• Apartments, offices, classrooms, student accommodations and small retail spaces.
• Suitable for new construction and energy-efficient retrofits.

Valsir Ariosa units are high-efficiency mechanical ventilation systems with heat recovery (MVHR), designed for residential and light commercial applications. Offering airflow capacities up to 600 m³/h.

Each unit is equipped with EC fans for constant airflow regulation, a cross-counterflow heat exchanger with up to 93% thermal recovery efficiency, and a plug-and-play design that allows fast installation and simplified maintenance.

The system is available in multiple versions to meet diverse space and project requirements:

Ariosa HV:

• Horizontal-vertical unit (H 1200 × W 800 × D 210 mm).
• Airflow: 170, 250, 330 m³/h.
• Suitable for ceiling voids or wall-mounted applications in apartments, hotels, student housing, villas and small commercial buildings (up to 245 m²).

Ariosa V:

• Vertical unit (H 940 × W 750 × D 570 mm).
• Airflow: 350, 450, 600 m³/h.
• Designed for floor-standing installations in larger residential or commercial areas (up to 450 m²).

Ariosa V Compact:

• Compact vertical unit (H 600 × W 540 × D 400 mm).
• Airflow: 150, 250 m³/h.
• Fits utility cupboards and kitchen units, serving areas up to 185 m².

Control and diagnostics:

• Wireless smart control panel with free dedicated mobile app (iOS and Android).
• Four temperature sensors per unit (one per ducting) for intelligent seasonal operation.
• Four humidity sensors (two for the Lite unit) trigger automatic boost mode when humidity levels rise.
• Two differential pressure sensors monitor filter conditions in real-time.
• Remote service centre access for live diagnostics and faster technical support.

Certifications:

• Passive House (Passivhaus) certified.
• SAP Appendix Q listed.
• Compliant with ErP 2018, EN 13141, EN 16798 standards.

Valsir Ariosa Dot – Single-Room Dual-Flow MVHR Units

Valsir Ariosa DOT units are compact, single-room MVHR systems offering decentralised ventilation without ducting. They are suitable for retrofitting or for spaces where centralised systems are impractical.

Ariosa DOT:

• Vertical unit (H 640 × W 950 × D 190 mm).
• Airflow: 100 m³/h, suitable for spaces up to 70 m².
• Optional integrated dehumidification system (DOT HP).

Ariosa DOT Mini:

• Horizontal or vertical, exposed or recessed version (H 220 × W 450 × D 190 mm).
• Airflow: 70 m³/h, suitable for spaces up to 50 m².

Valsir Ariasilent – Air Distribution System

Valsir AriaSilent is a modular, low-noise air distribution system developed for use with Ariosa MVHR units or other ventilation systems. It includes flexible, antibacterial, anti-static ducts and accessories optimized for airflow performance and ease of installation.

System benefits – Ariosa Mvhr + Ariasilent

• Enhanced thermal comfort and air quality.
• Reduced energy consumption and carbon footprint.
• Silent and invisible integration into residential or commercial buildings.
• Improved building EPC ratings and compliance with NZEB requirements.