HVAC Thermostats and Controls → Thermostats Help Topics

Here are instructions for connecting Taco SR503-4 Three Zone Switching Relays and Ecobee thermostats.

Here are instruction sheets for Nest to Taco ZVC with 3-wire application, Nest to Taco ZVC with 2-wire application, Nest to Taco SR with 3-wire application, and Nest to T...

Power sharing Wi-Fi thermostats like Nest may cause false signals if not wired properly to the Energy Manager. Click Here to see thermostat wiring instructions, or view m...

From unheard of to almost mandatory, the thermostat common wire or “C wire” has become a major issue. What is a C wire? The common wire is the neutral wire from the 24V t...

This manual contains installation, operation, and features information about the Honeywell VisionPro 8000 with RedLINK Manual.

A question asked on The Wall: What WiFi Thermostats work best for steam? Hi, guys. Im getting lots of requests for wifi thermostats.

Someone just asked me this question: If the temperature is 55 and you want it to be 65, will it get to 65 quicker by setting the thermostat to 80 rather than 65? I said n...

Someone on The Wall asks, "What is the best thermostat for a steam system?" Bill Wolfe replies: First, a couple questions. Do you have central AC? Is the house vacant dur...

In the world of heating controls, do you know what an anticipator is? Most of us have heard the word. Few of us know what it does or how to set it.

The world of thermostats for hydronics is full of myths and misunderstandings. Some of these are misinformation about thermostats in general. Some are specific to mercury...