Indoor/Outdoor Hot Water Temperature Control Zoom

Indoor/Outdoor Hot Water Temperature Control


Brand: White Rodgers

White Rodgers
1050-1 has been discontinued.
Please contact customer service at
(888) 757-4774 for help finding an alternative.



Application: Indoor-Outdoor Control
Max Temp (F): 250°F
Min Temp (F): -60°F
Switch Action: SPST
Contacts Break on Temp Rise
Max Temp Differential: 10°F
Capillary Length: Outside: 30 ft.
Inside: 15 ft.
Bulb Size: Inside: 7/16" x 3" for 1/2" NPT well
Outside: 3/8" x 3-5/8"
Electrical Rating: 7A @ 240V
14A @ 120V
Mount: Horizontal

Description for White Rodgers 1050-1

The Type 1050 Indoor-Outdoor Control is designed for use on conventional hot water heating systems where it is desired to vary boiler temperature according to outdoor weather conditions. These controls are not recommended for radiant panel installations because of the lower boiler temperatures required. Type 1050 has open-on-rise (SPST) switch action.


  • Attach Directly to Surface of Pipe. Types for use as High Limit, Reverse Acting or SPDT Switching Action Control.
  • Surface Mount (Strap-On) Hydronic Temperature Control
  • SPDT
  • Range: 100 Degrees to 240 Degrees F
  • Fixed 10 Degree F Differential

Indoor/Outdoor Hot Water Temperature Control


by PowerReviews
White RodgersIndoor/Outdoor Hot Water Temperature Control

(based on 1 review)

Ratings Distribution

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  • 4 Stars



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  • 1 Stars



Reviewed by 1 customer

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Excellent for high inertia system

By The Engineer

from Montreal, QC.

Comments about Indoor/Outdoor Hot Water Temperature Control:

I used this controller in a third attempt to stop the overshooting (sometimes 10 oF) of a high inertia system (large 3 stories building with old iron radiators ) when the outside temperature was not very cold at the begining/end of the heating system.

Standard thermostat was a mess, the electronic predictive thermostat could not figure it out either no matter how it was set. This one could.

Now it is the water temperature that is gently regulated and not the system turn off/on full blown. After 3 seasons of heating I am satisfied.

The ony drawback to that technique is that your circulating pump will run all the time to keep the water in movement, that's part of the concept for a steady temperature. Better have a silent vibration free pump or it will drive you nut. I changed it to a much smaller, adjustable volume pump. That gets you another degree of freedom for adjustement by varying the pump speed.

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