Instant Quote
Best for planning, foundations, budgets and quick kit pricing.
- Instant MVHR or MEV kit estimate.
- Basic airflow calculation based on your property details.
- Automatically builds a material list and price.
- Ideal for early-stage projects.

Zehnder Caladair Silvertop 15 First Eco Commercial MVHR Unit
Product Part Number:
Caladair SILVERTOP 15 First Eco - CAL08
Optional extras for zone control via Caladair Commercial Units:
Dampers can be set to various airflow rates when open or closed. For more info, contact us at 028 2827 5150.
| Model | Length (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| Silvertop 15 | 1590 | 750 | 1200 |
For best performance, we recommend using Metal Spiral Ducting and Fittings. To ensure airtightness and durability:
Ducting in cold areas (e.g. loft spaces) must be insulated with at least 25mm thick material with thermal conductivity ≤ 0.04W/(m·K) to prevent condensation. Intake and exhaust ducts should be insulated even if there is no loft space. Bubble wrap insulation is not compliant with building regulations.
Complete your ventilation system with a range of controls, sensors, silencers, and valves/diffusers.
2-Year Parts Guarantee
These units are built to order. For lead times and further inquiries, please contact our sales team at 028 2827 5150.