--- product_id: 129838416 title: "Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat" brand: "white-rodgers" price: "$90.13" currency: USD in_stock: true category: "White Rodgers" url: https://www.desertcart.us/products/129838416-emerson-thermostats-white-rodgers-1e78-140-thermostat-wall-dig-heat store_origin: US region: United States of America --- # 24V & millivolt system compatible ±1°F precision control Backlit digital display Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat **Brand:** white-rodgers **Price:** $90.13 **Availability:** ✅ In Stock ## Summary > 🔥 Stay in control, stay ahead with precision comfort! ## Quick Answers - **What is this?** Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat by white-rodgers - **How much does it cost?** $90.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/129838416-emerson-thermostats-white-rodgers-1e78-140-thermostat-wall-dig-heat) ## Best For - white-rodgers enthusiasts ## Why This Product - Trusted white-rodgers brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sleek & Subtle:** Vertical, curved profile blends modern minimalism with functional design. - • **Effortless Precision:** Maintain your ideal comfort with ±1°F temperature accuracy—no guesswork needed. - • **Crystal Clear Control:** Easy-to-read backlit digital display ensures you never miss your perfect temp. - • **Seamless Compatibility:** Designed for single-stage heat systems, fitting effortlessly into your existing setup. - • **Battery Powered Freedom:** Operates on included AAA batteries—no wiring hassles, just reliable warmth. ## Overview The Emerson White-Rodgers 1E78-140 is a sleek, battery-powered, non-programmable thermostat featuring a backlit digital display and ±1°F precision control. Compatible with most single-stage heat-only systems operating at 24 volts or millivolt, it offers straightforward, reliable temperature management in a modern vertical design. ## 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. ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00204WWGE | | Backlight | Yes | | Best Sellers Rank | 1,001,011 in DIY & Tools ( See Top 100 in DIY & Tools ) 109 in Home Non-Programmable Thermostats | | Brand Name | White-Rodgers | | Colour | White | | Connectivity Protocol | BACnet MS/TP | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Button Control | | Controller Type | Push Button | | Customer Reviews | 4.5 4.5 out of 5 stars (4,349) | | Display Type | Digital | | Finish Type | Matte | | Global Trade Identification Number | 00786710518348 | | Included Components | White-Rodgers 1E78-140 Thermostat Wall Dig Heat Only | | Item Dimensions D x W x H | 2.9D x 8.1W x 13.5H centimetres | | Item Shape | Curved | | Item Type Name | White-Rodgers 1E78-140 Thermostat Wall Dig Heat Only | | Item Weight | 0.1 Pounds | | Manufacturer | White-Rodgers | | Manufacturer Part Number | 1E78-140 | | Material Type | Plastic | | Model Name | 1E78-140 | | Model Number | 1E78-140 | | Mounting Type | Wall Mount | | Number of Batteries | 3 AAA batteries required. (included) | | Number of Items | 1 | | Power Source | Battery Powered | | Product Style | Programmable | | Special Features | Easy to Read | | Specific Uses For Product | Heater | | Temperature Control Type | manual | | UPC | 786710518348 | | Unit Count | 1.0 count | | Voltage | 24 Volts | | Wattage | 45 | ## Product Details - **Brand:** White-Rodgers - **Colour:** White - **Connectivity technology:** Wired - **Controller type:** Push Button - **Included components:** White-Rodgers 1E78-140 Thermostat Wall Dig Heat Only - **Model name:** 1E78-140 - **Product dimensions:** 2.9D x 8.1W x 13.5H centimetres - **Special feature:** Easy to Read - **Specific uses for product:** Heater - **Temperature Control Type:** manual ## Images ![Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat - Image 1](https://m.media-amazon.com/images/I/319AvDw72FL.jpg) ![Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat - Image 2](https://m.media-amazon.com/images/I/319d-0Gz+qL.jpg) ![Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat - Image 3](https://m.media-amazon.com/images/I/310mH4kUFSL.jpg) ![Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat - Image 4](https://m.media-amazon.com/images/I/31e+8WU3U8L.jpg) ![Emerson Thermostats White-Rodgers 1E78-140 Thermostat Wall Dig Heat - Image 5](https://m.media-amazon.com/images/I/41jd3mXZa+L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: Does the display light up as shown in the description? That would make it easier to read.** A: Look at Answer 1 (Maina, answered on December 13, 2015). YES, it has a backlight! I just followed these instructions on my newly-installed thermostat, and it lights up beautifully. **Q: I followed the instructions to turn the backlight on. it worked first day but then stopped working. so i followed instructions again. why it stopped?** A: You probably didn't turn the 'Heat on/off' button to 'off' after setting the backlight to on. The process is: 1. Switch bottom button to 'Heat'. Press up and down arrows at same time for 2 seconds. Display alternates with FF and L flashing. 2. Push 'Up' or 'Down' button to select FF. 3. Now, make sure you set the bottom button to 'Off' to make the backlight setting permanent. Backlight will come on now whenever you press the up or down arrow buttons. Goes off after a few seconds if the buttons aren't being depressed. **Q: can i use it in an rv with a 12 (2 wire) volt system?** A: If it’s just heat only you can use it but if you have a duct system with ac and heat you cannot use it **Q: Will this work with a Cozy gas wall heater that uses 2 wires?** A: From what i learned back when i did my research is a 2 wire system will work with any 2 wire thermostat. ..it worked on mine and works perfect...and saves me on my gas bill...if your still unsure i would recommend calling the manufacturer...good luck ## Frequently Bought Together - Emerson Thermostats 1E78-140 Non-Programmable Heat Only Thermostat for Single-Stage Systems, White - Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black - Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/129838416-emerson-thermostats-white-rodgers-1e78-140-thermostat-wall-dig-heat](https://www.desertcart.us/products/129838416-emerson-thermostats-white-rodgers-1e78-140-thermostat-wall-dig-heat) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-10-16*