Convert your old swamp cooler into the most convenient, comfortable, inexpensive, healthy & sustainable way to cool your desert home

Whichever of these controls you’re currently using, replace it with unmatched performance and convenience.

Drop-in simplicity

No new wiring, installs in minutes

Works with your existing cooler

Roadrunner Comfort Controller Prototype

Colorful and intuitive

Modern appearance

Sensible touchscreen controls

Blows air at your set temperature instead of just switching cold air on and off

Continuous comfort

No more hot or cold spots

No more cold drafts

Unsurpassed convenience

free iPhone remote app

(Sorry, Android users, working on it…)

Manual control

Manual operation comes in two flavors, use whichever you prefer

Save $$$$ by NOT switching

Keep your existing cooler and save over 80% on home cooling cost each year (not to mention thousands in installation)

Moisturized, fresh air cooling is ideal for most people in a dry climate


Help forge our sustainable future by using our most efficient cooling technology

hecho en Nuevo Mexico

Designed & made in Los Ranchos

Local service and support

We have an iPhone App and awesome Support

Our enclosure is 3D printed from Hatchbox PLA.

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

by Nangeroni Design with help from New Mexico Tech and Los Alamos Labs

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 (and cost-conscious) 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.