Board of Boiler and Pressure Vessel Inspectors.

Use this chart to determine which standard model/series of Sioux Water Heater is right for your application.

For more detailed specifications on Sioux water heaters use the chart at the bottom of the page and click the arrow to the left for more information.

Model/Series:	Output:	Pumping System	Storage Tank:
D Series Ideal for smaller volumes of water for direct feed, for example, into your ready mix truck. Great add-on to your present water heating system.	1-3 Million BTU/hr (293-879 KW)	None	None
M Series Our most popular model incorporates the same basic unit as the basic water heater, plus circulating pump to draw water from the customer's holding tank. This system is designed for applications where there is a need for a large quantity of water in a short time period	1-3 Million BTU/hr (293-879 KW)	Circulating pump with optional discharge pump	Is recommended to be operated with one but does not include one
PWP Series Designed for applications such as precast, pipe, vault, prestress, or block operations, where hot water is needed on a constant basis, with a 225 gallon storage tank.	1 Million BTU/hr (293 KW)	Circulating and discharge pump	225 gallon (851.5 liter)
HWP Series Ideal for remote locations or construction sites, such as dams or bridges. This series combines the rugged Sioux Water Heater/Pumping System of the M Series with a 1,000 gallon atmospherically-vented water tank.	1-3 Million BTU/hr (293-879 KW)	Circulating and discharge pump	1,000 gallon (3784 liter)
M-415 Designed for use on Volumetric Mobile Mixers. Heater can be mounted on truck. Click on the link above for more information.	415,000 BTU/hr (120 KW)	None	None
Hybrid Water Heater Unlike any other heater on the market, the Sioux High Efficiency Hybrid Heater maximizes the benefits of coil and direct-fired heating technologies. This 3 or 6 million BTU/hr heater was designed specially for use with a storage tank.	3 or 6 Million BTU/hr (879-1758 KW)	Circulating and discharge pump	Is recommended to be operated with one but does not include one

Click here for Water Heater Brochure

For more detailed specifications on Sioux water heaters use the chart below and click the arrow to the left for more information. Consult the Sioux factory for assistance with sizing a water heater to meet your needs.

Model #

Net Heat Output
BTU / Hr

Req. Input
BTU / Hr

Boiler

115 Volt, 1 Phase, 60 Hertz

D-1000

1,000,000

1,180,000

293

D-2000

2,000,000

2,360,000

586

D-3000

3,000,000

3,540,000

879

230-460 Volt, 3 Phase, 60 Hertz

M-1

1,000,000

1,180,000

293

M-2

2,000,000

2,360,000

586

M-3

3,000,000

3,540,000

879

HWP-I

1,000,000

1,180,000

293

HWP-II

2,000,000

2,360,000

586

HWP-III

3,000,000

3,54000

879

PWP-I

1,000,000

1,180,000

293

Hybrid

3,000,000

879

Sioux Descaler -

All water heating and hot water cleaning equipment is subject to lime scale build-up which can clog nozzles, reduce heating
efficiency and shorten the life of your machine. Sioux Descaler removes scale on systems with existing scale build-up.

Click here for Sioux Descaler Literature