How much ventilation does a swamp cooler need?

The recommended amount of airflow is 1 to 2 square feet for every 1,000 CFM the swamp cooler uses. Swamp cooling units can vary in their airflow capacity as low as 3,000 CFM and as high as 25,000 CFM.

Does evaporative cooler need vent?

Evaporative coolers don’t require venting like portable ACs, but the air forced out will still require an exit path in order to ensure sufficient cooling (this can usually be accomplished with an open door or window).

What does vent only mean on a swamp cooler?

During vent-only operation, the water pump does not operate and the outdoor air is not humidified. This lets you use the evaporative cooler as a whole-house fan during mild weather. Control the cooler’s air movement through the house by adjusting window openings.

Does an evaporative cooler need a window open?

A Swamp Cooler Will Require Open Windows
In order for the unit to work properly, the pads should be damp, not soaked. There is a pan at the bottom of the air conditioner. There is also a small pump in the pool of water which lifts the water onto the pads.

How many windows should be open for evaporative cooling?

Open the windows or vents on the leeward side of the house to provide 1 to 2 square feet of opening for each 1,000 cfm of cooling capacity.

Can a swamp cooler cool an entire house?

Unfortunately, a swamp cooler will make your home or a room damper because of the way it cools the air (by evaporating water). That’s why it’s best to use this system in a low-humidity environment. One way to deal with this downside is to open a window, although it will cause the cooler not to work as effectively.

What are the drawbacks of evaporative cooling?


  • does not perform well in humid climates or during rainy periods.
  • temperature control is limited.
  • basic air filter system only, many airborne irritants or odours missed.
  • not ideal for those with asthma or respiratory issues.
  • can use up to 25 litres of water* an hour depending on the fan speed and humidity.

Do all air conditioners have to be vented outside?

The short answer is yes. Much like any air conditioning system, all portable air conditioners need to be vented in some form or fashion. Portable air conditioners pull in warm air, cool it, and expel the cooled air out of the front of the unit and the remaining warm air and moisture out of the back of the unit.

Do ventless air coolers work?

Do ventless air conditioners work? Yes, they do! There is no refrigeration process or compressor to produce hot air like an air conditioner that must be vented. An evaporative cooler does not reduce the overall temperature inside a room or dry the air in the same way an air conditioner does.

Do evaporative coolers increase humidity?

How much moisture will an evaporative cooler add to the environment? An increase in humidity of approximately two to five percent is produced depending on the temperature and humidity of the environment. This increase is not noticeable in a ventilated area where the air produced by the cooler is exhausted.

What is the best way to run an evaporative cooler effectively?

Since these coolers use water and air circulation to cool indoor spaces, they perform efficiently.
5 simple tips to maximise the efficiency of your evaporative…

  1. Open your windows a little. …
  2. Use it seasonally. …
  3. Let your cooler run before turning on the blower. …
  4. Make sure the pads are wet. …
  5. Service and maintain your cooler.

Can you leave evaporative cooling on overnight?

Yes, it is possible to leave an evaporative cooler on overnight. It is common for some people to leave the cooler on continuously for a 24-hour period. There is no issue with the system running continuously, but you may wish to consider leaving it on overnight if you live in a humid climate.

At what humidity do evaporative coolers become ineffective?

Yet, evaporative cooling remains a physical process: with a relative humidity of 80% or 90%, a two-stage evaporative system cannot cool as effectively as at lower humidity levels.

Can you zone evaporative cooling?

There is no zoning option on the evaporative cooler. However a simple method that is very effective is to control the air by slightly opening windows in the room you want the air. The evaporative system slightly pressurizes the home therefore an open window immediately directs the air to that area.

How much water does an evaporative cooler use per day?

Evaporative coolers use both electricity and water. How much water is used depends on the humidity of the day and the fan speed that the unit is set to operate on. A portable unit might use up to 4 litres per hour while a central system could use as much as 25 litres per hour.

Do evaporative coolers use a lot of electricity?

How much energy does an evaporative cooler use? Power use is generally low (200 to 400 watts) because only the fan and water pump use energy. But this can vary widely depending on features and capacity, and there are domestic units that draw up to 2kW or more.

How long do evaporative coolers last?

Evaporative cooling systems were built to last a long time. The average life expectancy is 15 – 20 years.

Can you convert evaporative cooling to refrigerated?

“Can I upgrade from an evaporative to refrigerated ducted air conditioner?” Yes, you can. This is what we call an evaporative changeover. Changing over from evaporative to reverse cycle refrigerated ducted air conditioning is a simple task that is often completed in 1 day.

How much does it cost to replace evaporative with reverse cycle?

It can cost as little as $2,600 to replace your evaporative air conditioner and you get the benefit of the low running cost of an evaporative air conditioner for summer cooling and having an efficient form of heating.

Can you use AC and evaporative cooler together?

Can I use a swamp cooler and an air conditioner at the same time but in different rooms? Absolutely, yes. We recommend using a swamp cooler with air conditioning in a different room to avoid installing an AC unit in every room.