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*Monica Centrifugal Wall Extract Fan 250dia* limited stock – Fan Units – MON250LB-2E
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$1,441.48$2,336.98 (-38%)
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🏆 Best Price Guaranteed*
Discount per Quantity
| Quantity | 1 | 2 - 4 | 5 - 10 | 11 - 29 |
|---|---|---|---|---|
| Discount | 0% | 10% | 15% | 20% |
| Price | $1,441.48 | $1,297.33 | $1,225.26 | $1,153.18 |
Professional HVAC Component: *Monica Centrifugal Wall Extract Fan 250dia* limited stock
You are viewing the *Monica Centrifugal Wall Extract Fan 250dia* limited stock (SKU: MON250LB-2E). A professional-grade component from the Fan Units series, engineered for New Zealand’s residential and commercial ventilation systems. Sourced directly from the Smooth Air supply chain for NZ Depot.
⚠️
Technical Verification Required
Ventilation components require precise sizing. Please verify that this MON250LB-2E model matches your system’s diameter and connection type (e.g., Big End vs Small End) before ordering.
Key Specs:
Category: Fan Units
Type: Monica Wall Extract Units (2pole, 1phase)
Product Specifications
The MON Series Wall-Mounted Fan provides quiet and efficient ventilation in a compact, weather-protected cowl design. Mounted externally, it offers low noise levels and easy access for maintenance while maintaining strong performance.
Application
Suitable for wall or soffit installation in residential and light commercial applications. Can be installed as a wall down discharge or side discharge unit. Ideal for areas requiring effective airflow in a slim external profile.
Features / Benefits
- Simple installation for wall or soffit mounting
- Very low sound level – fan positioned outside the ventilated space
- Compact profile – unit projects only 100-130 mm from the wall
- High-performance European centrifugal fan provides strong airflow against resistance
- Performs efficiently on long duct runs
- External location allows quick service, removal, or replacement
| Model | Airflow FID L/s | Fan Speed RPM | Single Phase | Max Temperature Degrees Celsius | dB(A) @ 3m | |
| Nominal Watts | Nominal Amps | |||||
| MON250LB-2E | 275 | 2500 | 155 | 0.68 | 45 | 45 |
Products specifications
| Attribute name | Attribute value |
|---|---|
| Fan Specifications | |
| Installation Location | Wall |
| Materials | Galvanized Steel |
| Colour | Silver, Powder Coating Available |
| Face Size (mm) | 350 x 350 |
| Cowl Height (mm) | 130 |
| Spigot Diameter (mm) | 250 Ø |
| Spigot Length (mm) | 50 |
Why NZ DEPOT for HVAC?
🏭
Trade Pricing
We strip out the showroom markup. You pay for the Fan Units quality, not the retail overheads.
🚚
Site Delivery
Direct dispatch to your home or job site. We use specialized freight for bulky ducting and fragile components.
✅
NZ Standards
Genuine NZ market product. Fully compliant with local building and ventilation codes.
Technical Insight: Optimizing Ventilation Systems in NZ
Maximizing Airflow Efficiency
Whether you are installing a bathroom extractor, a range hood, or a full balanced pressure heat recovery system, the physics of airflow remains the same: air hates friction. Every component in your system, from the ducting to the joiners and grilles, introduces “Static Pressure” (resistance).
Using high-quality components like the *Monica Centrifugal Wall Extract Fan 250dia* limited stock is crucial for minimizing this resistance. Cheaper, poorly molded fittings or rough-bore ducting can create turbulence, which reduces the extraction rate of your fan. This means your fan has to work harder, creating more noise and using more electricity, while moving less damp air out of your home.
Pro Tip: When connecting ducting, always stretch flexible ducting taut. A saggy duct creates immense resistance. Use rigid joiners and bends where possible to maintain a smooth internal profile for the air to glide over.
Building Code G4 & Healthy Homes Standards
In New Zealand, ventilation isn’t just about comfort; it’s a compliance issue. Under Building Code Clause G4, spaces where people live must have adequate ventilation to prevent mold and moisture buildup. The Healthy Homes Standards further enforce this for rental properties, requiring specific extraction capacities for kitchens and bathrooms.
Ensuring you use the correct diameter components (like 150mm for kitchens) is vital. Using a restrictive component in a 150mm system effectively chokes it down, potentially causing it to fail a flow test. Smooth Air products are designed to meet AS/NZS 4254 standards, giving you peace of mind that your installation is up to code.
Material Selection: PVC vs. Galvanized Steel
Choosing between plastic (PVC) and metal components depends on the application.
- PVC (Plastic): Ideal for residential use, especially in bathroom and laundry extracts. It is lightweight, immune to corrosion (rust), and has a very smooth internal surface for excellent airflow. It helps reduce vibration noise transfer.
- Galvanized Steel: The standard for commercial HVAC and high-temperature applications. It offers superior structural rigidity and fire resistance. If your system passes through fire-rated walls, steel components (often combined with fire dampers) are non-negotiable.
This specific item, the *Monica Centrifugal Wall Extract Fan 250dia* limited stock, utilizes materials selected for durability and performance in its intended class.
Logistics & Warranty
Secure Shipping: We utilize a “Direct-to-Site” 3PL model. Your order for the MON250LB-2E is routed from the nearest strategic distribution hub (Auckland, Wellington, or Christchurch) directly to your address. This reduces road miles and handling, ensuring your parts arrive in pristine condition.
NZ Warranty: As a 100% NZ-owned business, all purchases are covered by the Consumer Guarantees Act. Whether you are a trade professional or a DIY homeowner, you are protected against manufacturing defects.
© 2026 NZ DEPOT Limited. All Rights Reserved. | 100% NZ Owned & Operated.
Professional HVAC Supply: *Monica Centrifugal Wall Extract Fan 250dia* limited stock
You are viewing the *Monica Centrifugal Wall Extract Fan 250dia* limited stock (SKU: MON250LB-2E). A critical component within our Fan Units range, designed specifically for New Zealand’s residential and commercial ventilation requirements. Sourced directly from the Smooth Air supply chain for NZ Depot.
⚠️
Important: Measurement Verification
HVAC components require precise sizing. Please confirm this MON250LB-2E model matches your engineer’s specifications before ordering.
Dimensions: Length: 50mm | Width: 250mm | Height: 250mm.
Technical Specifications & Features
The MON Series Wall-Mounted Fan provides quiet and efficient ventilation in a compact, weather-protected cowl design. Mounted externally, it offers low noise levels and easy access for maintenance while maintaining strong performance.
Application
Suitable for wall or soffit installation in residential and light commercial applications. Can be installed as a wall down discharge or side discharge unit. Ideal for areas requiring effective airflow in a slim external profile.
Features / Benefits
- Simple installation for wall or soffit mounting
- Very low sound level – fan positioned outside the ventilated space
- Compact profile – unit projects only 100-130 mm from the wall
- High-performance European centrifugal fan provides strong airflow against resistance
- Performs efficiently on long duct runs
- External location allows quick service, removal, or replacement
| Model | Airflow FID L/s | Fan Speed RPM | Single Phase | Max Temperature Degrees Celsius | dB(A) @ 3m | |
| Nominal Watts | Nominal Amps | |||||
| MON250LB-2E | 275 | 2500 | 155 | 0.68 | 45 | 45 |
Products specifications
| Attribute name | Attribute value |
|---|---|
| Fan Specifications | |
| Installation Location | Wall |
| Materials | Galvanized Steel |
| Colour | Silver, Powder Coating Available |
| Face Size (mm) | 350 x 350 |
| Cowl Height (mm) | 130 |
| Spigot Diameter (mm) | 250 Ø |
| Spigot Length (mm) | 50 |
About the Monica Wall Extract Units (2pole, 1phase) Series
Effective wall mounted fan.
Easy installation as either a wall down discharge or mounted up under a soffit as a side discharge unit
Low sound level as the fan is mounted in a box cowl outside (not in the roof space), as far as possible from the ventilated space
Positioned on the wall so that it protrudes only 100mm to 130mm (depending on model)
Has better performance working against resistance than many other fans currently available
Provides excellent performance when fitted to long duct runs
Unit is readily accessible, and can be removed and repaired or replaced as required with the removal of one or two screws
2E = 2 pole, 1 phase
Use with SC3 speed witch to get 3 speeds with MON150LB and MON200MB
Understanding NZ HVAC Compliance
When selecting ventilation equipment for New Zealand homes and businesses, compliance with AS/NZS 4254 and UL 181 standards is non-negotiable. The *Monica Centrifugal Wall Extract Fan 250dia* limited stock is engineered to meet these rigorous safety and performance benchmarks.
Why R-Value Matters
For insulated ducting components, the R-Value (Thermal Resistance) is critical. A higher R-Value ensures that the air travelling through your system maintains its temperature—whether hot or cold—from the unit to the outlet. This reduces energy load on your heat pump or AC unit, lowering electricity bills and increasing system longevity. This product offers an R-Value of (if applicable), ensuring thermal efficiency.
Fire Safety & Materials
Safety is paramount in ceiling spaces and wall cavities. Smooth Air components utilize fire-resistant materials, often featuring a metallized Mylar outer jacket and encapsulated steel wire cores. This construction not only prevents fire spread but also maintains the structural integrity of the ducting under high pressure.
Why NZ DEPOT for HVAC?
🏭
Trade Pricing
We strip out the showroom markup. You pay for the Fan Units quality, not the retail overheads.
🚚
Site Delivery
Direct dispatch to your home or job site. We use specialized freight for bulky ducting and fragile components.
✅
NZ Standards
Genuine NZ market product. Fully compliant with local building and ventilation codes.
🌱 Sustainable Supply Chain Initiative
At NZ DEPOT, we are modernizing the New Zealand trade supply chain. Traditional retail involves shipping products from a manufacturer to a central warehouse, then to a retail showroom, and finally to the customer. This “multi-hop” model adds unnecessary carbon emissions and cost.
By utilizing a Direct-to-Site 3PL model, we eliminate the “Showroom Hop.” Your order for the MON250LB-2E is routed from the nearest strategic distribution hub (Auckland, Wellington, or Christchurch) directly to your address. This logistical efficiency reduces road miles, lowers our carbon footprint, and allows us to pass significant savings on to you.
🛡️ Warranty & Consumer Protection
Consumer Guarantees Act (CGA)
We are a 100% New Zealand-owned and operated entity. All purchases made through NZ Depot are fully covered by the Consumer Guarantees Act 1993. Whether you are buying for personal use or commercial fit-out, you are protected against manufacturing defects and faults.
Secure Transaction Promise
Your security is paramount. We utilize industry-standard SSL encryption for all data transmission. We do not store credit card details locally; all payments are processed via secure, PCI-compliant gateways.
© 2026 NZ DEPOT Limited. All Rights Reserved. | 100% NZ Owned & Operated.
Additional information
| Dimensions | 50 × 250 × 250 mm |
|---|---|
| MPN | |
| Material | |
| Colour |
Reviews
| 5 star | 80% | |
| 4 star | 20% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
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