Usually included
- Fans, grilles, ducts or local routes, basic controls and normal commissioning logic.
- Fresh-air and balancing scope where the selected scenario includes it.
Bali
Ventilation cost in Bali should be chosen by comfort strategy, not by fan count alone. The step from local exhaust to fresh-air or balanced ERV/HRV changes duct routes, service zones, commissioning and long-term maintenance. This guide helps compare those levels clearly.
| Scenario | Area / basis | Specification | Planning range | Unit range | Important note |
|---|---|---|---|---|---|
| Exhaust-only package | 150-250 m² villa | Bathrooms, laundry and service-room exhaust with simple controls. | IDR 180M-320M | IDR 720K-2.1M / m² served area | Best baseline for practical tropical residential ventilation. |
| Balanced fresh-air / ERV package | 280-520 m² villa | Fresh-air supply, balanced extract, filters, balancing, access and commissioning records. | IDR 520M-1.15B | IDR 1.8M-4.2M / m² served area | Upper band applies when guest comfort and IAQ are part of the product promise. |
Use the lower band for practical bathroom and service-room exhaust only.
Move to the upper band when indoor air quality, premium comfort or a tighter envelope require balanced ventilation.
The cost guide is useful only when it is tied back to stage pages, checklists, mistakes, and the work sequence for execution control.
Fan-assisted supply or extract air system used when natural airflow is not enough.
Controlled intake of outdoor air into occupied spaces.
Measurement and adjustment of air volumes so a ventilation system performs as intended.
Balanced ventilation system that exchanges indoor and outdoor air with heat or energy recovery.
Practical measure of how healthy, comfortable, and usable indoor air feels for occupants.
For simple villas, often yes. For deeper plans, tighter envelopes, premium comfort goals or stronger IAQ expectations, a more complete fresh-air strategy may be justified.
Usually when the project is selling comfort, controlled indoor air quality, or a more premium operating standard than natural airflow and local exhaust alone can provide.