Choosing the right 240 volt baseboard heater involves matching room size, wattage, installation type, and control options. Below is a concise comparison table of the five selected products covered in this guide, followed by short, objective reviews and a practical buying guide to help you decide.
Product | Type | Key Feature | Voltage |
---|---|---|---|
Cadet F Series 96″ (8F2500W) | Hardwired Baseboard Heater | 2500W High Output, Safety Shutoff | 240/208V |
Cadet F Series 24″ (2F350W) | Compact Baseboard Heater | Small Footprint, Steel Construction | 240/208V |
Marley 2542NW 2′ | Convection Baseboard Heater | Convection Heating, Large Wiring Compartment | 240V |
KING 2K2405BW K Series 27″ | Hardwired Baseboard Heater | Aluminum Ribbon Fin, Safety Cutout | 240V |
Mysa Smart Thermostat (240V) | High-Voltage Smart Thermostat | Wi‑Fi, HomeKit/Alexa/Google, Energy Savings | 120–240V (supports 240V loads) |
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Cadet F Series 96″ Electric Baseboard Heater (8F2500W)

This Cadet model is a full-length 2500W (240/208V) baseboard heater intended for medium to large rooms. It lists a high output capacity designed to deliver substantial heat quickly and evenly via convection. The unit features universal wiring and pre-punched knockouts at 1-inch intervals for flexible installation on the wall or floor.
Safety is addressed with a high-temperature safety shutoff which interrupts power if overheating occurs. The steel construction and white finish are typical for wall-mounted baseboard units. This model suits spaces requiring sustained, high heat output and professional hardwiring.
Cadet F Series 24″ Electric Baseboard Heater (2F350W)

The Cadet 24″ model provides a compact 350W output and supports 240/208V operation, making it suitable for small rooms, bathrooms, or supplemental heating. Its steel construction and white finish help it integrate into typical interior decor while offering durable service life.
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Because of its lower wattage, this unit is intended for localized warmth rather than whole-room heating in large spaces. It is a practical option where space is limited or where zoning multiple small heaters is preferred for targeted temperature control.
Marley 2542NW 2′ Baseboard Heater

The Marley 2542NW is a convection-style 240V baseboard heater that emphasizes quiet, fanless operation. Convection heating circulates warm air without a blower, which can reduce airborne dust and provide more uniform temperature from floor to ceiling compared with forced-air devices.
Installation features include a large wiring compartment, dual knockouts, and a built-in cable clamp for streamlined hardwired connections. This model targets users seeking simple, low-maintenance convection performance for moderate-sized rooms.
KING 2K2405BW K Series Baseboard Heater 27″

The KING K Series 27″ model is a 500W, 240V hardwired baseboard heater featuring an aluminum ribbon fin heating element. The manufacturer highlights a full-length safety cutout for thermal protection and a non-plug design intended for permanent wiring.
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Aluminum ribbon fin elements are known for responsive heating and efficient heat transfer. This unit is appropriate for smaller rooms or as part of a zoned heating strategy where several compact heaters are distributed across living spaces.
Mysa Smart Thermostat For Electric Baseboard Heaters (240V)

The Mysa smart thermostat is designed specifically for high-voltage electric heating systems, including 240V baseboard heaters. It supports loads up to 3800W at 240V and requires at least four wires, including neutral or a second live wire, for proper installation.
Mysa adds Wi‑Fi control, compatibility with HomeKit, Alexa, and Google Home, and in-app schedules aimed at energy savings. The product notes compatibility limitations with two-wire or low-voltage systems, so confirming wiring type before purchase is critical. Features include adaptive display and remote temperature control via a free mobile app.
Buying Guide: How To Choose A 240V Baseboard Heater
Selecting the right 240 volt baseboard heater or control system depends on several practical factors. Below are the key considerations and comparison perspectives to help match product capabilities to your space and needs.
Room Size And Wattage
- Calculate Required Wattage: General guidance is about 10–12 watts per square foot for well-insulated spaces. Larger or poorly insulated rooms need more wattage.
- Select Heater Length: Longer heaters (e.g., 96″) provide higher wattage in one unit; shorter heaters are for smaller spaces or zoning.
- Multiple Units Vs Single Unit: Multiple smaller heaters allow zoning control; a single high‑output unit is often simpler for one large room.
Voltage Compatibility And Wiring
- Confirm 240V Supply: Verify that your circuit supplies the required 240V and appropriate amperage for the heater’s wattage.
- Hardwired Installation: Most 240V baseboard heaters are hardwired and require appropriate breaker size and cable gauge; professional installation is commonly recommended.
- Thermostat Wiring Needs: Smart thermostats (Mysa, meross) often require at least four wires (neutral or extra live). Older two-wire setups may not be compatible without rewiring.
Heat Delivery Method
- Convection (Fanless): Heats by natural air circulation; quieter and lower maintenance. Marley models emphasize convection benefits.
- Element And Fin Design: Aluminum ribbon fins and steel housings impact response time and durability. KING highlights ribbon fin design for efficient transfer.
- Safety Features: Look for high-temperature safety cutouts and thermal shutoffs to prevent overheating.
Controls And Energy Management
- Basic Manual Thermostats: Provide simple, reliable control; ensure they are rated for 240V and your heater’s wattage.
- Smart Thermostats: Offer scheduling, remote control, and integrations (HomeKit, Alexa, Google). Confirm they support high-voltage loads and required wiring.
- Energy Savings: Programmable schedules and zoning can reduce energy consumption; manufacturer claims vary, so consider real-world usage patterns.
Installation And Maintenance
- Professional Installation: For 240V systems, hiring a licensed electrician is often safer and ensures code compliance.
- Accessibility: Check wiring compartments and knockouts for ease of routing and securing cables (Marley and Cadet models note accessible wiring features).
- Maintenance: Convection units generally require less maintenance than forced systems; keep the area clear for proper airflow.
Safety And Code Considerations
- Breaker And Cable Sizing: Match breaker amperage and conductor size to the heater’s maximum current draw.
- Local Codes: Follow local electrical and building codes for fixed heating installations; permits may be required.
- Overheat Protection: Prefer units with built-in thermal cutouts or safety shutdown features for added protection.
Comparison Perspectives
- Output Vs Footprint: High-output long units (Cadet 96″) reduce the number of units needed, while short units (Cadet 24″, KING 27″) are better for targeted heating and easier placement.
- Control Flexibility: Smart thermostats (Mysa) add remote scheduling and integrations but require compatible wiring; manual thermostats are simpler to install in many older systems.
- Installation Complexity: Larger wattage units may require higher‑capacity breakers and thicker gauge wire; verify your electrical panel capacity before upgrades.
Use the considerations above to align heater size, wiring, safety features, and control options with your room layout and energy goals. For smart control, verify wiring compatibility and supported load ratings before choosing a smart thermostat for 240V baseboard heaters.
Tips for Getting the Best HVAC Prices
- Prioritize Quality Over Cost
The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money. - Check for Rebates
Always research current rebates and incentives — they can significantly reduce your overall cost. - Compare Multiple Quotes
Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors. - Negotiate Smartly
Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.