The Toshiba RAC-WK0612CRRU is a window A/C designed for cooling small rooms, with an advertised coverage of 250 ft² (23 m²) and an advertised capacity of 6,000 BTU/h. Compared to the similarly designed Toshiba RAC-WK0512CMRU, it comes with a remote control and an additional dehumidification-only setting.
Our Verdict
The Toshiba RAC-WK0612CRRU can be used in large rooms, though, like most low-capacity window ACs, this isn't what it's designed for. It has sufficient cooling capacity to operate in apartment living rooms or larger offices, but it'll struggle to cool bigger open-concept spaces in a timely fashion. On the upside, its power draw is quite low, and it won't have too big an impact on your energy bill if you run it often in hotter weather.
Low power consumption.
Insufficient capacity to cool larger spaces in a time-efficient manner.
The Toshiba RAC-WK0612CRRU is a satisfactory option for use in bedrooms and small rooms. Its fan noise can be a little annoying, especially relative to other models at its lowest setting, though it's still unlikely to wake you in the middle of the night. It's a compact, relatively lightweight option that can be set up or stored in a closet without too much difficulty. It does a great job of maintaining your desired temperature, but its compressor cycling can result in small and slightly distracting changes in the perceived humidity of a room.
Compact, relatively lightweight design.
Low power consumption.
Does a good job of minimizing swings in temperature during maintenance phase.
Will effectively cool smaller spaces.
Compressor cycling results in slightly noticeable shifts in humidity while maintaining setpoint.
Louder-than-average fan noise.
The Toshiba RAC-WK0612CRRU has good overall efficiency. It'll need to run for quite a while to cool moderately sized spaces, but its power draw is impressively low overall.
Low power consumption.
The Toshiba RAC-WK0612CRRU isn't likely to be oversized for many areas due to its limited overall capacity. You won't experience any fluctuations around the desired setpoint temperature, but its compressor cycling is a little on the slower side compared to some alternatives, which can result in small but slightly distracting changes in the perceived ambient humidity in the room it's cooling.
Does a good job of minimizing swings in temperature during maintenance phase.
Compressor cycling results in slightly noticeable shifts in humidity while maintaining setpoint.
The Toshiba RAC-WK0612CRRU is a decently quiet unit overall. Its fan noise is rather loud, so it isn't as quiet in its lower settings as you would expect. That said, there isn't much of an increase in noise while running it in its higher settings, and you can drown it out by slightly turning up the volume on your TV if it's set up nearby.
Louder-than-average fan noise.
Performance Usages
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Differences Between Sizes And Variants
Toshiba offers two A/C units with the same RAC-WK0612CRRU model name. They share the same overall specifications, and as a result, we expect them to perform similarly. The major differences between them lie in their controls. The older model we tested has its control panel on the left side of the unit, while the newer one has a more centrally positioned interface. They also have slightly different remotes; the old model has a remote control with a small display, whereas the newer model's remote lacks said display.
For those interested, here's the product label for the model we tested.
Let us know in the comments if you come across another variant of this air conditioner.
Popular Air Conditioner Comparisons
The Toshiba RAC-WK0612CRRU is a window A/C designed for small spaces like dorms or smaller apartment living rooms. It competes with models like the GE AHEF06BC and Frigidaire FHWC054TE1 near the entry-level point in the market, with a compact design livened up by added niceties like an included remote control and a digital thermostat. That said, it doesn't offer a massive advantage in performance or real-world cooling capacity versus the cheaper Toshiba RAC-WK0512CMRU.
The Frigidaire FHWC054TE1 and Toshiba RAC-WK0612CRRU perform very similarly overall, and you should really just go for whichever model can be found at a cheaper price. That said, the Frigidaire does pull marginally ahead in a few ways. Its fan is a little quieter, and it does a marginally better job of maintaining a stable temperature and humidity level while operational.
The Toshiba RAC-WK0612CRRU and Toshiba RAC-WK0512CMRU are both window-mounted ACs with slightly different capacities. The WK0612CRRU is the fractionally larger, pricier option with an advertised capacity of 6,000 BTU/hr versus the WK0512CMRU's 5,000 BTU/hr. This gap in capacity isn't really sufficient enough to run the risk of cooling an equivalently-sized room too quickly and causing a buildup in humidity. The WK0612CRRU 's somewhat greater capacity also means it won't necessarily have to work quite as hard in spaces where it'd be undersized, leading to slightly less wear and tear over time. Beyond that, the WK0612CRRU, unlike the WK0512CMRU, has a digital thermometer that allows you to check the desired temperature and comes with a remote control to operate the unit from a distance.
Test Results
It's worth noting that this unit's height with the window bracket installed is 34 cm (13.4 inches). The shorter height measurement provided is to account for storing the unit or for wall installations.
The Toshiba RAC-WK0612CRRU's cooling capacity is alright. It'll do just fine in smaller living rooms or spaces like offices and bedrooms, but it's undersized for cooling open-concept living spaces or whole apartments.
Like many other low-capacity window units, this one is impressively efficient due to its low power draw, even if it might take quite a while to cool a room.
This unit has a non-inverter compressor that needs to cycle on and off to maintain the setpoint. Thanks to its low power draw, it remains decently efficient during this maintenance phase.
This unit does a sub-par job of keeping humidity levels stable while maintaining a setpoint. Its compressor cycles at a slightly slower rate than the lower-capacity Toshiba RAC-WK0512CMRU, giving a bit more time for condensed moisture to reevaporate into the room. As a result, your room can sometimes feel a little cold and clammy while it's running.
It's worth noting that this unit's compressor can briefly cycle up to a max volume of 61 dBA, but these bursts are very short and aren't that much of a nuisance.
