Will this unit operate on a 12 volt RV electrical system without the aaa batteries installed? Will the display be readable?

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.

Can this be used for Gas Fireplace?

I use it for gas heating. You should be good to go for your gas fireplace.

I have several old circular Honeywell mercury thermostats which have two red wires only. Can I replace with this thermostat?

I have replaced about 25 1995-2000 model mercury t stats with this and the horizontal heat only model. Works great

I have an electic wall heater and electric baseboard heater on the same line, would this thermostat work in this case?

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.

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Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only

Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only

Product ID: 2336324

Details

Brand
Honeywell
Controller Type
Push Button
Model Name
TH1100DV1000
Product Dimensions
4"D x 5"W x
Special Feature
Temperature

💡Backlit display for easy reading

🔋Battery powered for flexible install

🌡️Precise 40-90°F temp range

C$4663

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Description

🔥 Stay warm, stay smart — control your comfort with a tap! 🌡️

WIRELESS CONVENIENCE - Battery powered with Wi-Fi BACnet MS/TP connectivity for remote control and smart integration.
SMART COMPRESSOR PROTECTION - Built-in safeguards extend your heating system’s lifespan and reliability.
EFFORTLESS TEMPERATURE CONTROL - One-touch setpoint adjustment keeps your space perfectly cozy without hassle.
SLEEK WALL MOUNTED MINIMALISM - Compact 4x5 inch matte white design blends seamlessly into any modern workspace or home.
ALWAYS IN THE KNOW AMBIENT DISPLAY - Real-time ambient temperature shown constantly on a crisp backlit screen.

The Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only thermostat offers precise heating control with an adjustable 40-90°F range, a clear backlit digital display showing ambient temperature, and built-in compressor protection. Battery powered and Wi-Fi enabled, it’s designed for easy wall mounting and seamless integration into modern smart home or office HVAC systems.

Specifications

ASIN	B00H6ARNXO
Additional Features	Temperature Display
Best Sellers Rank	#19,068 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Home Nonprogrammable Thermostats
Brand Name	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 (3,521)
Display Type	Digital
Finish Types	Matte
Global Trade Identification Number	00085267133852
Item Dimensions D x W x H	4"D x 5"W x 6"H
Item Type Name	Nonprogrammable Heat Only Thermostat
Item Weight	207 g
Manufacturer	Honeywell
Manufacturer Part Number	TH1100DV1000
Material Type	Plastic
Model Name	TH1100DV1000
Model Number	TH1100DV1000
Mounting Type	Wall Mount
Number of Batteries	2 AAA batteries required.
Number of Items	1
Power Source	Battery Powered
Screen Size	1.5 inches
Shape	Rectangular
Specific Uses For Product	Electric Baseboard Heater
Specification Met	UL, BACnet MS/TP
Temperature Control Type	Heating
UPC	085267133852
Unit Count	1 Count
Voltage	230 volts

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C$4663

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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