The Roadrunner Comfort is a new & better kind of thermostat for existing (or new) evaporative (swamp) coolers. A drop-in replacement for switches or thermostats, its remote sensor-enabled Active Temperature ControlTM ensures precise regulation of air temperature from your conventional cooler.

The color touchscreen and intuitive controls make it a pleasure to use, and installation is only slightly more complicated than changing a wall light switch. Save the hassle, expense and environmental cost of replacing your cooler while increasing your comfort, simplifying control and helping save our planet.

Say goodbye to pesky hot and cold spots as the constant flow of temperature-controlled air maintains a comfortable environment. No more frustrating cycles between overheating and chilling – the Roadrunner Comfort keeps your cooler running smoothly, so you can relax and enjoy consistent comfort.

Roadrunner Comfort: a more comfortable breeze

“the most innovative way to control a swamp cooler household… …one of the most forward thinking companies when going with swamp cooler technology!”

– Jack, Colorado

Using one of these?

Keep your cooler

Replace the control

Get more comfort and convenience

Drop-in simplicity

Installs in minutes

Works with existing coolers

Active Temperature ControlTM

Controls blown air temperature (others just switch cold air on & off)

Continuous Comfort: reduced hot and cold spots, less temperature cycling, more consistent cool

Learn more

Easy Operation

Easy Wifi and On/Off time setup

Manual option

Helps with installation and service

Complete control is yours


Extensively tested to guarantee your comfort and satisfaction for years to come.

Colorful and intuitive

Touchscreen controls, function by color

More Sustainable

Efficient evaporative cooling pairs well with heat pumps

Repairable construction, designed to last


Fewer temperature extremes, less dryness

Save $$$$ by NOT switching

Keep your cooler, save 80% on cooling cost each year (and thousands on installation)

hecho en Nuevo Mexico

Designed & made in Los Ranchos, NM

Local installation, service and support

Our enclosure is 3D printed of PLA, a compostable thermoplastic.

The Roadrunner Comfort controller is much more than a thermostat, but this still applies: How a Swamp Cooler Thermostat can make your home more comfortable

Ready for some history?

Evaporative cooler controller evolution

These old controllers are all still being used in many homes throughout the US southwest.

Unmarked Switches

Early evaporative cooler (EC) controllers used individual switches to turn on the water pump and the fan, with a third switch to select hi/lo fan speed.

The Rotary Knob

This rotary control offers simplified operation and labeling of switch positions (imagine that!). An improvement on separate switches, it uses a single knob to select fan and pump combinations.

SelectaStat II

An early thermostat for evaporative coolers, it uses existing high voltage wiring and a mechanical sensor to control the temperature. It works by turning on and off the cooler, so the air coming in goes back and forth between none and the coldest temperature possible.

Dial Cooler Controller

This digital thermostat uses individual relays to switch the pump and fan motors. It installs easily in place of rotary or toggle switch controls. But the tiny display can be hard to read. And it’s still just switching the system on and off.


This controller provides a larger display but requires the installation of a relay box, usually at the cooler itself, plus new low-voltage wiring between the cooler and the controller. It puts circuits and relays outdoors, likely shortening their lifetime. And it still switches everything on and off.


An improved version of the same thing. A remote thermostat with an outdoor weatherproof box looks more modern and has more buttons but still requires expensive installation. And it still switches everything on and off.

Extra credit reading

by Nangeroni Design