The New Engineer — HVAC for ChatGPT

com.thenewengineer/hvac

European HVAC sizing: EN 12828 expansion vessels, EN 378 zones, Swiss refrigerant rules.

client:ChatGPT transport:streamable-http tools:3

Install The New Engineer — HVAC in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://thenewengineer.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs