8 Best RV Heat Only Thermostats (November 2026)

The best RV heat only thermostats include the LUX PSD010B Non-Programmable 2-Wire Heat-Only Thermostat for a simple 2-wire setup, the Suburban 161154 Wall Thermostat for a Suburban RV replacement, and the White-Rodgers Emerson M30 White Heat-Only Thermostat for a confirmed 24V circuit.

On this page (6 sections)

1. How we chose an RV heat only thermostat
2. Best RV heat only thermostats by use
3. What should you check before replacing an RV furnace thermostat?
4. Is a digital thermostat better for an RV furnace?
5. When should you use a different thermostat type?
6. Which RV heat only thermostat should you choose?

The best RV heat only thermostat is one that matches your furnace’s voltage, wiring and heat call. Suburban’s 161154 is the RV-specific heat-only pick here; the LUX PSD010B is a 2-wire option when its requirements fit your system.

A replacement thermostat can look simple and still be wrong for an RV. Some controls are made for home heating, some handle line-voltage electric heat, and some RV models combine furnace, cooling and fan functions.

This roundup compares 8 options by their stated heating mode, voltage and wiring details. We did not verify compatibility with every RV furnace, so use your furnace manual and existing thermostat labels as the final check.

Our picks at a glance

1. 1
   Best for a simple 2-wire setup

   LUX PSD010B Non-Programmable 2-Wire Heat-Only Thermostat

   9.7/10 our score

   See it on Amazon
2. 2
   Best for a Suburban RV replacement

   Suburban 161154 Wall Thermostat

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a confirmed 24V circuit

   White-Rodgers Emerson M30 White Heat-Only Thermostat

   9.5/10 our score

   See it on Amazon

4. 4

   Honeywell Home Digital Non-Programmable Thermostat for Electric

   Best for line-voltage electric heat
   Check it
5. 5

   LUX PSD010BF Non-Programmable Vertical Heat-Only with Fan

   Best for heat with fan control
   Check it
6. 6

   Honeywell Home CT87K1004 The Round Heat Only

   Best for familiar dial control
   Check it
7. 7

   White-Rodgers Snap Action Thermostat

   Best only for cooling systems
   Check it
8. 8

   That one XZHJJF RV Thermostat

   Best for a matching Dometic setup
   Check it

How we chose an RV heat only thermostat

The most useful RV furnace thermostat is the one whose electrical and control requirements match the installed system. We compared the listed system type, voltage, wire count, power source and functions, then scored each option for the searcher’s heat-only use.

Our score weighs specs, features and buyer feedback against what you’re shopping for. A high score does not override a mismatch in voltage, wiring or furnace type.

For a broader look at heating controls, see What Is a Furnace Thermostat? A Simple Guide.

If your RV has a heat pump instead of a furnace, What Is a Heat Pump Thermostat? The Complete Guide explains why those controls differ.

Best RV heat only thermostats by use

The Suburban and LUX options are the most relevant starting points for a heat-only RV replacement, while several other picks are useful only when their specific system requirements match. Read each limitation before treating a home thermostat as an RV furnace control.

1

LUX PSD010B Non-Programmable 2-Wire Heat-Only Thermostat: Best for a simple 2-wire setup

9.7/10Our score

• 2-wire heat-only
• Battery powered
• Large illuminated display

A battery-powered 2-wire heat-only option with an illuminated display. Confirm that its wiring and system type match your RV furnace before choosing it.

See it on Amazon

Pros

• Heat-only design
• Battery powered
• Large illuminated display

Cons

• Compatibility with a specific RV furnace needs confirmation

The LUX PSD010B is a 2-wire, battery-powered heat-only thermostat with a large illuminated display. If you want scheduled settings, compare programmable two-wire heat-only thermostats, and confirm RV compatibility.

That makes it a simple candidate when your current setup uses two thermostat wires and the furnace is designed for this style of control.

LUX describes it for heat-only systems such as fireplaces, stoves and in-floor radiant heating. That description does not confirm fit with every RV furnace, so match the terminal labels and wiring diagram before replacing an existing control.

The thermostat uses 2 AA batteries and does not require a fan switch. Its push-button controls and illuminated screen may suit an RV owner who wants a readable setting without adding fan control.

Choose it only after confirming that your furnace expects the same two-wire heat call. For a broader overview of 3 wire RV thermostat setups, compare the wire functions rather than relying on wire count alone.

2

Suburban 161154 Wall Thermostat: Best for a Suburban RV replacement

9.6/10Our score

• Suburban wall thermostat
• Heat only
• Wall mount

This Suburban wall thermostat is identified as heat-only and is the clearest RV-specific choice in this group. Check your furnace’s wiring and replacement requirements before installing.

See it on Amazon

Pros

• RV-focused heat-only option
• Wall mount

Cons

• Exact furnace compatibility needs confirmation

The Suburban 161154 is the most directly RV-oriented heat-only option in this group. It is a wall thermostat from Suburban and is identified as a heat-only model.

That makes it a sensible first model to compare when replacing a Suburban control. Still, the product name alone does not identify every compatible furnace model, so check your appliance manual and the existing thermostat’s wiring.

The available information does not give a voltage or wire count for this thermostat. That gap matters because two thermostats can share a heat-only label yet use different electrical controls.

Choose this option when your current setup calls for this Suburban replacement and its requirements match. If you are choosing a different RV control style, our guide to the best RV digital thermostat covers display-focused alternatives.

3

White-Rodgers Emerson M30 White Heat-Only Thermostat: Best for a confirmed 24V circuit

9.5/10Our score

• 24V
• Mechanical snap action
• Heat only

Its stated 24V, mechanical, heat-only design may suit an RV setup only when the furnace circuit matches those requirements. Verify voltage and wiring first.

See it on Amazon

Pros

• Stated 24V operation
• Mechanical snap action
• Heat-only control

Cons

• RV furnace compatibility is not established

The White-Rodgers Emerson M30 is a 24V mechanical snap-action thermostat for heat-only systems. Its stated voltage is the key compatibility check for an RV furnace replacement.

A 24V label is not a universal RV match. Confirm that your furnace circuit is 24V and that the thermostat’s terminals align with the existing wiring before considering it.

The mechanical control and wall plate keep the design straightforward. If your RV uses a different voltage or a specialized control board, choose a thermostat specified for that arrangement instead.

This is a conditional pick for an RV owner whose manual confirms a compatible 24V heat-only circuit. It should not be selected based only on the words “heat only.”

4

Honeywell Home Digital Non-Programmable Thermostat for Electric: Best for line-voltage electric heat

9.4/10Our score

• For 120V or 240V line-voltage electric heat
• 2-wire non-polarized connection
• Digital display

This thermostat is designed for line-voltage electric baseboards and convectors, not a typical RV furnace control. Consider it only if your heating system and wiring match those requirements.

See it on Amazon

Pros

• Digital display
• 2-wire connection
• Silent TRIAC switching

Cons

• Not intended for a low-voltage furnace circuit
• Cannot be used with fan-forced convectors

The Honeywell Home digital thermostat is designed for 120V or 240V line-voltage electric heat, including baseboards and convectors. Those requirements differ from many RV furnace control circuits.

Its 2-wire non-polarized connection and digital display are useful in the electric heating systems it supports. Honeywell Home also specifies silent TRIAC switching, with a maximum load of 2,000W at 240V and a minimum load of 200W at 240V.

Do not use it as a substitute for a low-voltage furnace thermostat without explicit confirmation from the furnace maker. It also cannot be used with a fan-forced convector.

For a home line-voltage application, compare it with the best 240 volt baseboard heater thermostat. For an RV furnace, only consider it if your system is actually line-voltage electric heat and meets the stated load range.

5

LUX PSD010BF Non-Programmable Vertical Heat-Only with Fan: Best for heat with fan control

9.3/10Our score

• Heat-only
• Fan switch
• Battery powered

The fan switch sets this apart from a basic heat-only control. Check that your RV furnace wiring supports the thermostat’s fan function before selecting it.

See it on Amazon

Pros

• Fan switch
• Battery powered
• Large illuminated display

Cons

• RV furnace compatibility needs confirmation

The LUX PSD010BF adds a fan switch to a battery-powered heat-only thermostat. It can suit a setup where the thermostat needs to control heat and a compatible blower fan.

The model uses 2 AA batteries and has a large illuminated digital display. Those traits make its controls easy to read, but they do not mean its wiring matches an RV furnace.

Check whether your furnace’s thermostat terminals support separate fan control and whether the wiring diagram matches the PSD010BF. A fan switch is a mismatch if your system expects a simple heat call only.

Choose it when the fan function is required and the furnace control circuit supports it. Otherwise, a heat-only model without fan switching may be a closer fit.

6

Honeywell Home CT87K1004 The Round Heat Only: Best for familiar dial control

8.9/10Our score

• Manual heat-only control
• Round dial
• Mercury free

The manual dial keeps temperature changes simple, but the available details do not guarantee compatibility with an RV furnace. Match its wiring and circuit requirements before buying.

See it on Amazon

Pros

• Manual dial control
• Heat-only model
• Mercury free

Cons

• RV compatibility needs confirmation

The Honeywell Home CT87K1004 uses a manual round dial for heat-only control. Its simple twist setting may suit buyers who want a familiar manual interface.

The product details state temperature control within ±1°F and identify the model as mercury free. They do not guarantee a specific RV furnace voltage or wire configuration, so check the manual and terminals before using it in a camper.

A home thermostat’s heat-only label is not enough to confirm RV compatibility. If your RV uses a three-wire control, compare the function of each wire with the thermostat’s supported terminals; our 3 wire RV thermostat guide walks through that check.

This is a conditional choice for a matching circuit, not a default RV replacement. Confirm the system requirements before ordering.

7

White-Rodgers Snap Action Thermostat: Best only for cooling systems

8.7/10Our score

• Single-stage cooling only
• Mechanical snap action
• Mercury free

This is a cool-only thermostat, so it is not a fit for controlling an RV furnace. It is included as a reminder to verify the operating mode before buying.

See it on Amazon

Pros

• Clearly identified cooling-only use
• Mechanical contacts
• Mercury free

Cons

• Does not control heat

The White-Rodgers Snap Action Thermostat is cool-only, so it is not a choice for an RV furnace. Its stated use is single-stage cooling, despite “heat” appearing in some of its other feature descriptions.

That conflict makes careful model identification important. The title and product description identify it as a cool-only thermostat, and its description says it works with single-stage cooling systems.

A heat-only replacement should be designed to control heat, not just have a mechanical or snap-action design. We include this option to make the mode distinction clear: do not use this model for furnace control.

If your RV has a heat pump or separate heating and cooling equipment, identify the system before buying. A best thermostat for dual fuel heat pump may help explain how combined systems need different controls.

8

That one XZHJJF RV Thermostat: Best for a matching Dometic setup

8.6/10Our score

• 12V DC
• Cool, furnace, fan and off controls
• Replacement for Dometic 3106995.032

This RV thermostat offers a furnace mode alongside cooling and fan controls, so it is not heat-only. Consider it only as a replacement where the 12V wiring, analog control board and compatible Dometic model match.

See it on Amazon

Pros

• RV-specific functions
• 12V DC
• Dometic replacement compatibility stated

Cons

• Not heat-only
• Requires an analog control board

The That one XZHJJF thermostat is an RV replacement with furnace, cooling, fan and off modes, rather than a heat-only control. It is described as a 12V DC thermostat for compatible Dometic systems.

The stated replacement reference is Dometic 3106995.032, and the thermostat requires an analog control board. Its directions also say to use the same wiring, so compare the existing connector and wire functions before choosing it.

This model may be relevant when you need a multi-mode RV thermostat and the board, voltage and model match. It is not the right choice if your goal is a dedicated heat-only wall control.

For help with a heat-only option from a familiar home thermostat brand, see our best 3 wire thermostat Honeywell guide, then confirm RV suitability separately.

What should you check before replacing an RV furnace thermostat?

Check the furnace manual, thermostat model, wire labels and circuit voltage before buying a replacement. These details determine whether the control can safely send the right heat call.

Start by photographing the existing terminals and noting which wire connects to each label. Do not assume colors indicate function, since wiring conventions can vary across RV systems.

Next, confirm whether the thermostat controls heat only or also fan and cooling. A replacement with extra modes can still be incompatible if the furnace board expects a simpler control.

If the wiring or voltage is unclear, ask an RV service technician to identify the circuit. A wrong connection can damage controls or prevent the furnace from operating.

Is a digital thermostat better for an RV furnace?

A digital thermostat can make the selected temperature easier to read, but it is only better when its electrical requirements match the furnace. The display style does not determine wiring compatibility.

The LUX PSD010B and PSD010BF both have illuminated displays and use batteries. The PSD010BF adds a fan switch, so choose based on whether that extra function matches your furnace wiring.

A manual thermostat can be a reasonable choice when you want direct dial control and your system is compatible. Explore the smart thermostat for RV guide only after confirming your RV control board supports a smart model.

When should you use a different thermostat type?

Use a different thermostat type when your RV has a heat pump, line-voltage electric heat or combined heating and cooling controls. Those systems can need different terminals and switching than a heat-only furnace.

For example, the Honeywell RLV3120 is for line-voltage electric baseboards and convectors, while the That one XZHJJF model offers multiple RV modes and needs an analog control board. Neither description makes it a universal furnace replacement.

If you are comparing a heat pump setup, read What Is a Heat Pump Thermostat? The Complete Guide before choosing.

A system with more than one heat source may also need a dedicated dual-fuel control.

Which RV heat only thermostat should you choose?

Choose the Suburban 161154 when your existing Suburban system and wiring call for that heat-only wall thermostat. Choose the LUX PSD010B when your furnace is confirmed to use a compatible 2-wire heat-only control, and consider the M30 only for a confirmed 24V circuit.

Avoid the Honeywell line-voltage model for a typical RV furnace, and skip the White-Rodgers cool-only thermostat for heating. If you cannot confirm voltage and wire functions, use the furnace manual or get a technician to identify the correct replacement.

Our top 3 picks at a glance

1. 1
   Best for a simple 2-wire setup

   LUX PSD010B Non-Programmable 2-Wire Heat-Only Thermostat

   9.7/10 our score

   See it on Amazon
2. 2
   Best for a Suburban RV replacement

   Suburban 161154 Wall Thermostat

   9.6/10 our score

   See it on Amazon
3. 3
   Best for a confirmed 24V circuit

   White-Rodgers Emerson M30 White Heat-Only Thermostat

   9.5/10 our score

   See it on Amazon

Frequently asked questions

How do I choose an RV heat-only thermostat?

Choose by matching the thermostat’s voltage, wire count, heating mode and control functions to your furnace. Check the existing thermostat model and furnace manual before ordering.

A thermostat described as heat-only can still be incompatible if its circuit voltage or wiring differs.

Can I use a home thermostat for an RV furnace?

Sometimes, but the label alone does not prove compatibility. Compare the home thermostat’s voltage and wiring needs with the RV furnace circuit, and confirm whether it expects a fan connection.

Ask an RV service technician if the furnace manual does not identify a compatible replacement.

Does a 2-wire RV thermostat need batteries?

It depends on the model. The LUX PSD010B is battery powered and uses 2 AA batteries, but other 2-wire thermostats may use a different power arrangement.

Check the thermostat instructions and furnace wiring before assuming the two wires provide power.

What is the difference between heat-only and furnace mode?

A heat-only thermostat is designed to call for heat without offering cooling controls. An RV thermostat with a furnace mode may also control cooling, fan operation or other functions, so its wiring can differ.

Match the replacement’s functions to the existing control system.

Can I replace an RV thermostat without changing the wiring?

Only if the replacement is designed for the same system and its wiring functions match. Compare wire labels, furnace instructions and thermostat requirements before reusing existing wires.

Turn off power before handling wiring, and get qualified help if you cannot identify the circuit safely.