![]() ![]() This review will be the longest, since we’re going to use it to explain some of the review points. This variable-speed Ruud air conditioner is part of the new lineup. In the last few years, Ruud and Rheem have overhauled their products, and the improvement in quality and performance has been quite noticeable. Consumers Report, the prestigious review organization, ranked Ruud and identical sister-brand Rheem as among the least reliable air conditioners in a report done in about 2014. Ruud drifted as a brand for more than a decade. This unit ranking as the quietest central air conditioner was a surprise. Now, let’s look at the quietest ACs available. Brands that make them offer communicating technology as an option, and we’re not fans of it. Some manufacturers have started making variable-speed units in just the last 5-7 years, so their track record for reliability hasn’t been proven. If indoor climate control is the only consideration, a variable capacity air conditioner is easily the top choice.Ĭons: They are the most expensive, and if the compressor fails when not under warranty, are also the costliest to repair. You’ll never feel temperature fluctuations from cycle to cycle. They are also the most efficient and do the best job of removing humidity in summer, so your home is cool and comfortable. Pros: Variable-speed air conditioners are the quietest. ![]() Is one of these high-performance, super-quiet ACs right for you? Less than 15% of ACs sold are variable capacity models, but they’re growing slowly in popularity. ![]() The Quietest Variable Speed Central Air Conditioners Reviews There is a wealth of additional information that provides research for making a very good AC buying decision. Our comprehensive Central Air Conditioner Prices, Reviews and Buying Guide has a lot more information about these three compressor types (single-stage, two-stage and variable capacity) and how they impact performance. As you see from the list, compressor speed makes a difference of 10-15db. Variable compressors run as low as 25% (40% on some models), so obviously they are the quietest when running at lower capacities. Two-stage models run at 65% capacity much of the time, so they are quieter on low capacity than single-stage units. Single-stage compressors run at 100% capacity, so they are loud. ![]() The difference is in the amount of sound-dampening insulation in the XL16i. Another single-stage Trane air conditioner runs at 74db. For example, the Trane XL16i in the list has a noise level of 69 decibels. This is often called a “sound blanket,” and it can make a difference of 3-5 decibels. How much insulation there is around the compressor. There are two factors that determine central air conditioner decibel (db) level.ġ). 90 double-hung (4x as loud as 80dB) – Motorcycle at 25ft.Ĭentral Air Conditioner Noise Level Factors.80 dB (twice as loud as 70 dB) – Garbage disposal.70 dB (upper 70s are annoyingly loud) – Vacuum cleaner, many ACs at 5 ft.60 dB (1/2 as loud as 70 dB, fairly quiet) – AC unit at 100 ft.50 dB (1/4th as loud as 70 dB) – Normal conversation at home.Purdue University’s Chemistry Department released an interest list of sound comparisons using 70db as an arbitrary base: Why Sound Control MattersĪs decibels increase, sound grows from quiet to annoying to dangerous. We’re going to review each AC on the list shortly, but first a word about the three types of central AC and their noise levels. Heil QuietComfort 16 HSA6 Central Air Conditioner – 69 decibels.Lennox Signature Series SL18XC1 – 65 decibels. ![]()
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