Suburban 161154 RV Furnace Thermostat – 2-Wire Heat Only (12V)

Simple, Reliable Heat Control for Your RV Furnace

The Suburban 161154 thermostat is a single-stage, heat-only wall thermostat designed for RV furnaces that use a basic 2-wire system. This mechanical thermostat controls your furnace by opening and closing the circuit to turn heat on and off.

This unit features a mechanical readout with a clean white case, offering a simple, dependable solution for maintaining consistent interior temperatures.

If your RV uses a direct-wire thermostat setup, this is one of the most reliable and cost-effective replacement options available.

What Types of Furnaces Work with This Thermostat?

This thermostat is not tied to specific furnace models. Compatibility depends on how your furnace is wired.

Works With:

This thermostat is compatible with furnaces that use a basic 2-wire, heat-only control system.

These systems typically:

• Use only two thermostat wires
• Control heat only (no air conditioning)
• Connect directly from the thermostat to the furnace
• Operate on standard 12V DC RV systems

Common setups include:

• Standard RV propane furnaces
• Older or mid-range RV heating systems
• Standalone furnace systems without AC integration

Does NOT Work With:

This thermostat will not work with systems that require more advanced control:

• Thermostats that control both furnace and air conditioner
• Digital or programmable RV thermostats
• Multiplex or touchscreen control systems (Firefly, OneControl, etc.)
• Any system requiring 3 or more wires
• Systems where the thermostat connects to an AC control box instead of directly to the furnace

How to Tell If This Will Work for You

This thermostat is a good fit if:

• Your current thermostat has only 2 wires
• Your thermostat controls heat only
• Your furnace turns on with a simple on/off signal

You may need a different thermostat if:

• Your thermostat controls both heating and cooling
• You have a digital display thermostat
• Your system uses multiple wires or a control module

Features & Benefits

• Wall thermostat; single stage heat control
• Designed for RV furnace applications
• Mechanical readout for simple operation
• Clean white case for a standard RV interior look
• Simple 2-wire installation
• No programming required
• Reliable, long-lasting performance

Specifications

• Brand: Suburban
• Part Number: 161154
• Type: Wall thermostat
• Stage: Single stage
• Application: Heat control
• Display: Mechanical readout
• Color: White case
• Wiring: 2-wire system
• Voltage: 12V DC
• Temperature Range: 50°F to 90°F

When Do You Need This Thermostat?

Replace your thermostat if you notice:

• Furnace not turning on or off properly
• Inconsistent temperature control
• Old or worn thermostat contacts
• Delayed or unreliable furnace response

Pro Tip

If your furnace is not working, the thermostat may not be the only issue. Common failure points include the sail switch, limit switch, and control board. Checking these at the same time can help prevent additional repairs.

FAQ

Q: Will this work with my Suburban furnace?
A: It will work with any furnace that uses a basic 2-wire heat-only thermostat system. Compatibility depends on wiring, not model number.

Q: Can this control both my furnace and AC?
A: No. This is a heat-only thermostat and cannot control air conditioning systems.

Q: Is this a digital thermostat?
A: No. This is a mechanical thermostat designed for simple and reliable operation.