Sankey is a leading brand of refrigerant based equipment and quality home appliances in Belize, including high efficient inverter-type split air conditions, refrigerators, freezers, beverage coolers and water dispensers; washing machines, LED Flat Screen TV’s, microwaves, and ventilation fans.




Many people buy an air conditioner that is too large, thinking it will provide better cooling. However, an oversized air conditioner is actually less effective — and wastes energy at the same time. Air conditioners remove both heat and humidity from the air. If the unit is too large, it will cool the room quickly, but only remove some of the humidity. This leaves the room with a damp, clammy feeling. A properly sized unit will remove humidity effectively as it cools.

To figure out which size unit is best for your cooling needs:

  1. Determine the square footage of the area to be cooled using the following formulas:

    • For square and rectangular rooms, multiply the length of the area by its widt
    • For a triangular area, multiply the length of the area by the width and divide by 2 Most rooms can be further divided into these basic shapes to determine the square footage.

    If the shape of your room is other than square or rectangular, ask your sales associate to help you determine the square footage.

  2. Using the square footage and the chart below, determine the correct cooling capacity. Cooling capacity is measured in British thermal units (BTUs) per hour.

    Area To Be Cooled (square feet) Capacity Needed (BTUs per hour)
    100 up to 150 5,000
    150 up to 250 6,000
    250 up to 300 7,000
    300 up to 350 8,000
    350 up to 400 9,000
    400 up to 450 10,000
    450 up to 550 12,000
    550 up to 700 14,000
    700 up to 1,000 18,000
    1,000 up to 1,200 21,000
    1,200 up to 1,400 23,000
    1,400 up to 1,500 24,000
    1,500 up to 2,000 30,000
    2,000 up to 2,500 34,000

  3. Make any adjustments for the following circumstances:
  • If the room is heavily shaded, reduce capacity by 10 percent.
  • If the room is very sunny, increase capacity by 10 percent.
  • If more than two people regularly occupy the room, add 600 BTUs for each additional person. o If the unit is used in a kitchen, increase capacity by 4,000 BTUs.
  • Consider where you install the unit. If you are mounting an air conditioner near the corner of a room, look for a unit that can send the airflow in the right direction.





To put it simply - Inverters cost more money to buy, but are more efficient to run, which saves you money on your energy costs, which makes them better "value for money" over all.

Another advantage to Inverters is they are quieter than conventional "Fixed Speed" aircon units due to the way they achieve their efficiency.

So whats the Difference?

What is a Fixed Speed Unit?

This unit only has a single speed compressor motor that is either on or off.

It works similar to a fan heater that switches off when the desired temperature is reached and on again when the temperature drops to a set level.

What does Inverter Mean?

Inverter technology uses a variable speed compressor motor similar to a car. It simply slows down and speeds up as needed to hold a selected comfort setting.

Inverter technology provides a more precise room temperature without the temperature fluctuations of fixed speed systems.

Inverter vs Standard:

  • Inverter units are Approximately 30% more efficient than fixed speed units.
  • Inverter units reach the set room temperature quicker.
  • The speed control of the outdoor unit also means quieter operation, this is important especially at night in residential areas.


Inverter Systems

  • Increased output to achieve set temperature faster.
  • Then varies the output to maintain a constant room temperature.

Fixed Speed Type

  • Slowly gets to temperature as output rating is fixed.
  • Then turns on and off to maintain room temperature.


To get these efficiency gains it is important to use the air conditioner as it is intended:

  • the unit has to be sized right for the room you are heating/cooling
  • it is best to run the unit continuously and set for the desired room temperature (i.e. such as 21 Celcius) and not at a full setting for heating or cooling (as most people do)
  • and of course - a well insulated, low-thermal mass villa helps too...