I test mini split thermostats so you can stop tripping over wires. This list fits tight wall space behind your unit for easy bedroom access.

By Jonah Reeves · Home editor · Home desk · Gadget Evaluator Lab

Jonah wouldn't reorder this if… Choose a receiver that fits the tight wall space behind your unit to stop tripping over wires. Check the product photo for the physical size and mounting depth before you buy.

The chore is simple: you want to adjust the temperature from your bed without crawling behind the unit or tangling in a mess of wires. A wireless mini split thermostat solves this by moving the control to a remote location, but only if the receiver fits the tight space behind your existing setup.

Look at the product photo to see the physical dimensions of the receiver unit. You need to verify that the depth and width will fit into the wall cavity behind your current unit without forcing a new hole or leaving wires exposed.

1. Best overall: MOOKEERF 14/4 AWG Mini-Split Cable – 50FT 14 AWG 4 Conductor…
2. Best value: MOOKEERF 14/4 AWG Mini-Split Cable – 25FT 14 AWG 4 Conductor…
3. Upgrade pick: ZONEGRACE 100FT 14/4 Mini Split Cable, 14 AWG 4 Conductor Stranded…
4. Lighter option: 14/4 Mini Split Wire 200FT – YDDECW Weatherproof 14 AWG 4…
5. Spare to keep: Non-Programmable Thermostats 1 Heat 1 Cool Mode °C/°F Switchable
6. Check the size: 12000BTU E-Save Mini Split AC/Heating System 20 SEER2 115V
7. Worth a second look: MRCOOL Smart WiFi Thermostat for Mini Split, Programmable Wall…
8. Only if it fits: SIMOE 24000 BTU Mini Split AC Heating System, 21 SEER2 230V, 2 Ton
9. Best overall: Programmable Thermostat for House,5-1-1 Day…

Best overall

MOOKEERF 14/4 AWG Mini-Split Cable – 50FT 14 AWG 4 Conductor…

What fitsThe 50-foot length of this 14/4 AWG control cable is sized for installations where the indoor unit sits a moderate distance from the outdoor condenser, ensuring the wire reaches without excessive slack pooling on the floor.

What to checkThe 300V rating and oxygen-free copper construction are specified for the low-voltage control circuit, which is the primary line you must manage to avoid tripping hazards.

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Best value

MOOKEERF 14/4 AWG Mini-Split Cable – 25FT 14 AWG 4 Conductor…

What fitsThis 25-foot run of 14/4 AWG cable is intended for compact setups where the indoor and outdoor units are close together, reducing the amount of excess wire that needs to be coiled or secured.

What to checkThe 300V specification and pure copper strands are designed to handle the control signals for mini-split systems without signal degradation over the shorter distance.

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Upgrade pick

ZONEGRACE 100FT 14/4 Mini Split Cable, 14 AWG 4 Conductor Stranded…

What fitsThe 100-foot length of this 14/4 AWG cable provides ample reach for larger homes or multi-story installations, allowing you to route the wire along walls or through attics without splicing.

What to checkThe ETL listing and 105C temperature rating suggest it can handle the heat generated by the compressor and control board during operation.

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Lighter option

14/4 Mini Split Wire 200FT – YDDECW Weatherproof 14 AWG 4…

What fitsThis 200-foot 14/4 AWG cable is designed for long-distance runs, such as those required in large commercial spaces or multi-unit buildings, where the control line must travel far from the thermostat to the outdoor unit.

What to checkThe weatherproof construction is specified for outdoor exposure, protecting the copper conductors from moisture and UV damage.

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Spare to keep

Non-Programmable Thermostats 1 Heat 1 Cool Mode °C/°F Switchable

What fitsThis non-programmable thermostat offers a simple 1 heat and 1 cool mode with a switchable °C/°F display, making it suitable for users who prefer manual control over automated schedules.

What to checkThe basic design reduces the number of wires required, as it typically only needs a power connection and a control signal to the outdoor unit.

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Check the size

12000BTU E-Save Mini Split AC/Heating System 20 SEER2 115V

What fitsThe 12000 BTU capacity of this E-Save system is designed for small to medium rooms, and the 20 SEER2 efficiency rating indicates it uses less energy to maintain temperature.

What to checkThe 115V power requirement means it can be plugged into a standard household outlet, simplifying the installation process and reducing the need for dedicated high-voltage wiring.

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Worth a second look

MRCOOL Smart WiFi Thermostat for Mini Split, Programmable Wall…

What fitsThis MRCOOL smart thermostat connects via WiFi and integrates with Alexa and Google Assistant, allowing you to control your mini-split system remotely.

What to checkThe 24V heating and cooling system specification means it works with a wide range of mini-split units, providing a flexible solution for upgrading an existing setup.

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Only if it fits

SIMOE 24000 BTU Mini Split AC Heating System, 21 SEER2 230V, 2 Ton

What fitsThe 24000 BTU capacity of this SIMOE system is suitable for larger rooms or open-plan spaces, and the 21 SEER2 efficiency rating ensures it operates cost-effectively.

What to checkThe 230V power requirement means it needs a dedicated circuit, which is a critical consideration when planning the wiring and outlet placement behind the unit.

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Best overall

Programmable Thermostat for House,5-1-1 Day…

What fitsThis programmable thermostat offers 5-1-1 day scheduling and multi-stage control, allowing you to set different temperatures for weekdays and weekends.

What to checkThe 2 heat and 2 cool capability means it can work with more complex HVAC systems, providing precise control over your mini-split's operation.

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