Finding a dependable heat-only thermostat for an RV comes down to compatibility with your heating setup, ease of installation, and clear temperature control. This guide highlights five reliable options well-suited for RVs or tiny homes that rely on single-stage heat systems. The top picks cater to travelers, full-timers, and DIY installers who want straightforward operation without extra programming. The following section summarizes the five recommended products and their best-use scenarios.
| Product | Best For | Key Benefit |
|---|---|---|
| Suburban 161154 Wall Thermostat | Simple heat-only systems | Compact, straightforward dial |
| Honeywell TH1100DV1000 Pro-Digital 2-Wire | Easier digital control | Backlit display, clear readings |
| Camco RV Home Thermostat (White-Rodgers) | Rugged mechanical control | Mercury-free, adjustable anticipator |
| Emerson 1E78-140 (White-Rodgers) | Non-programmable simplicity | Backlit digital display |
| Lux Pro PSD010B Mechanical Non-Programmable | Budget-friendly, quick install | No fan, easy setup |
Suburban 161154 Wall Thermostat — Heat Only

The Suburban 161154 is a basic heat-only wall thermostat aimed at RVs using simple heating units. It is best for buyers seeking a no-frills, easy-to-install solution that concentrates on reliable heat control. Suitable for travelers or weekend campers who want a quick replacement for a non-digital unit.
- Best for: Simple heat-only RV systems with minimal controls
- Selected for: Straightforward operation and compact footprint
- Caution: Data shows limited feature details; verify compatibility with your specific heater model
Honeywell TH1100DV1000 Pro-Digital 2-Wire Heat Only

The Honeywell TH1100DV1000 is a digital, 2-wire, heat-only thermostat designed for single-stage heating. It suits RV owners who prefer a backlit display for visibility in dim environments and a digital readout of the ambient temperature. This model prioritizes readability and straightforward digital control over programmable complexity.
- Best for: RVs needing clear digital temperature readouts
- Selected for: Backlit display and simple 2-wire wiring
- Caution: Not a programmable thermostat—no scheduling features
Camco RV Home Thermostat — White-Rodgers

The Camco RV Home Thermostat offers a robust, mercury-free mechanical control with heat-only operation. It is well-suited for RVs that rely on dependable, simple mechanical thermostats rather than digital options. The rugged snap-action contacts and adjustable heat anticipator provide reliable performance in varying climates.
- Best for: Mechanical-only heating systems
- Selected for: Mercury-free design and rugged construction
- Caution: Mechanical models may lack advanced diagnostics or digital readouts
Emerson 1E78-140 Non-Programmable Heat Only

The Emerson 1E78-140 is a non-programmable thermostat designed for single-stage heating. It features an easy-to-read digital display with backlight, providing clear temperature readings. It is ideal for RVs that want a simple, dependable digital control without scheduling features.
- Best for: Single-stage, non-programmable RV heating
- Selected for: Backlit display and straightforward operation
- Caution: Lacks programmable scheduling; not suitable for multi-zone setups
Lux Pro PSD010B Mechanical Non-Programmable

The Lux Pro PSD010B is a mechanical, non-programmable, heat-only thermostat designed for quick installation. It is compatible with simple heating setups such as fireplaces or in-floor radiant heating where a basic, reliable control is preferred. It does not require a fan switch, which simplifies wiring in many RV configurations.
- Best for: Quick-install, non-programmable heat control
- Selected for: Simple wiring and low-cost option
- Caution: Mechanical control may lack digital readability in low-light situations
Buying Guide
Key considerations when choosing a heat-only RV thermostat include compatibility with your heating system, installation ease, and readability of the display. For mechanical units, confirm that the thermostat is designed for heat-only operations and that the anticipator adjustments match your heater type. For digital models, check display readability in your preferred lighting and whether the unit is truly non-programmable or offers basic presets.
What should I consider about compatibility?
Match the thermostat to your heating system’s voltage, single-stage operation, and the existence of a fan or digital controls. RV setups vary; some use simple 12V or 24V systems, while others rely on standard 120V wiring. Always verify the thermostat’s compatibility with your heater model before purchasing.
Which type is easier to install?
Mechanical, non-programmable thermostats typically require fewer connections and are easier for quick replacements. Digital thermostats may offer clearer displays but can involve more wiring steps. If you want a fast install with minimal fuss, choose a model marketed as “easy to install.”
Does display readability matter?
Yes. Backlit or digital displays help during nighttime adjustments in dim RV interiors. If you frequently adjust temperatures in low light, prioritize a backlit digital display. For bright environments, a simple dial may suffice.
What is the best option for travel or temporary use?
For temporary or travel-focused needs, mechanical thermostats or basic non-programmable digital models offer reliable cooling if needed and straightforward operation. They are typically more robust to bumpy roads and vibrations found in RV setups.
Are there limitations to consider?
Some models lack advanced features like scheduling or multi-zone control. Be sure to choose a unit that matches your expectations for control granularity. Also, verify that the thermostat’s temperature range aligns with your heater’s operational range.
How should I approach installation and safety?
Turn off power to the RV’s heating system before beginning. Follow provided wiring diagrams and safety instructions. If you are unsure about wiring, consult a professional to prevent wiring errors or electrical hazards.
FAQ
- Q: Do I need a programmable thermostat for RV heating? A: Not necessarily. For simple heat-only setups, non-programmable models provide reliable control.
- Q: Will a digital thermostat work with a 12V RV heater? A: Some digital models support 12V systems; check the product specifications to confirm voltage compatibility.
- Q: Is a mercury-free thermostat safer for RVs? A: Yes, mercury-free mechanical models are safer and easier to dispose of properly.
- Q: Can I replace a dial thermostat with a digital one in an RV? A: It’s usually possible if the mounting and wiring are compatible; verify with the product’s installation guide.
- Q: What is the advantage of a backlit display? A: A backlit display improves readability in low-light conditions, helpful for nighttime adjustments.
- Q: Should I choose a thermostat with a fan switch? A: If your heating system uses a fan, a thermostat with a fan control offers more flexible operation; otherwise, a heat-only model is sufficient.