--- product_id: 82037358 title: "1F83H-21NP" brand: "emerson" price: "₹ 10348" currency: INR in_stock: true reviews_count: 13 category: "Emerson" url: https://www.desertcart.in/products/82037358-1f83h-21np store_origin: IN region: India --- # 24V wired power 4.5-inch backlit LCD Keypad lockout security 1F83H-21NP **Brand:** emerson **Price:** ₹ 10348 **Availability:** ✅ In Stock ## Summary > 🔥 Stay cool, stay warm, stay ahead with Emerson’s smart simplicity! 🔥 ## Quick Answers - **What is this?** 1F83H-21NP by emerson - **How much does it cost?** ₹ 10348 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/82037358-1f83h-21np) ## Best For - emerson enthusiasts ## Why This Product - Trusted emerson brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Built-in level and intuitive menu for quick, hassle-free installation. - • **Trusted Durability:** Backed by 3-year warranty and Emerson’s century-long HVAC expertise. - • **Secure & Customizable:** Lockable keypad and adjustable heat/cool limits for peace of mind. - • **Clear & Accessible Display:** Large backlit screen ensures easy temperature monitoring day or night. - • **Seamless Heat Pump Compatibility:** Optimized for dual fuel systems—no outdoor sensor needed. ## Overview The White-Rodgers Emerson 1F83H-21NP is a non-programmable, battery-powered thermostat designed for heat pumps, featuring a large backlit LCD, keypad lockout, and compatibility with dual fuel systems. It offers easy installation with a built-in level, adjustable temperature limits, and is backed by a 3-year warranty and over 100 years of HVAC reliability. ## Description Built for comfort and ease of use, this Non-Programmable Thermostat for heat pumps helps keep your home the perfect temperature. Installation is fast and straightforward. And the backlit display makes everything easy to read. Plus, it comes with the dependable performance and reliability you can count on from our 100 years of HVAC experience. Review: satisfied - fast shipping works great easy to set up well packaged Review: The best thermostat I've used... - Well designed. Perfect for controlling my dual fuel system. Eliminated a fossil fuel control board in my system. Controls temperature extremely well. Integrated perfectly with White-Rodgers control board. The instructions could be more explicit regarding thermostat auxiliary heat calls, manual heat calls, and heat pump to furnace call back during defrost. This would be very straightforward to write up. I'm speaking as an engineer... ## Features - EASY INSTALLATION: With a built-in level, straightforward set-up menu and standard footprint - NON-PROGRAMMABLE: Simple and easy to use - COMPATIBLE: Works with heat pump models including dual fuel control, no outdoor sensor required - ADVANCED FEATURES: Keypad lockout, adjustable heat/cool temperature limits - LARGE BACKLIT DISPLAY: Big, clear numbers are easy to read in low lighting - RELIABILITY: Includes 3-year manufacturer warranty. 5-year limited warranty for professional installation - PROVEN PERFORMANCE: Over 100 years of experience and excellence in HVAC ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B017ES1OUA | | Additional Features | Lockable, Low Battery Indicator, Low Voltage, Temperature Display | | Backlight | Yes | | Best Sellers Rank | #94,730 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #48 in Home Nonprogrammable Thermostats | | Brand Name | Emerson | | Color | White | | Connectivity Protocol | BACnet MS/TP | | Connectivity Technology | Wired | | Control Method | Touch | | Control Type | Button Control | | Controller Type | Hand Control | | Customer Reviews | 4.6 4.6 out of 5 stars (233) | | Display Type | LCD | | Global Trade Identification Number | 00786710551918 | | Included Components | 2 AA Batteries, Thermostat, User Manual | | Item Dimensions D x W x H | 6.3"D x 6"W x 4.25"H | | Item Type Name | Programmable | | Manufacturer | Emerson Climate Technologies | | Material Type | Plastic | | Model Name | 1F83H-21NP, 80 Series Thermostats | | Model Number | 1F83H-21NP | | Mounting Type | Wall Mount | | Number of Batteries | 2 AA batteries required. (included) | | Power Source | Battery Powered | | Product Style | Digital | | Screen Size | 4.5 Inches | | Shape | Rectangular | | Specific Uses For Product | Heat Pump | | Temperature Control Type | Heating, Cooling | | UPC | 786710551918 696498759232 | | Unit Count | 1.0 Count | | Voltage | 24 Volts | ## Product Details - **Brand:** Emerson - **Controller Type:** Hand Control - **Model Name:** 1F83H-21NP, 80 Series Thermostats - **Product Dimensions:** 6.3"D x 6"W x 4.25"H - **Special Feature:** Lockable, Low Battery Indicator, Low Voltage, Temperature Display ## Images ![1F83H-21NP - Image 1](https://m.media-amazon.com/images/I/51AcNUpzhvL.jpg) ## Questions & Answers **Q: Why no W terminal?** A: the stat is a heat pump stat will adapt for other applications in a heat mode on a Carrier heat pump O/B is not powered and Y takes the place of W1or W{same terminal } G is powered to operate the fan W2 is electric heat The first stage of heat is the "Y" energized and heat from the outside air and compresses motor heat second stage heat is W2 , W2 is also powered in stand alone for emergency heat or electric only heat when temp gets extremely low and you don't get an advantage of heat from outside air R,C,W2,E,Y,O/B,G,L. R 24vac C common W2 electric heat E emergency heat Y compressor run O/B heat /cool electrical selector G fan L I don't remember the use of this terminal see installation instructions for application if you decide to get this thermostat **Q: Does this work for a geothermal heating & air conditioner system** A: would need to know more about the requirements that your system this stat is 2 heat stages first is heat pump heat the second is heat pump heat and restive heat ,, single stage cool , our stats have been in operation on conventional heat pump air to air units for over a year with no problems,, **Q: can the 2nd stage heat (emergency) be prevented from kicking in if set only to heat and not auxiliary?** A: You can set it to “slow” which limits it but does not prevent it from coming on all together. The only way I can think of locking out w2 with this thermostat would be to leave that wire disconnected. **Q: My heat pump unit has 7 wires, red,blue,green,white,yellow, orange and brown. with a jumper for connecting r and rc. will this thermostat work for me?** A: yes ## Customer Reviews ### ⭐⭐⭐⭐⭐ satisfied *by J***N on August 22, 2025* fast shipping works great easy to set up well packaged ### ⭐⭐⭐⭐⭐ The best thermostat I've used... *by C***L on November 22, 2025* Well designed. Perfect for controlling my dual fuel system. Eliminated a fossil fuel control board in my system. Controls temperature extremely well. Integrated perfectly with White-Rodgers control board. The instructions could be more explicit regarding thermostat auxiliary heat calls, manual heat calls, and heat pump to furnace call back during defrost. This would be very straightforward to write up. I'm speaking as an engineer... ### ⭐⭐⭐⭐⭐ Simple and effective *by J***E on February 11, 2026* The best “dumb thermostat” I could find for my heat pump and air handler set up. Easy install and ability to tweak settings. Large display. Simple and effective. ## Frequently Bought Together - Emerson 1F83H-21NP Heat Pump (2H/1C) Non-Programmable Thermostat - CAMGJORT F61-2663 Wall Plate for Sen si Wi-Fi Programmable Thermostat,Hand Control, White (1) --- ## 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.in/products/82037358-1f83h-21np](https://www.desertcart.in/products/82037358-1f83h-21np) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-07-04*