The Maestro BAL bushfire-rated roof ventilator has an aluminium dome and housing with a built-in spark guard mesh and frame, which makes the fan suitable for installation in bushfire-prone areas. The fan has a high-quality Electronic Commutating (EC) motor with a transformer. You can select low, medium, or high speed with the transformer. There is also an ‘auto’ function. The cable provided by the transformer is approximately 1.8m in length. If you have an available power point that can be reached, then no electrician is required. If a power point is unavailable, an electrician must install one.
How the Automatic Function Works
The variable speed response is relative to ambient temperature and humidity in the area where the speed controller is located. The fan starts at LO speed when the temperature reaches 30°C and then ramps up to HI speed at 45°C. For humidity, the fans will start at LO speed when humidity reaches 65%rH and increase in speed until MED speed reaches 80%rH.
Speed | dB(A) | Power (W) | Capacity (m3/hr) |
Low | 35.4 | 4.8 | 220 |
Medium | 45.1 | 11.2 | 377 |
High | 52.9 | 30.8 | 596 |
Features:
- Rated to BAL-40 (AS3959-2009)
- Stainless Steel ember guard
- Maximum flow rate of 596m3/hr
- Preset automatic temperature-controlled variable speed setting or three preset fixed speed settings
- Can be fitted with ducting and a ceiling grille in specific rooms in the home (not supplied with Maestro BAL)
- High-efficiency 24V DC motor
- Two-year warranty on the body and motor, and one year on the power pack and speed controller
Benefits
- Ideal for homes in bushfire-rated areas
- Prevents burning embers from entering the roof
- Effective ventilation in most climates
- Removes heat load in warm months and reduces condensation in the roof space in cool months
- With ducting and a ceiling grille, moisture can be removed from rooms like bathrooms and laundries
- Complements most metal or tile roofs
- Quiet operation, low running costs and reduced energy usage
- Improves air quality
Maestro BAL specifications:
- Dome and Housing: Aluminium
- Flashing: soft aluminium
- Mesh: Sparkguard stainless steel with 1.9mm aperture
- Throat diameter: 300mm
- Maximum airflow: 596 km/h
- Motor: 24 VDC
- Product weight: 3.7kg
- Installation range: 3° to 35°
Peter –
Product looks the goods but I haven’t installed it yet.
Geoff (verified owner) –
Great product. Easy to fit and it works beautifully