Our Picks for Best Evaporative Swamp Cooler Thermostat Controllers

By | March 3, 2020

Best Evaporative Swamp Cooler Thermostats 2019
Swamp coolers have many positives about them from low-cost electricity prices to adding moisture in a home.

Most homes that have a swamp cooler use a manual evaporative cooler switch to control their swamp cooler. A manual switch simply turns a unit on or off along with other features such as fan only manually.

Manual switches work fine for many people but there are also set-it-and-forget options like a thermostat controls a regular air-conditioning unit.

Installing a thermostat that controls a cooler on its own with a set temperature is easy to do and common.

The wiring color codes are usually the same and even though it helps to be a handy person, installing one is not that difficult.

There are many units available with some of our favorite picks below.

As always be sure to read the reviews on Amazon or elsewhere to be sure a unit is a good fit for you.

*This post contains affiliate links.

Our Picks for Best Evaporative Swamp Cooler Thermostats

  1. DIAL 7617
  2. DIAL MANUFACTURING 7617 Cooler Thermostat 115/230V

    The Dial 7617 is a popular digital thermostat used by many to control a swamp cooler.

    Like any thermostat it can have a set temperature and will automatically turn on and off a cooler.

    It also has other built-in features such as wetting the pads by turning the water pump on before starting the blower motor.

    This helps maximize the cooling power and helps keep electrical cost lower.

    The Dial 7617 is a good unit and worth a look for anyone looking to have an evaporative cooler turn on and off automatically.

  3. LASCO 36-0233
  4. LASCO 36-0233 Evaporative Water Cooler Thermostat with Two Speed Six Position Switch

    This is a classical analog swamp cooler control switch that was very popular before digital became the standard.

    It still is widely used but is a manual switch meaning there is no automatic on and off.

    While there is many other options it is a good low-cost dependable switch that works well and gets the job done.

  5. Nashone Wireless
  6. Nashone Wireless Temperature Controller,Electric Thermostat with Remote Control Built in Temp Sensor 3 Prong Plug LCD Display Heating Cooling Mode(wirelss thermostat)

    This unit from Nashone is a new unit that controls a cooler wirelessly.

    It has an AC plug that goes between an appliance such as a cooler and a remote control to control it wireless.

    The remote as a built-in temperature sensor to automatically turn on and off the cooler.

    It is a nice controller and easy to setup by simply placing the plug between the AC outlet and cooler.

    Of course the AC outlet plug location will determine if this is a good option or not.

  7. MasterStat
  8. MasterStat Thermostat for Evaporative Coolers

    This MasterStat controller is digital and works with a 2-speed motor up to 1HP – 120 V or 2HP – 240 V

    It uses a control box that works with the thermostat to control a cooler.

    It does require a bit more wiring compared to other options but work very well once hooked up.

  9. Emerson 1F51N-619
  10. Emerson 1F51N-619 Mechanical Evaporative Cooling Thermostat

    The Emerson 1F51N-619 is a classic thermostat for a swamp cooler for those who like the retro look.

    It works very well and will automatically turn on and off an Evaporative cooler.

    The unit is all mechanical wit a lever on the side to set the temperature range.
    Best Evaporative Swamp Cooler Thermostats Comparison Chart

    NameTemperature SensorManual SwitchWireless
    DIAL 7617YesYesNo
    LASCO 36-0233NoYesNo
    Nashone YesYesYes
    MasterStat YesYesNo
    Emerson 1F51N-619YesYesNo

    In the past a manual switch for a swamp cooler was the only option but many more options are now available.

    Many people still use a manual switch since they work well and are dependable, but for those looking to shut a unit on and off automatically one of the other models would be a better choice.

    Hooking up a thermostat for a swamp cooler is not difficult but does require some wiring knowledge and skills so be sure to call a technician if in doubt.

    120/240 volts are commonly used in swamp coolers and precautions must be taken to prevent harm or damage to the equipment.

    As always be sure to read the reviews on Amazon or elsewhere to be sure a controller is the right fit for you.



5 thoughts on “Our Picks for Best Evaporative Swamp Cooler Thermostat Controllers

  1. Carmen Villa

    Are there any week-day programmable thermostat that work with evaporative coolers?
    I have been told they do exist but never get an answer on which ones.
    I found the emerson sensi to say it has more compatibility than ever…but not sure if it will work with evaporative (ducted) air conditioners.

    If you have any suggestion it is kindly appreciated.

    1. RC

      I connected a Honeywell day of the week controller in series with my low voltage White-Rogers thermostat.

  2. Ken Ronney

    I tried to get my Nashone wireless thermostat to work, but either the hand-control unit is broken, or the directions for setting the program are useless. I’ve tried and tried to set it and make it work , but it just won’t.

  3. sue

    i’d like to purchase to elz-stat dial 7625 thermostat-it appears to be out of stock every where??? do you know where i can purchase it or when it will be back in stock?? hate the digital-love the manual type-but programable for auto,etc.

  4. Martin Hughes

    Wasn’t sure if I needed to buy relays or something other than the thermostat controller. I have the controller and will attempt this install later today. I will let you know how it turns out. (Given the E.M.T.’s fibrulator works)!


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