In hydronic heating, to control where heated water goes to various sections of a building, the system might rely on two or more zone valves. A zone valve opens or closes based on demand from a ...

Developer Tomas Sala has called on Valve to improve Steam's social functionality so indie devs can maintain an audience in between games rather than restarting from scratch on social media. He calls ...

“The map has been redesigned around being three lanes rather than four,” Valve writes. “This has a large range of accompanying map-wide changes regarding visuals, building layouts ...