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This item has been discontinued and is unavailable for purchase. For more information call 1-800-GRAINGER (1-800-472-4643).

Hot Water Control

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Unavailable for purchase, product discontinued


  • Item # 2E398
  • Mfr. Model # 1050-1
  • UNSPSC # 40141609
  • Catalog Page # N/A
  • Shipping Weight 5.76 lbs.
Country of Origin Mexico Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

Indoor/Outdoor
Adjusts boiler water temperature according to outdoor air temperature. Includes outdoor sensing bulb with 30-ft. capillary and indoor insertion bulb and well with 15-ft. capillary. Insertion bulb well has 1/2" NPT thread and is 2-7/8" beyond thread.
Boiler Controls

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Technical Specs

  • Item Indoor/Outdoor Hot Water
  • Control Type Indoor/Outdoor Hot Water
  • Switch Type SPST
  • Switch Action Open on Rise
  • Height (In.) 9
  • Width (In.) 3-1/2
  • Depth (In.) 4
  • Contact Rating @ 120V (A) 14
  • Contact Rating @ 240V (A) 7
  • Differential (Deg. F) 10
  • Temp. Setting Range (F) -60 to 250
  • Features Insertion Bulb With 1/2" NPT Thread and is 2 7/8" Long Beyond Thread
  • Function Cuts Fuel Costs and Provides Closer Temperature Control, Increases/Decreases Frequency of Burner Operation to Maintain Proper Balance Between Boiler Temperature and Outdoor Temperature, Correct System Lag or Overshoot when Outdoor Air Temperature Changes
  • Includes Outdoor Sensing Bulb with 30 Feet Long Capillary and Indoor Insertion Bulb and Well with 15 Feet Long Capillary
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