The Tempstar TVA9 and Comfortmaker CVA9 have variable-capacity compressors with 5 levels of operation. These are also called variable-speed compressors, since the compressor uses rotary technology and speeds up to deliver more air conditioning or slows down for less. Variable-speed models from most other brands have “infinite” levels of operation between 40% and 100% capacity. You’ll notice little difference in cooling consistency with a 5-speed vs. an infinite-speed model, and the cost of these units is slightly less.

Homeowners looking to purchase a ComfortMaker AC unit have a large selection to choose from. Though there are many factors to consider, purchasers should especially focus on an AC unit’s seasonal energy efficiency ratio (SEER) and/or energy efficiency ratio (EER), depending on the home climate. SEER ratings range from 8-21 and are specific to the cooling power, whereas EER ratings relate to the overall efficiency of the unit. In both cases, the higher numbers mean increased efficiency.

If you want to invest in a cooling unit that provides you control over the temperatures and humidity levels throughout your house, then the SoftSound Deluxe 19 Air Conditioner with SmartSense is a good option. Not only does it offer control, but it also has variable speed settings so that the user can choose their preference. And we don’t even need to mention the quiet performance is highly appreciated.

ComfortMaker can offer a wide variety of air conditioners that cater effectively to consumers at different price points. Although their premium SoftSound Deluxe units are their most efficient, the economy tier Performance Series models are perhaps some of their most impressive altogether. Paired with the brand's comprehensive sliding scale warranty coverage that includes No Hassle Replacement, it's hard to imagine that anyone could be disappointed with their purchase.

This is one of the brands from INTERNATIONAL COMFORT PRODUCTS which is a part of UNITED TECHNOLOGIES CORP. The PERFORMANCE 14 (N4A5) units are basic air conditioners with a durable powder coat finish but they use a wire coil guard to protect the condenser coil fins which does not actually do much to protect them. The units have a 14 SEER efficiency to meet all of the regional standards but their guarantee is not very good when compared to other brands. The SOFTSOUND DELUXE 19 (CCA9) is a premium unit with a variable speed fan motor, swept wing fan blade, and compressor blanket for quiet operation. They have a good guarantee but it is only average when compared to other brands. The units are sold in the USA and Canada but only through their approved dealer network. comfortmaker.com