Emerson 70 Series Non-Programmable Thermostat 1E78-140

Condition: New

The Emerson 70 Series 1E78-140 is a non-programmable digital thermostat designed for single-stage heating-only systems. It provides simple, reliable temperature control without the complexity of programming. With a large digital display and push-button operation, it offers ease of use for homeowners and technicians alike. This thermostat is compatible with millivolt and low-voltage heating systems, making it ideal for furnaces, baseboard heaters, and gas fireplaces. The battery-powered operation ensures functionality even during power outages, making it a dependable choice for residential and light commercial applications.

Specifications

• Manufacturer: Emerson
• Model: 1E78-140
• Series: 70 Series
• System Compatibility:
  • Single-stage heating-only (1H/0C)
  • Works with millivolt, 24V gas, oil, and electric heat systems
• Display: Large, easy-to-read digital screen
• Temperature Control: ±1°F accuracy
• Power Source: 2 AAA batteries (no common wire required)
• Mounting Type: Horizontal
• Dimensions: 3.8” W x 1.1” D x 5.0” H
• Temperature Range: 45°F to 90°F

Features

• Simple Non-Programmable Operation – Set and adjust temperature with easy push-button controls
• Large Digital Display – Clear readout with temperature and system status
• Battery-Powered – Runs on two AAA batteries, eliminating the need for a C-wire
• Compatible with Single-Stage Heating Systems – Works with gas, oil, electric heat, and millivolt systems
• Precise Temperature Control – Maintains room temperature within ±1°F
• Easy Installation – Mounts directly to the wall with minimal wiring required

Applications

• Residential and commercial single-stage heating systems
• Gas and oil furnaces (24V)
• Electric heating systems (single-stage)
• Millivolt heating systems (gas fireplaces, floor furnaces, wall heaters)
• Baseboard heating (if compatible with low voltage systems)

Cross-Referenced Models

• White-Rodgers 1E78-140 (Same model under White-Rodgers branding)
• Honeywell TH1100DV1000 (Comparable single-stage heat-only thermostat)
• LuxPro PSD010B (Alternative non-programmable digital thermostat)
• Pro1 T701 (Similar basic digital thermostat for heat-only applications)

Comparable Products

• Honeywell TH1100DV1000 – Single-stage heat-only, non-programmable, battery-powered
• LuxPro PSD010B – Digital heat-only thermostat with similar display and controls
• Pro1 T701 – Heat-only non-programmable thermostat with a backlit screen
• White-Rodgers 1E78-151 – Same design, but supports heat/cool (1H/1C)

Compatible HVAC Systems

The Emerson 1E78-140 thermostat is commonly used with:

• Gas and oil furnaces (24V single-stage heat only)
• Electric heating systems (baseboard or forced air if compatible with low voltage)
• Millivolt heating systems (gas fireplaces, floor and wall heaters)

Related

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Common Longtail Queries

1. How to install the Emerson 1E78-140 thermostat for a gas furnace?
2. What type of heating systems is the Emerson 1E78-140 compatible with?
3. Best non-programmable thermostat for single-stage heat-only systems?
4. How to replace an old millivolt thermostat with the Emerson 1E78-140?
5. Does the Emerson 1E78-140 thermostat require a C-wire?

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