Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).


9 x 3-1/2 x 4 Indoor/Outdoor Hot Water

  • Item# 2E398
  • Mfr. Model# 1050-1
  • Catalog Page# N/A
  • UNSPSC# 40141609
9 x 3-1/2 x 4 Indoor/Outdoor Hot Water close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Product is discontinued

No alternate products can be found at this time.

See Other Options:

Shop All Hot Water Controls

Product Details

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

View More

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
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions