
| Feature | Unit A (Inefficient Design) | Unit B (Optimized Design) |
| Volume | 2,000 Liters | 1,500 Liters |
| Heat Up Time | 8 Hours | 5 Hours |
| Chemical Usage | High | Moderate |
| Annual Energy Cost | Index: 100 | Index: 75 |
| Dimension | Novice Procurement | Mature Procurement |
| Cost Focus | Initial Unit Price (sticker price) | Total Cost of Ownership (TCO) over 5 years |
| Performance | Jet count and lights | Pump reliability and heater efficiency |
| Installation | "Can we fit it?" | "How fast until it generates revenue?" |
| Maintenance | "Is it self-cleaning?" | "Are parts universal and stockable?" |
| After-Sales | "What is the warranty length?" | "What is the downtime risk management?" |