Last month, we covered the basics of classifying switches and relays based on poles and throws. Once you learn these, it’s easy to apply switches and relays to create “hard-wired” control logic - part two.

The basics of relays and switches - part one.

Heating experts have long touted hydronics as the far superior comfort technology over forced air due to better operational efficiencies and improved comfort. According to Research and Markets, the global hydronic systems market is poised to grow $1.3 billion from 2021-2025, driven by the growing need for energy-efficient cooling and heating systems and increase in construction activities worldwide.

If your office routine is anything like mine, you’re probably typing cryptic passwords into your desktop computer, laptop, smartphone or tablet throughout the day to access websites or cloud-based software that’s essential to your business.

For decades, changing out a thermostat for a retrofit hydronic heating system was a simple task for a service technician. From Bangor, Maine, to Breckenridge, Colorado, the mere two, 18-gauge thermostat wires running through a home was not a concern (short of the random nail or mouse taking one of the two out).

Gillis has more than 20 years of engineering and application experience.

MrPEX Systems introduced a new line of wireless, internet-based controls.

Radiant floors don’t necessarily have to feel warm to work properly.

Germany remains, by far, the biggest hydronic controls market. 

A simple circuit to coordinate fresh air dampers.