HVAC Motion Logo Design

I need a short motion logo that conveys the reliability and tradition of an established HVAC company. The overall look should lean classic rather and minimalist, but it still has to feel clean and professional when it animates on screen. Deliverables 1. A 3–5 second animated logo in MP4 (1080p) and GIF/PNG sequence for transparent use. 2. Source project file (After Effects, Blender, or similar) with neatly organised layers.