what does single stage mean

It means that the thermostat can only control a unit, boiler or air conditioner, that has a corresponding single stage function. Check with the manufacturer of the unit you are trying to control to make sure you are ordering the correct type of thermostat. And make sure that you reconnect the new thermostat in the exact same way and to the exact same colors as the old thermostat was connected. And turn the power off on the unit you are controlling while doing the reinstallation of the thermostat or you could fry the circuit board.

does the white rodgers 200 5-1-1 stat have a backlight?

Yes by pressing any button preferably "Run" or " Hold" but the backlight is not as bright as shown in the picture. The color is somewhat like yellowish green and dimmer.

can this be used for heater only? we don't have air conditioning

Should work. I had to send it back because I needed one that was compatible with a 3 wire hydronic system.

Does this have a swing adjustment (determines the temperature difference from on to off)?

I can find nothing that states that it does. Looks to be a pre-set variance, and that variance is not indicated in the manual.

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White Rodgers P150 Single Stage Programmable Thermostat

Product ID: 41939311

Details

Brand
White-Rodgers
Color
4
Controller Type
Hand Control
Model Name
Emerson P150
Special Feature
Programmable

📅5-2 day programmable schedule

🔧Compatible with most single-stage HVAC

🌡️±1°F precision temp control

35531CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌡️ Stay cool, stay warm, stay ahead—comfort that fits your schedule.

SMART SCHEDULING - Customize weekday and weekend settings effortlessly with 5-2 day programmability—work-life balance meets home climate.
RELIABLE PEACE OF MIND - Backed by a 3-year warranty, ensuring long-term performance and confidence in your investment.
USER FRIENDLY INTERFACE - Backlit LCD and intuitive button controls make adjustments quick and hassle-free, even in low light.
WIDE HVAC COMPATIBILITY - Seamlessly integrates with most single-stage heating, cooling, and heat pump systems (sans aux) for versatile use.
PRECISION COMFORT CONTROL - Maintain your ideal temperature with ±1°F accuracy for ultimate home coziness.

The White Rodgers P150 is a sleek, programmable thermostat designed for single-stage HVAC systems, offering precise ±1°F temperature control and a convenient 5-2 day scheduling feature. Its backlit LCD and button controls provide easy usability, while compatibility with most heating, cooling, and heat pump systems ensures broad application. Protected by a 3-year warranty, it’s a reliable upgrade for modern smart home comfort.

Specifications

ASIN	B016KKDMPS
Additional Features	Programmable
Backlight	Yes
Best Sellers Rank	#273,326 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #322 in Home Programmable Thermostats
Brand Name	White-Rodgers
Color	4
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wired
Control Method	Touch
Control Type	Button Control
Controller Type	Hand Control
Customer Reviews	4.1 4.1 out of 5 stars (177)
Display Type	LCD
Global Trade Identification Number	00786710552533
Included Components	Emerson P150 Single Stage 5-2 Day Programmable Thermostat
Item Type Name	Emerson P150 Single Stage 5-2 Day Programmable Thermostat
Item Weight	8 ounces
Manufacturer	Copeland
Manufacturer Part Number	P150
Manufacturer Warranty Description	Warranty.
Material Type	Plastic
Model Name	Emerson P150 Single Stage 5-2 Day Programmable Thermostat
Model Number	P150
Mounting Type	Wall Mount
Number of Batteries	2 AAA batteries required.
Power Source	Electric
Product Style	5-2 Day - new model
Shape	Rectangular
Specific Uses For Product	Heat Pump
Temperature Control Type	Programmable
UPC	786710552533
Unit Count	1.0 Count

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TrustScore 4.5 | 7,300+ reviews

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