Emerson Non-Programmable Heat Only Thermostat - 1E78-140

Review:

Pros:

• Easy to install and wire
• Simple operation
• Accurate temperature control
• Backlight feature
• Compatible with various heating systems

Cons:

• Instructions could be clearer
• Backlight needs to be activated manually

My Response:

Product: Emerson 1E78-140 Non-Programmable Heat Only Thermostat for Single-Stage Systems White - Automotive Parts & Accessories

Specifications:
- 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
- Brand: Emerson Thermostats
- Manufacturer: White-Rodgers
- Model Number: 1E78-140
- Manufacturer: White-Rodgers
- Part Number: 1E78-140
- Item Weight: 1.6 ounces
- Product Dimensions: 1.13 x 3.19 x 5.31 inches
- Country of Origin: China
- Item model number: 1E78-140
- Batteries: 3 AAA batteries required.
- Is Discontinued By Manufacturer: No
- Color: White
- Shape: Curved
- Voltage: 24 Volts
- Wattage: 45
- Item Package Quantity: 1
- Display Style: Digital
- Included Components: White-Rodgers 1E78-140 Thermostat Wall Dig Heat Only
- Batteries Included?: Yes
- Batteries Required?: No
- Battery Cell Type: Alkaline
- ASIN: B00204WWGE
- Customer Reviews: 4.5 out of 5 stars 2,811 ratings 4.5 out of 5 stars
- Best Sellers Rank: #13,236 in Tools & Home Improvement
- Domestic Shipping: Item can be shipped within U.S.
- International Shipping: This item can be shipped to select countries outside of the U.S.

FAQ:

Q1. Does the display light up as shown in the description? That would make it easier to read.
A1. Yes, the thermostat has a backlight. Press up and down arrows at the same time for 2 seconds to activate it.

Q2. Can I use it in an RV with a 12 (2 wire) volt system?
A2. If it is just for heat only, you can use it. However, if you have a duct system with AC and heat, you cannot use it.

Q3. Will this work with a Cozy gas wall heater that uses 2 wires?
A3. Yes, it will work with any 2-wire thermostat.

Q4. Will this thermostat work with a suburban furnace in a camping trailer?
A4. Yes, it will control the furnace but not the AC if they are on the same thermostat.

Q5. Why does it need a battery? What happens when the batteries croak? Will it stop the furnace from running?
A5. The batteries run the display and the relay on the gas valve. If the batteries go completely down, the heater will not work. The display has a low battery warning so you can replace them before heater quits working.

Q6. With what voltage is this thermostat set to operate?
A6. It operates on 0v(millivolt) to 24v. The 2 AAA batteries are there to provide current to the thermostat display and inner circuitry.

Q7. Mine shows room temp 5 degrees too high, can it be adjusted?
A7. Yes, it can be adjusted by +/-3 degrees. Directions can be found on the third page of the manual under TEMPERATURE DISPLAY ADJUSTMENT.

Overall, the Emerson 1E78-140 Non-Programmable Heat Only Thermostat for Single-Stage Systems is an easy-to-use and reliable product for controlling heating systems. The digital display with backlight makes it easy to read and adjust temperature settings. It is compatible with single-stage heat only systems and provides precision control of plus/minus 1 degree F. The thermostat requires 3 AAA batteries to operate and can be adjusted for temperature display accuracy. It is a great choice for RVs, camping trailers, and gas fireplaces.