Monica Centrifugal Roof Extract Fan 250dia – Fan Units – MON250L-2E

Professional HVAC Component: Monica Centrifugal Roof Extract Fan 250dia

You are viewing the Monica Centrifugal Roof Extract Fan 250dia (SKU: MON250L-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.

Product Specifications

Why NZ DEPOT for HVAC?

Technical Insight: Optimizing Ventilation Systems in NZ

Professional HVAC Supply: Monica Centrifugal Roof Extract Fan 250dia

You are viewing the Monica Centrifugal Roof Extract Fan 250dia (SKU: MON250L-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.

Technical Specifications & Features

About the Monica Roof Extract Units Series

The Monica roof fan/cowl system offers a compact, low-profile ventilation solution that?s easy to install and service. Now available in 150 mm and 200 mm EC motor versions, delivering quieter operation, improved efficiency, and excellent performance over long duct runs.
The Monica range is a compact and effective fan and cowl system designed for simple installation and reliable performance. With no need for time-consuming upstands, the units mount directly through roof sheeting and are sealed with Aquaseal flashing. Available in a variety of tube lengths, Monica fans provide a discreet, low-profile solution for both residential and commercial ventilation.
The range now includes the Monica 150 mm and 200 mm EC fan versions, which feature energy-saving EC motors for even greater efficiency and control.
Key Features & Benefits
Compact Design – Low-profile unit sits just 20 cm above the roof surface for an unobtrusive finish.
Easy Installation – Simply cut the roof opening, flash with Aquaseal, and secure the Monica unit with one or two screws.
Flexible Options – Other tube lengths available on request (POA) to suit project requirements.
Low Noise Levels – Fan is mounted in the external cowl, keeping sound away from the occupied roof space.
High Performance – Maintains airflow even against resistance, outperforming many similar fans.
Excellent for Long Duct Runs – Delivers reliable ventilation over extended ducting distances.
Accessible & Serviceable – Fan can be removed for repair or replacement quickly with just one or two screws.
Energy-Efficient EC Motor Versions (150 mm & 200 mm) – Added benefits of lower running costs, greater speed control, and reduced power consumption.
Speed Control Compatibility – Use with SC3 speed switch to achieve 3-speed operation on MON150L and MON200M models.

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 Roof Extract Fan 250dia 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?

🌱 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 MON250L-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