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 Nonprogrammable Heat Only Thermostat, White, 1 Pack

Product ID: 315781710

Details

Brand
Honeywell
Controller type
Push Button
Model name
TH1100DV1000
Product dimensions
10.2D x 12.7W
Special features
Adjustable

💡Backlit LCD for easy reading

🔋Battery powered, no wiring hassle

🌡️Adjustable temp scale 40-90°F

COP 281448

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Description

🔥 Simplify your heat game with Honeywell’s sleek, smart thermostat!

ALWAYS VISIBLE DISPLAY - Backlit LCD ensures you can check ambient and set temperatures anytime, even in low light.
PRECISION HEAT CONTROL - Maintain your perfect comfort zone with a digital scale adjustable from 40 to 90°F.
EFFORTLESS INSTALLATION - Battery-powered design means no complex wiring—just pop in 2 AAA batteries and go.
MINIMALIST NO FUSS DESIGN - Nonprogrammable simplicity for professionals who want straightforward, dependable heat control.
RELIABLE FURNACE PROTECTION - Built-in compressor protection safeguards your heating system for long-term peace of mind.

The Honeywell TH1100DV1000 is a nonprogrammable, heat-only thermostat featuring an adjustable temperature scale from 40 to 90°F, a clear backlit LCD display, and battery-powered operation for easy installation. Designed for reliable heating control, it includes built-in compressor protection and displays ambient temperature at all times, making it an ideal upgrade for replacing older analog heat-only thermostats.

Specifications

ASIN	B00H6ARNXO
Additional Features	Adjustable
Backlight	Yes
Best Sellers Rank	#107,408 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #322 in Home Thermostats & Accessories
Brand	Honeywell
Brand Name	Honeywell
Color	White
Colour	White
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wi-Fi
Control Method	Touch
Control Type	Button Control
Controller Type	Push Button
Controller type	Push Button
Customer Reviews	4.6 out of 5 stars 3,377 Reviews
Display Type	LCD
Global Trade Identification Number	00085267133852
Included Components	thermostat
Item Dimensions D x W x H	10.2D x 12.7W x 15.2H centimeters
Item Type Name	Nonprogrammable Heat Only Thermostat
Item Weight	207 Grams
Manufacturer	Honeywell
Manufacturer Part Number	TH1100DV1000
Material Type	Plastic
Model Name	TH1100DV1000
Model Number	TH1100DV1000
Model name	TH1100DV1000
Mounting Type	Wall Mount
Number of Batteries	2 AAA batteries required.
Power Source	Battery Powered
Product Style	Traditional
Product dimensions	10.2D x 12.7W x 15.2H centimeters
Screen Size	1.5 Inches
Shape	Rectangular
Special features	Adjustable
Specific Uses For Product	Garage
Temperature Control Type	Digital
UPC	085267133852
Unit Count	1 Count
Voltage	230 Volts

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COP 281448

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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