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. Sioux water heaters provide instantaneous, continuous hot water supply, with no preheating and no recovery time needed. Operation is simple. A 100F 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. Water heaters 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. All water heaters with the exception of the M-415 are 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.

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 water heater 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)
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

Specification Chart