EMERSON 80 Series 1F83C-11NP Thermostat | Montreal, Laval, Longueuil, South Shore & North Shore
For a single-stage furnace you set once and leave alone: no schedule, a high-contrast backlit screen, and a choice of batteries or a C wire.
Quick facts
A basement unit, a cottage, a workshop: when a single-stage furnace heats a space that does not run on a schedule, a thermostat you set once is enough. The 80 Series 1F83C-11NP (EMERSON’s White-Rodgers line) is non-programmable, with a high-contrast backlit screen you can read at a glance.
One stage, no schedule
- Stages: 1 heat and 1 cool, for heat only, cool only or both.
- Gas, oil or electric: on 24 V as well as millivolt.
- Two ways to power it: on batteries (mV to 30 VAC), or hardwired at 20 to 30 VAC on a C wire.
- Maximum load: 1.5 A per terminal, 2.5 A total.
- Setpoint: 7 to 37 °C (45 to 99 °F), set by hand.
- Terminals: RC, RH, C, W, Y, O/B and G.
What it can run
It suits conventional gas, oil or electric furnaces and a heat pump with no backup heat (1 heat stage, 1 cool stage). With a single heating stage, it cannot run dual fuel, which needs a backup stage. Hot water and steam systems are not named in this model’s sheet. Baseboards, convectors, radiant ceilings, fan-forced heaters, electric floor heating and wall or ducted heat pumps: no. In its 2025 cross-reference table, the brand lists the 1F83C-11NP to replace the 1F86-344 and 1F86-0244.
Against the 1F83C-11PR and the 1F75C-11NP
The EMERSON 80 Series 1F83C-11PR runs the same system and adds a 7-day or 5-1-1 schedule with 4 periods per day; its maximum load is lower, at 1.0 A per terminal and 1.5 A total. The EMERSON 70 Series 1F75C-11NP is also non-programmable for the same type of system, with the same maximum load; its sheet lists 2 AA batteries, a filter change reminder and continuous backlight as an option with a C wire.
Installation and start-up by AirGreen
The technician checks for a C wire in the wall; if there is none, the 1F83C-11NP runs on batteries. It is then wired according to whether your system does heat only, cool only or both. If the old thermostat left marks, the F61-2663 wall plate helps hide them. A free in-home estimate always comes before the installation.
Manufacturer document: 1F83C-11NP installation instructions (37-7479). Sold and installed by AirGreen. We serve Montréal, Laval, Longueuil, the North Shore and the South Shore.
Key facts: EMERSON 80 Series 1F83C-11NP
Four things to know, then its ID card in twelve answers. “—” means the manufacturer does not publish it.
Is the EMERSON 80 Series 1F83C-11NP compatible with your heating?
Two steps, thirty seconds. The verdict takes your system and your wiring into account.
Full compatibility table
The terminals behind the thermostat
Tap an element to see what it does. A working diagram, not a substitute for the manufacturer’s installation guide.
Try the EMERSON 80 Series 1F83C-11NP before you buy
Raise the setpoint, change the mode: see how it responds.
Winter, Rate Flex D and rebates: what this thermostat changes
With Hydro-Québec’s Rate Flex D, electricity costs less most of the winter and more during a few peak hours. Turning the setpoint down a few degrees during those hours is what counts.
The EMERSON 80 Series 1F83C-11NP or its closest sibling?
The most useful comparison: the model right next to it in our catalogue.
The right thermostat in three questions
If this model is not the right one for you, the page says so and shows you which one is.
Products that go with the EMERSON 80 Series 1F83C-11NP
Parts named in its spec sheet that we sell and install.
Installed and set up by our technicians, in five steps
What we do at your place, in order. The on-site estimate is free.
- 01InspectionEquipment, stages to control and existing wiring.
- 02C wireCommon wire added if the model needs it and it is missing.
- 03MountingWall base, terminal wiring, cover plate if needed.
- 04SettingsEquipment type, stages, dual energy and accessories.
- 05Start-upConnection, app, schedule and tests with you.
EMERSON 80 Series 1F83C-11NP specifications
From the manufacturer’s sheet. Type a word: the list filters as you write.
No line matches. Try another word.
Frequently asked questions about the EMERSON 80 Series 1F83C-11NP
Short answers, no detours.
What does the EMERSON 80 Series 1F83C-11NP work with?
According to the manufacturer’s sheet: conventional gas, oil or electric (millivolt and 24 V): heat only, cool only or both; heat pump with no backup heat.
Does it need a C wire?
Per the spec sheet, it can run on batteries; a common wire is still recommended when available.
Can it control electric baseboards?
No. It is a low-voltage (24 V) thermostat. 120/240 V baseboards need a line-voltage electronic thermostat.
Can it be controlled remotely?
Not directly: it has no built-in Wi-Fi.
What is the warranty?
5 years, per the manufacturer’s information.
Does AirGreen install it?
Yes. We sell and install this product in Montréal, Laval, Longueuil, the South Shore and the North Shore. The on-site estimate is free.
No question matches. Call us at 514 316-2973.
Your thermostat, installed and set up by our technicians
We check your system and wiring, install the thermostat, connect it and program it with you. One visit, one installed price.