---
product_id: 2336324
title: "TH1100DV1000 Pro-Digital 2-Wire Heat Only"
brand: "honeywell"
price: "2666129₫"
currency: VND
in_stock: true
reviews_count: 11
category: "Honeywell"
url: https://www.desertcart.vn/products/2336324-th1100dv1000-pro-digital-2-wire-heat-only
store_origin: VN
region: Vietnam
---

# Backlit easy-read display Battery powered (2x AAA) Adjustable temp scale 40-90°F TH1100DV1000 Pro-Digital 2-Wire Heat Only

**Brand:** honeywell
**Price:** 2666129₫
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your heat game with precision and style!

## Quick Answers

- **What is this?** TH1100DV1000 Pro-Digital 2-Wire Heat Only by honeywell
- **How much does it cost?** 2666129₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/2336324-th1100dv1000-pro-digital-2-wire-heat-only)

## Best For

- honeywell enthusiasts

## Why This Product

- Trusted honeywell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Heat Control:** Maintain your comfort within 1°F accuracy—no more overheating or chills.
- • **Always-On Ambient Display:** Stay informed with constant real-time temperature readings on a crisp backlit screen.
- • **Minimalist Heat-Only Design:** Streamlined, no-fuss control focused solely on heating—perfect for efficient winter warmth.
- • **Built-In Compressor Protection:** Safeguard your heating system with smart automatic compressor safeguards.
- • **Effortless Setup & Replacement:** Fits perfectly over legacy two-wire systems for a seamless upgrade without wall patching.

## Overview

The Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only thermostat is a battery-powered, backlit digital thermostat designed for simple, reliable heat control. It replaces older analog two-wire heat-only thermostats with precise temperature management from 40°F to 90°F, featuring easy installation, ambient temperature display, and built-in compressor protection. Ideal for professionals seeking a minimalist, efficient heating upgrade.

## Description

Features:Backlit display is easy to readDisplays ambient (measured) temperature at all timesOne-touch access to setpoint temperatureBuilt-in compressor protection.Please note: Make sure heating and cooling temperatures are set to acceptable ranges:Heat: 40° to 90°F (4.5° to 32°C).

Review: The best upgrade you can do for your trailer - Works perfectly as a replacement for the manual two-wire factory thermostat. Easy to install. Only works for controlling your furnace not for combination ac/heater thermostats!! Very glad I did this replacement because the switch to turn the factory unit on/off was so tight it hurt my finger plus its spring was very iffy for setting the temperature. During the winter I keep the furnace turned on but the thermostat set at 35 degrees (which is its lowest setting) so it will kick on only when temps get close to freezing. Went thru a winter season winterized once so far and it used just a little propane from one of my tanks since our winters aren't very bad. YMMV.
Review: An excellent choice for replacing older verticle shaped heat only analog thermostats - This Honeywell TH1100DV1000 Pro Digital Heat only thermostat replaced a more than fifty year old General Controls brand model T-80 analog thermostat that wasn't reliably controlling an old natural gas "gravity" furnace. The old analog thermostat wasn't reliably turning the furnace on or off. It would often fail to turn off the furnace within a reasonable range of the set temperature. More often than not it would fail to turn the furnace on at all regardless of the set temperature. The natural gas furnace and the thermostat had been serviced and checked several times in the past by a HVAC technician who indicated that everything seemed to be working ok but for whatever reason my experience was that it was not reliably turning on. Before I removed the old analog thermostat I used a digital multi-meter to read the voltage and polarity of the heat only system and used red and white colored electrical tape to wrap and mark the two wires. I measured 450 millivolts DC and marked the positive side wire as red and the other wire as white. I removed the old vertical shaped metal cased thermostat and this new vertical digital thermostat back plate fit exactly over where the old thermostat had been so I did not have to paint, patch or cover any unsightly difference for the new thermostat wall plate. I was also able to re-use the older wall plate screws to mount the new wall plate. I did notice that the hole behind the thermostat wall plate was a few inches high and and inch wide. I had read that a large hole behind the wall plate can cause cold wall drafts that can negatively effect thermostat temperature readings. I used strips of thick extra sticky Gorilla (restricted trade mark) brand tape to cover that large opening and cut small holes for the two wires and wall plate screws. I connected the two wires to R for red and W for white (C was not used for my two wire millivolt system) onto the wall plate wire junction according to the simple instructions provided in the new thermostat booklet, placed the included AAA batteries into the new Honeywell thermostat (required for a millivolt heat only system) and I pushed it over the plastic wall plate. I left the new digital thermostat's advanced settings as default. I turned the simple switch to Heat On and set a temperature for testing. The final result is that this new Honeywell digital thermostat is working perfectly. The natural gas furnace turns on and off when it should. The furnace now cycles as needed to maintain the temperature within one degree of the set temperature. It doesn't overheat or under heat like the old analog thermostat used to do. I really like the minimalist non-programmable, single switch, heat only design. The only decision I had to make was what temperature to set on my new digital thermostat. In conclusion this is an excellent choice for anyone looking to replace newer or older two wire heat only analog thermostats. Notes: I purchased this thermostat from Filter Pro, Fulfilled by desertcart. Filter Pro was great.Their delivery was fast and on time. I ended up changing the cycle rate in the advanced settings mode (using the simple directions) from the default of "5" CPH to "4" CPH. The cycles per hour setting or CPH tries to adjust how many times the heating system is supposed to cycle on and off every hour. CPH is usually optimized for each type of heating system to improve the heating efficiency and energy usage. Even analog thermostats utilize a type of predictive CPH setting. For many basement gravity heating systems in larger homes the CPH recommendation can be as low as "1" or "2" because older gravity heat systems usually require a longer time for the entire system to heat up and for the heat to dissipate into the entire house. However it depends on the size of the home, size of the gravity heater system, how well the home is insulated, seasonal cold outdoor temperatures, etc.. For my smaller and poorly insulated one story home with a smaller gravity heat system a CPH of "3" or "4" seems to work best. You can refer to the included instruction booklet and test what setting works for your home (it's very easy to change it) or contact Honeywell or your local HVAC technician for recommendations on the CPH setting for your home and heating system.

## Features

- Adjustable Temperature Scale: Standard Selection Of 40 To 90F
- Backlit Display Is Easy To Read
- Displays Ambient (Measured) Temperature At All Times.
- Brand Name: Honeywell
- Power source type: Battery Powered

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00H6ARNXO |
| Backlight | Yes |
| Batteries | 2 AAA batteries required. |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #11,245 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Home Nonprogrammable Thermostats |
| Brand | Honeywell |
| Color | White |
| Connectivity Protocol | BACnet MS/TP |
| Connectivity Technology | Wi-Fi |
| Control Method | Remote |
| Control Type | Button Control |
| Controller Type | Push Button |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,420) |
| Date First Available | October 11, 2010 |
| Display Type | Digital |
| Finish | Matte |
| Finish Type | Matte |
| Global Trade Identification Number | 00085267133852 |
| Included Components | Thermos |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 7.3 ounces |
| Item model number | TH1100DV1000 |
| Manufacturer | Honeywell |
| Material | Plastic |
| Model Name | TH1100DV1000 |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. |
| Part Number | TH1100DV1000 |
| Pattern | Solid |
| Power Source | Battery Powered |
| Product Dimensions | 4"D x 5"W x 6"H |
| Screen Size | 1.5 Inches |
| Shape | Rectangular |
| Size | 1 Pack |
| Special Feature | Temperature Display |
| Special Features | Temperature Display |
| Specific Uses For Product | Electric Baseboard Heater |
| Specification Met | UL, BACnet MS/TP |
| Style | Modern |
| Temperature Control Type | Heating |
| UPC | 085267133852 |
| Voltage | 230 Volts |
| Warranty Description | No warranty. |

## Product Details

- **Brand:** Honeywell
- **Controller Type:** Push Button
- **Model Name:** TH1100DV1000
- **Product Dimensions:** 4"D x 5"W x 6"H
- **Special Feature:** Temperature Display

## Images

![TH1100DV1000 Pro-Digital 2-Wire Heat Only - Image 1](https://m.media-amazon.com/images/I/71UvGPJgT5L.jpg)

## Questions & Answers

**Q: Will this unit operate on a 12 volt RV electrical system without the aaa  batteries installed? Will the display be readable?**
A: No, I tried this. You need the batteries. They last about a year. I does control the 12 Volt RV furnace properly when the batteries are installed. The temperature control is greatly improved versus the standard RV thermostat.

**Q: Can this be used for Gas Fireplace?**
A: I use it for gas heating. You should be good to go for your gas fireplace.

**Q: I have several old circular Honeywell mercury thermostats which have two red wires only.  Can I replace with this thermostat?**
A: I have replaced about 25 1995-2000 model mercury t stats with this and the horizontal heat only model.  Works great

**Q: I have an electic wall heater and electric baseboard heater on the same line, would this thermostat work in this case?**
A: No, this thermostat is rated for 24 volt not 240 volt. This thermostat is not a line voltage thermostat. It would work on a gas furnace with 24 volt controls.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The best upgrade you can do for your trailer
*by M***U on January 15, 2026*

Works perfectly as a replacement for the manual two-wire factory thermostat. Easy to install. Only works for controlling your furnace not for combination ac/heater thermostats!! Very glad I did this replacement because the switch to turn the factory unit on/off was so tight it hurt my finger plus its spring was very iffy for setting the temperature. During the winter I keep the furnace turned on but the thermostat set at 35 degrees (which is its lowest setting) so it will kick on only when temps get close to freezing. Went thru a winter season winterized once so far and it used just a little propane from one of my tanks since our winters aren't very bad. YMMV.

### ⭐⭐⭐⭐⭐ An excellent choice for replacing older verticle shaped heat only analog thermostats
*by S***S on November 1, 2017*

This Honeywell TH1100DV1000 Pro Digital Heat only thermostat replaced a more than fifty year old General Controls brand model T-80 analog thermostat that wasn't reliably controlling an old natural gas "gravity" furnace. The old analog thermostat wasn't reliably turning the furnace on or off. It would often fail to turn off the furnace within a reasonable range of the set temperature. More often than not it would fail to turn the furnace on at all regardless of the set temperature. The natural gas furnace and the thermostat had been serviced and checked several times in the past by a HVAC technician who indicated that everything seemed to be working ok but for whatever reason my experience was that it was not reliably turning on. Before I removed the old analog thermostat I used a digital multi-meter to read the voltage and polarity of the heat only system and used red and white colored electrical tape to wrap and mark the two wires. I measured 450 millivolts DC and marked the positive side wire as red and the other wire as white. I removed the old vertical shaped metal cased thermostat and this new vertical digital thermostat back plate fit exactly over where the old thermostat had been so I did not have to paint, patch or cover any unsightly difference for the new thermostat wall plate. I was also able to re-use the older wall plate screws to mount the new wall plate. I did notice that the hole behind the thermostat wall plate was a few inches high and and inch wide. I had read that a large hole behind the wall plate can cause cold wall drafts that can negatively effect thermostat temperature readings. I used strips of thick extra sticky Gorilla (restricted trade mark) brand tape to cover that large opening and cut small holes for the two wires and wall plate screws. I connected the two wires to R for red and W for white (C was not used for my two wire millivolt system) onto the wall plate wire junction according to the simple instructions provided in the new thermostat booklet, placed the included AAA batteries into the new Honeywell thermostat (required for a millivolt heat only system) and I pushed it over the plastic wall plate. I left the new digital thermostat's advanced settings as default. I turned the simple switch to Heat On and set a temperature for testing. The final result is that this new Honeywell digital thermostat is working perfectly. The natural gas furnace turns on and off when it should. The furnace now cycles as needed to maintain the temperature within one degree of the set temperature. It doesn't overheat or under heat like the old analog thermostat used to do. I really like the minimalist non-programmable, single switch, heat only design. The only decision I had to make was what temperature to set on my new digital thermostat. In conclusion this is an excellent choice for anyone looking to replace newer or older two wire heat only analog thermostats. Notes: I purchased this thermostat from Filter Pro, Fulfilled by Amazon. Filter Pro was great.Their delivery was fast and on time. I ended up changing the cycle rate in the advanced settings mode (using the simple directions) from the default of "5" CPH to "4" CPH. The cycles per hour setting or CPH tries to adjust how many times the heating system is supposed to cycle on and off every hour. CPH is usually optimized for each type of heating system to improve the heating efficiency and energy usage. Even analog thermostats utilize a type of predictive CPH setting. For many basement gravity heating systems in larger homes the CPH recommendation can be as low as "1" or "2" because older gravity heat systems usually require a longer time for the entire system to heat up and for the heat to dissipate into the entire house. However it depends on the size of the home, size of the gravity heater system, how well the home is insulated, seasonal cold outdoor temperatures, etc.. For my smaller and poorly insulated one story home with a smaller gravity heat system a CPH of "3" or "4" seems to work best. You can refer to the included instruction booklet and test what setting works for your home (it's very easy to change it) or contact Honeywell or your local HVAC technician for recommendations on the CPH setting for your home and heating system.

### ⭐⭐⭐⭐⭐ Worth the money
*by B***. on December 10, 2025*

Easy to hook up and works flawlessly. Great buy if you need something just for heat.

## Frequently Bought Together

- Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only
- Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater,Black

---

## 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.vn/products/2336324-th1100dv1000-pro-digital-2-wire-heat-only](https://www.desertcart.vn/products/2336324-th1100dv1000-pro-digital-2-wire-heat-only)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-27*