Say goodbye to miserable cold spots! Enjoy a constant flow of temperature-controlled air. You’ll forget all about air temperature! No more cycling between overheating and chilling. With the Roadrunner Comfort, you’ll enjoy consistent comfort while you focus on more important things.

The Roadrunner Comfort is a next-generation thermostat for evaporative (swamp) coolers. It uses a remote sensor to enable Active Temperature ControlTM , an exclusive feature of the Roadrunner Comfort. Instead of just switching cold air on & off like regular thermostats, it actually controls the temperature of the air from your cooler.

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

View Features

Risk-free, 60-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

Color touchscreen makes for super easy operation

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


Fewer temperature extremes

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.

How a Swamp Cooler Thermostat can make your home more comfortable

Ready for some history?

Evaporative cooler controller evolution

Still in use in 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. 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 cooler on and off.


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


An improved version of the same thing. A thermostat with an outdoor weatherproof box. More modern with more buttons. Still requires expensive installation. And it still just switches the cooler on and off.

Extra credit reading

by Nangeroni Design