Kees van der Westen Spiritello vs Slayer Espresso Single Group
Side-by-side specs, source-checked. Prices are manufacturer reference (€).
| Spec | Kees van der Westen Spiritello | Slayer Espresso Single Group |
|---|---|---|
| Type | Dual boiler | Dual boiler |
| Price (€) | $19,280 | $13,500 |
| Boiler | Dual boiler: 0.8 L coffee boiler plus 3.5 L steam boiler, feeding a spring-lever Idrocompresso group | Dual boiler: 1.1 L PID-controlled brew boiler + 3.3 L steam boiler |
| Boiler material | stainless | — |
| PID | no | yes |
| Pre-infusion | mechanical | mechanical |
| Group head | Idrocompresso spring lever group | saturated single group with three-stage paddle |
| Pump | rotary | rotary |
| Plumbable | optional | yes |
| Reservoir (L) | 3.5 | — |
| Heat-up (min) | — | — |
| Power (W) | 2500 | 1900 |
| Weight (kg) | 45 | 45.4 |
| Origin | Netherlands | USA |
| Released | — | — |
Kees van der Westen Spiritello source · Slayer Espresso Single Group source
Specs verified against manufacturer/retailer sources — see our sourcing & methodology. Last checked: Aug 16, 2026. Spot an error?