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.

Product Part Number: 445655
The Vent-Axia Sentinel Multivent H Unit is a high-performance ventilation solution designed to provide demand-controlled ventilation for residential and commercial applications. Featuring an integral humidity sensor, this unit is perfect for controlling indoor air quality while reducing energy consumption. The Sentinel Multivent H ensures precise ventilation rates in 1% increments, allowing the fan speed to adjust based on relative humidity levels. With a sleek design and acoustic lining, it operates quietly to improve comfort in any space.
It complies with Building ADF (System 3), making it an ideal choice for new builds or existing properties looking for effective ventilation.
| Feature | Details |
|---|---|
| Max Airflow | 450m³/h |
| Energy Efficient Motors | EC/DC motors, 1/3 less energy lost compared to conventional AC motors |
| Best Fan Power (SFP) | 0.16 wls |
| Dimensions (H x W x D) | 310mm x 360mm x 260mm |
| Duct Connections | 4 x 125mm or 100mm spigots |
| Mounting Options | Wall, Ceiling, Loft |
| Noise Reduction | Acoustically lined PVC outer casing |
| Humidity Sensor Features | Increases fan speed based on humidity, reacts to rapid increases in humidity |
| Dry Out Mode | Boost for 1 week post-installation to remove moisture |
| Warranty | 2-year standard, optional 5-year parts warranty |
For more details or assistance with installation, contact us today!
Enter a few basic details about the property below and we’ll calculate a suitable Ventilation system with an instant quote.
I can help with room counts, MVHR vs MEV, kit options and understanding your quote before you continue.
Bernie is a guide only. Please check your inputs before creating the quote.
Add the floor area and room counts for the property.
The system checks the required ventilation rate and builds the kit.
You’ll be taken to a full quote page with the kit breakdown and pricing.
Larger homes, complex layouts or systems requiring multiple units may be better suited to a manual layout guide.
For larger or more complex properties, our design team can review your plans and provide a free estimate with the most suitable system and kit configuration.