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Emerson 1E78-140 Non-Programmable Heat Only Thermostat for Single-Stage Systems

  • Based on 3,618 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Dec 28
Order within 12 hours and 39 minutes
Available payment plans shown during checkout

Color: White


Features

  • Easy-to-read digital display with backlight
  • Non-programmable thermostat
  • Compatible with single stage heat only systems
  • Precision control of plus/minus 1 degree F
  • Vertical profile. Thermostat Compatibility-Baseboard Heater

Description

The Emerson 1E78-140 Single Stage Thermostat Has An Easy To Read Digital Display. This Non-Programmable Thermostat Works With Most Single Stage Heat Only Systems. Is For Use On 24 Volt And Millivolt Systems. Not Compatible With Electric Baseboard Heat And Some Other Systems.

Brand: Emerson Thermostats


Model Name: 1E78-140


Item Dimensions LxWxH: 1.13 x 3.19 x 5.31 inches


Controller Type: Hand Control


Color: White


Brand: ‎Emerson Thermostats


Model Name: ‎1E78-140


Controller Type: ‎Hand Control


Color: ‎White


Specific Uses For Product: ‎Heater


Included Components: ‎White-Rodgers 1E78-140 Thermostat Wall Dig Heat Only


Item Weight: ‎1.6 Ounces


Voltage: ‎24 Volts


Shape: ‎Curved


Display Type: ‎Digital


Control Type: ‎Button Control


Backlight: ‎Yes


Wattage: ‎45


Number of Batteries: ‎3 AAA batteries required. (included)


Product Dimensions: ‎1.13"D x 3.19"W x 5.31"H


Manufacturer: ‎White-Rodgers


Part Number: ‎1E78-140


Item Weight: ‎1.6 ounces


Country of Origin: ‎China


Item model number: ‎1E78-140


Batteries: ‎3 AAA batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Item Package Quantity: ‎1


Number Of Pieces: ‎1


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Battery Cell Type: ‎Alkaline


Warranty Description: ‎Na.


Date First Available: March 23, 2009


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Digital replacement for my mercury thermostat
Color: White
My package appeared to have been opened previously with minor scuff marks and prints on the unit. No protective film or packaging. This is a replacement for an old mercury based mechanical thermostat that covers my basement zone. Electrical connection is made to a 2 wire cable. The previous thermostat mounted to a wood panel on the cinder block wall with the wire coming down from the top. This Emerson Digital model has a rectangular hole on the back but no provision for routing the cable from the top. So I mounted it to an electrical box with matching holes and provision to run the cable in from the top. Not a pretty solution, but quite acceptable for a basement wall. The only electrical modification was to clip an electric jumper on the main board for operation with a water based boiler—explained in the owner’s manual. Operation is simple. Just set the temp using the up/down arrows and the boiler should do the rest. There’s a simple off/heat switch if you want to disable the thermostat. The display panel would be easier to read if there was a backlight. It gets the job done. ... show more
Reviewed in the United States on October 17, 2023 by tourer99 tourer99

  • Great for camper
Color: White
This thermostat is awesome. It kept our camper at a perfect temperature. With the other manual thermostat would inconsistently heat to the point over overheating everyone and was really finicky. The new one is easy to use and works well in the camper and easy to install.
Reviewed in the United States on October 22, 2023 by LG 22

  • simple thermostat, but works for my pellet stove
Color: White
I replaced the one on my pellet stove because it wasn't signaling properly to start heating. this one installed and is working fine.
Reviewed in the United States on October 26, 2023 by Anthony Long

  • Operation
Color: White
Replacing existing 2 units on wall. Simple to install and setup. Supplier was easy to work with. Would buy with them again
Reviewed in the United States on October 23, 2023 by Dale P.

  • Easy to install
Color: White
Purchased because we only need to control heat!
Reviewed in the United States on October 29, 2023 by James D Dempsey Jr

  • simple and works as it should
Color: White
I like the simple design and appearance and it works as expected. I have put it in series (heat wire pass-thru) with another thermostat to limit aa senior with dementia from excessively raising the heat to 80+. For my purpose it was a great choice. The temperature reading seems to lag my other thermostat but overall works as it should. ... show more
Reviewed in the United States on August 29, 2023 by Fred

  • Perfect
Color: White
Love it, works great for a replacement thermostat for the camper, heat only. Works using two AAA batteries, and the two wires to the heater. Wush it was available in black though.
Reviewed in the United States on September 25, 2023 by Mark

  • Easy to set up.
Color: White
Got this to replace the thermostat that came with my RV . Put in the batteries and compared the readout to my house one . Works great. Now I have an actual temperature readout in my RV.
Reviewed in the United States on September 15, 2023 by John Weston

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