• Instant, continuous hot water supply
• Simple operation
• Produces up to 100°F  temperature rise in only 3-5 minutes
• Outlet temperatures and flow rate can be held at precise levels
• Units are pre-plumbed and pre-wired for easy installation
• Units are modular for easy expansion of your system

In the field for over 35 years, the D Series is a very reliable water heater. It is the most simple and compact of any water heater Sioux manufactures. Its rugged construction is the basis for all Sioux water heating systems. All three models come with a heavy duty welded steel skid, with provisions to bolt the skid to a concrete slab if required.

The D Series is ideal for smaller volumes of ready mix concrete 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 electicals are 115 or 230 volt/single phase.

Basic operating features include: Indicator light to alert operator that low water flow limit switch has shut down (locked out) burner due to inadequate water flow. High temperature limit switch and high temperature manual reset switch shut off burner in case of excessive water discharge temperature. ASME-rated water 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 assures foreign particles do not enter water heater supply.

• Available in Oil, LP, or Natural Gas
• No pump furnished with unit

Basic Water Heater
Sioux Model D-1000

• Oil Firing
• 1,000,000 BTU/Hour