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Copyright Solar Wave Energy

Stiebel Eltron Solar Heating System

Residential Domestic Hot Water

Western Massachusetts USA

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To change time, click and drag scroll bar at bottom of schematic. The selected time can be seen on the clock.

Hold mouse over sensor to view sensor names.

Select a day or week from calendar. This will show the average of dates selected. (ex. Tank Sensor average at 1:00pm for 1 week)

Color of sensor bubble changes as the sensor value changes. Blue indicates a low value, and red indicates a high value.

Available Sensors:
Collector (S1)
Tank Bottom (S2)
Solar Loop Cold (GDA1_RPD)
Solar Loop Flow (Minomess)
Pressure (GDA1_RPD)
Solar Loop Pump (R1)
Outdoor Ambient Temp
Use calendar to view different time spans.

Click on plot area to zoom in.

monthSummary summary
1 Therm = 100,000 BTU = 29.3 kWh
Raw data summary
Use calendar to view different time spans.

First Data Point 3-25-2018

Residential Steam Back System

Site contains:

  • 3 Stiebel Eltron SOL 27 Premium S Flat Plate Collectors. SRCC#: 2011035A
  • Gross Area of Collectors: 82.2 sq. ft (7.638 sq. m)
  • Collector Tilt Angle: 53 Degrees
  • Azimuth: 158 degrees (south east)
  • 50% Dowfrost HD Glycol in collector loop
  • FlowCon FA pump Station
  • Wilo Star S 16 Pump set to Medium (2)
  • Minol Minomess 130 Flow Meter
  • Grundfos RPD Pressure/Temperature Sensor
  • Stiebel Eltron SOM 9+ Controller
  • A Thermal-Grid DL2 to send the data to the servers
  • Solar Thermal offsets oil usage
  • Rated Power Output: 5.35 kW
  • 160 Gallon Stiebel Eltron SBB 600+ Storage Tank