The Best of Ductless Mini-Splits

Choosing the best mini-split system involves considering several factors to ensure that it meets your cooling and heating needs efficiently and effectively. By carefully evaluating these factors, you can select the best mini-split system that aligns with your needs, preferences, and the unique requirements of your space. 

Factors in Choosing the Best Mini-Split


Selecting the proper BTU size is crucial for comfort and efficiency. It indicates cooling/heating capacity and depends on factors like room size, insulation, and climate. Here's the guide:

  1. Calculate Room Size: Measure the length and width of the room in feet. Multiply these dimensions to calculate the square footage of the room.
  2. Determine Climate Zone: Consider your location and the local climate. Areas with hotter climates may require higher cooling capacity, while colder climates need more heating capacity. 


Cost-savings benefits include the following: 

  • Buying Direct: Buying from HVACDirect can save you an average between three to six thousand dollars because we sell products at wholesale pricing. THere are no mark ups and no hidden fees. 
  • Labor Cost ONLY for Installation: When you buy direct from us, you will bypass having to pay someone else's prices for the hardware itself and only pay for the installation of the system. That can save you up to thousands of dollars alone. 
  • Energy Efficient: Ductless mini-split systems are very energy efficient and that will cut down on utility costs. 
  • Rebates: You can save up to two thousand dollars by utilizing rebates on qualifying ductless mini-split systems. 

Energy Efficiency

SEER, EER, and HSPF are important ratings used to measure the efficiency of mini-split and other air conditioning and heating systems. Understanding these ratings can help you choose a system that is energy-efficient and suits your needs. 

1. SEER (Seasonal Energy Efficiency Ratio):

  • SEER measures AC cooling efficiency during a standard reason.
  • It ratios cooling output (BTUs) to energy input (watts). 
  • Higher SEER = better efficiency. Mini-splits rate 16 to 30+.
  • Higher SEER = lower bills, eco-friendliness. 

2. EER (Energy Efficiency Ratio):

  • EER rates efficiency at 95°F outdoor, 80°F indoor.
  • Measures BTUs to watts at those conditions.
  • High EER = superior cooling in high temps.

3. HSPF (Heating Seasonal Performance Factor):

  • HSPF measures heat pump efficiency.
  • Calculates BTUs to watts during heating season.
  • Vital in colder climates for efficient heating. 
  • Higher HSPF = better heating efficiency (8 to 12+ for mini-splits). 


A single-zone mini-split system cools and heats a specific area using one indoor unit (air handler) connected to one outdoor unit (condenser).

A multi-zone mini-split system cools and heats multiple areas in a building with a single outdoor unit. Unlike single-zone systems, it independently adjusts temperatures for different rooms with an air handler in each room.


Having a long warranty on a ductless mini-split is crucial to ensure prolonged protection against potential repairs and replacement costs, providing peace of mind and cost savings over the system's lifespan. 

  1. Product Reliability: A lengthy warranty suggests manufacturer confidence in product quality and reliability, assuring fewer major issues within the covered period.
  2. Cost Savings: Long warranties save money by covering costly repairs or replacements of products, especially intricate ones like HVAC systems, during the warranty period. 

Be sure to carefully review warranty terms to grasp coverage and conditions, including potential exclusions. Note that some will have registration requirements for activation. A lengthy warranty offers crucial protection and confidence in your purchase. 

Heat Performance

Heat performance in mini-splits range all the way down to -31°F, which is beyond the operating temperature limits of ordinary heat pumps. 

Mini-splits that range all the way down to -31°F are often labeled as Hyper Heat, Extreme Heat, Max Heat and more. By combining variable refrigerant flow with outdoor temp sensing and variable outdoor fan speed, the system can be optimized for heat extraction. 

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August 24, 2023
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