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Internet # 300771432

Model # 1E78-140

Store SKU # 1002131569

70 Series Classic, Non-Programmable, Heat Only (1H/0C) Vertical Thermostat

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  • Batteries thermostat with easy-read, backlit digital display
  • Precision control of +/- 1°F provides maximum comfort
  • Works with 24-volt and millivolt systems
  • View More Details
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Product Details

About This Product

Designed to work with single-stage heating systems only is the Emerson 1E78-140 thermostat. Use it with 24-Volt and millivolt systems as it is not compatible with electric baseboard heat.

Highlights

Product Information

Internet # 300771432

Model # 1E78-140

Store SKU # 1002131569

Specifications

Dimensions: H 5.3 in, W 3.8 in, D 1.125 in

Dimensions

Display height (in.)

0 in

Display width (in.)

0 in

Product Depth (in.)

1.125 in

Product Height (in.)

5.3 in

Product Width (in.)

3.8 in

Details

Battery Power Type

Alkaline

Battery Size

AAA

Color Family

White

Control Type

Manual

Features

Battery, Low Battery Indicator

Heating & Cooling System Type

Single Stage

Included

Batteries, Mounting Hardware

Operation Type

Digital

Power Options

Hardwired

Returnable

90-Day

Shape

Rectangle

Thermostat Compatibility

Baseboard Heater

Thermostat Product Type

Non-Programmable Thermostat

Thermostat Shape

Rectangular

Thermostat Type

Heat

Voltage (V)

30 V

Voltage Type

Low Voltage

Wattage (W)

70

Wire Configuration

C-Wire

Warranty / Certifications

Certifications and Listings

No Certifications or Listings

Manufacturer Warranty

3 years

Questions & Answers

33Questions
caret
Q:Can this be used for a King electric wall heater 120V?
by|Apr 9, 2024
1 Answer
Answer This Question

A:  Hi. No, this thermostat works with millivolt and low voltage systems (20VAC-30VAC) only.

by|Apr 10, 2024
    caret
    Q:Will this work with camper propane furnace?
    by|Feb 26, 2024
    0 Answer
    Answer This Question
    caret
    Q:Will this work with a two wire gas overhead heater had a very old Honeywell that got knocked off and broken that was very basic with two wires
    by|Jan 16, 2024
    1 Answer
    Answer This Question

    A:  Hi Morris. To answer your question, yes, it will work with a 24V two-wire gas heater. Thanks.

    by|Jan 16, 2024
      caret
      Q:How low will the temperature go
      by|Dec 5, 2023
      1 Answer
      Answer This Question

      A:  Display Temperature Range 32˚F to +99˚F (0˚C to 37˚C) Setpoint Range 45˚F to 90˚F (7˚C to 32˚C)

      by|Dec 6, 2023
        Showing 1-4 of 33

        Customer Reviews

        4.7 out of 5

        • 4.7 out of 74 reviews
        • 86% recommend this product
        Filter by:
        Showing 1-10 of 74 reviews
        The Emerson heat only thermostat was easy to install. Easy...
        The Emerson heat only thermostat was easy to install. Easy functionality for a small apartment.
        by
        • Verified Purchase
        2 found this review helpful
        Burn...Baby...Burn!! This was an excellent choice for our direct-vent gas fireplace that was form...
        Burn...Baby...Burn!! This was an excellent choice for our direct-vent gas fireplace that was formerly on a toggle switch. We wanted a simple 'heat only' choice for this application. The two-wire lead connected to the thermostat perfectly and now we are enjoying regulated heat in our theater room without the worry of leaving the fireplace on or overheating the space. The unit "kicks-on...kicks-off" as heat and ambiance is desired and allows us to augment the heat in the house that our furnace provides. Our basement has traditionally been chilly without the fireplace running. We have been using this unit for two months and it has been in use day and night maintaining our space at 66* degrees when not using the room and keeping it at cozy desired temps while watching movies. Great Product!!
        by
          • Recommended
          1 found this review helpful
          Easy to install, easy to use. Keeps the room at a consistent temperature.
          by
          • Verified Purchase
          This is exactly what I've been looking for. A millivolt thermostat with the precision of a digital t-stat but without all the programmable features that we have no use for.
          by
          • Verified Purchase
          Bought this to solve problem that pilot was lit, but burner wouldn't light. Problem turned out to be insufficient flame on the thermocouple (generator). Solution was to increase pilot flame so thermocouple provided 500 mV. Williams Heater model 2509822.
          by
          • Verified Purchase
          Poor quality
          Up and down buttons have had poor response since first installation. We have had it for probably 2 years. A heater repair company installed it and it's been a hassle since. Our original thermostat lasted 60 years, this one about 2 1/2 years.
          by
            by
            • Verified Purchase
            Used for boiler furnace heat only from the 60s, works great . Got to read fine print on instructions but it's all there.
            by
            • Verified Purchase
            by
            • Verified Purchase
            Failed after one month
            The buttons function stopped working after one month of use. The dial was not illuminated which makes it less than easy to see the numbers.
            by
              3 found this review helpful
              Showing 1-10 of 74 reviews

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