Question 1

Does this come with the subbase that has the Off/Heat switch?

Accepted Answer

This Emerson White Rodgers 1E30N-910 Thermostat is VERY simple and comes with 3 components:
(1) A wall plate that you mount with 2 screws and to which you attach the 2 control wires,
(2) The thermostat base that actually holds the bimetal thermostat, and
(3) A cover with a bimetal thermometer displaying the current actual ambient temperature.
The thermostat base is mechanically and electrically connected to the wall mounting base with 2 machine screws, and has a lever protruding out the bottom of the unit that sets the desired temperature.  I do NOT believe this model features a System OFF switch, so simply moving the setpoint down to 50 degrees is as close as you can get.  I believe that the 1E50N-301 Thermostat includes the switching subbase with the Heat/Off function you desire.  I'm not a pro but I've installed this unit on more than one millivolt furnace and had no problems.  Unfortunately, none of these were in my own home so I can't go look at one of them for you.

Question 2

Have to replace a gas fireplace thermostat.  I was told there are specific wall mount thermostats for a fireplace. What type should I get?

Accepted Answer

Don't know what kinda fireplace you have, but this works great on mine. I just wired my 2 switch wires to the tstat and was good to go.

Question 3

We need to replace our old one that works with our gas free standing heat stove - will this one work? looks the same but model # is one # off.

Accepted Answer

This thermostat is very simple and is basically a single-pole on/off switch for heat-only applications.  It's identical to the old mercury-in-glass thermostats from the 1940's except it uses a mercury-free magnetic switch instead.  It has an adjustable "anticipator" (resistor)  for 24V systems but my furnace is a self-powered "millivolt" model so I set the anticipator to zero ohms and it works fine.

Question 4

I need a milvolt only thermostat for my gas log stove. Will this thermostat work?

Accepted Answer

Yes, This should work for you. It shows the compatibility with the Gas

ASIN	B001DYJZIA
Additional Features	Low Voltage
Best Sellers Rank	#182,451 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #213 in Home Programmable Thermostats
Brand Name	White-Rodgers
Color	White
Connectivity Protocol	BACnet MS/TP
Connectivity Technology	Wired
Control Method	Touch
Control Type	Dial Control
Controller Type	Hand Control
Customer Reviews	4.3 4.3 out of 5 stars (258)
Display Type	Manual
Finish Types	5.25
Global Trade Identification Number	00786710532696
Included Components	Install Guide, Thermostat
Item Dimensions D x W x H	30"D x 8"W x 6"H
Item Type Name	thermostat
Item Weight	4.48 ounces
Manufacturer	Copeland
Manufacturer Part Number	1E30N-910
Material Type	Plastic
Model Name	1E30N-910
Model Number	1E30N-910
Mounting Type	Wall Mount
Power Source	Electric
Product Style	Mechanical,Classic
Shape	Rectangular
Specific Uses For Product	Air Conditioner, Boiler, Furnace, Heat Pump
Specification Met	GAMA
Temperature Control Type	Manual
UPC	786710532696 786710532047
Unit Count	1 Count
Voltage	24 volts

White-Rodgers Low V Mechanical Thermostat, 1E30N-910

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