About misting systems and how mist works
Will mist cooling work in humid climates?
- YES! Absolutely! In higher humidity areas like the South we recommend high pressure mist systems for optimal cooling. You can expect an 8-10 degree drop without fans, and up to an 18-20 degree temperature drop using fans.
Will the high-pressure mist wet me?
- Mist needs about 4-6 feet to completely evaporate, depending on humidity and heat levels at the time, so we take this into account when installing our mist systems.
How do mist systems “cool”?
- Mist systems works through “evaporative cooling”, which has been around for centuries. Using our high pressure mist pumps running at 700-1000 PSI and extremely small orifice nozzles, a super fine mist (droplets smaller than the diameter of a human hair; less than 5 microns) is created and is quickly evaporated when it comes in contact with heat (energy) which removes heat from the air-this process is “flash evaporation”.
- The warmer and drier the air the more moisture it will absorb, and the finer the mist, the faster the evaporation, the faster the evaporation (more heat/energy removed from the air). Simply put, imagine each mist droplet is a finger and each heat BTU is a bubble – mist pops the BTUs like a finger pops a bubble! Depending on conditions, temperatures can be decreased up to 30 F° in a matter of seconds.
What type of maintenance is required for my mist system?
- Preventative maintenance is always the best (and most cost effective) way to maintain your system. Your pump is your main investment in a high pressure mist system. Regular oil changes for your pump, checking for and replacing dirty water and mineral filters (water quality varies so its important to check your filters every week until you know how long they can go between changes), cleaning your nozzles as needed, and checking fittings are some basic things you can do to keep your system in great condition.
- Mist Works will provide you with both troubleshooting & maintenance guides with your system purchase. We service systems (even if we didn’t sell or install the products), offer replacement parts such as nozzles, fittings, filters, pump parts, new pumps, tubing, fan blades & motors, etc…anything for mist systems, we have it) and do repairs.
- Winterizing your mist system will help prevent isuses in Spring. Mist Works can winterize your system (normall we schedule this service in December) or if your pump is kept outdoors (even if in deck box) and there is a surprise freeze warning in the forecast before December, we suggest you unscrew your filter canister(s) on your misting pump and pour the water out. you can then place the canister back on the pump. This should help prevent the canister from freezing and popping. While our winterizing is a bit more detailed, including system checks, pump and line maintenance, this simple step with the filter should be a big help
Mist Cooling can help prevent and relieve heat related injury and illness
Heat stress and heat exhaustion can be deadly-even when you think you are not at risk you may be wrong! The dangers can be seen on this chart
How heat affects worker PRODUCTIVITY
NASA report CR-1205(1) “A Compendium of Human Responses to the Aerospace Environment” shows just how serious the heat can affect abilities. In the hotter climates temperatures rise to the 90’s often ,so it is especially important to avoid heat related injuries… misting fans can help to just that!
When temperatures rise to over 85°, the loss of work output and accuracy are well documented below
|Loss of Work Output||3%||8%||18%||29%||45%||62%||79%|
|Error Rate Increase||0%||5%||40%||300%||700%|
*Effective Temperature is the combined effect of temperature, humidity, and air motion on the body.
For more information on preventing and treating heat stress click HERE
Comparing mist companies and products? Keep these things in mind:
- References – This is the MOST IMPORTANT thing to check! Talk to people who own the misting products you are considering and/or have had them installed by the mist company. We are happy to provide references of both our new and old Customers.
- Experience – We have been in the misting business for over 15 years, and stand behind our products and services. Watch for fly-by-night companies
- High Pressure vs mid or low pressure mist – High pressure misting products require a high pressure misting pump, and are built for the best outdoor cooling with no surface wetting. The lower the pressure, the more moisture.
- Pricing – Compare features of fans, nozzles, fittings, mist pumps, tubing, and all other items, INCLUDING service and installation. Be sure you are comparing apples-to-apples (i.e. materials, high or low pressure, size, flow, blades, motors, experience, how long in business, etc.)
- Misting Pump features – We prefer to build our high pressure misting pumps with the following parts to potentially extend the pump life: Solenoid valve, pressure switch, water filtration. Some models have an on/off switch along with a 110V outlet & switch mounted on the side. Of course there are many more components, but these features keep your pump and motor safe when water or power is accidentally shut off (no burned up pumps!). We build our pumps in the USA, with both US and Imported components.
- Customer Service – We always strive to exceed your expectations- and be there when you need us.