Say goodbye to miserable cold spots as a constant flow of temperature-controlled air makes you forget all about air temperature. No more cycling between overheating and chilling! The Roadrunner Comfort uses your cooler smarter, so you can enjoy consistent comfort while you focus on more important things.

The Roadrunner Comfort is a next-generation thermostat for evaporative (swamp) coolers. Its remote sensor-enabled Active Temperature ControlTM actually controls the temperature of the air from your cooler, instead of just switching cold air on & off.

The color touchscreen and intuitive controls make it a pleasure to use. Save energy and water, be more sustainable. Fully guaranteed, customer service second to none.

Graphic: Active Temperature Control feels so good, upgrade your swamp cooler today.

“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

Risk-free, 30-day Return 100% Satisfaction Unconditionally Guaranteed

A variety of older swamp cooler thermostats

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

Easy Operation

Easy Wifi and On/Off time setup

Manual option

Helps with installation and service

Complete control is yours

Depiction of Manual screen display
Photo of controllers under long-term test


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

More Sustainable

Saves water, making it the most efficient cooling method available

Designed to last decades


Fewer temperature extremes than conventionally controller swamp coolers. Less dryness than heat pumps or refrigerated air.

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

Outstanding local 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