Good points

Brand: Vent-Axia
Heat recovery up to 84%
Airflow up to 42 m³/h
Built-in anti-freeze protection

Vent-Axia Heat Save Decentralised HRV Unit 160 mm

The Vent-Axia Heat Save decentralised HRV unit 160 mm is a flexible, energy-efficient balanced ventilation unit with heat recovery. Unlike a central HRV unit, the Vent-Axia Heat Save requires no ductwork during installation and can be easily fitted into walls up to 460 mm thick. The Vent-Axia Heat Save provides continuous ventilation, contributing to a healthy and comfortable indoor climate. Polluted indoor air is expelled and exchanged with fresh outdoor air. The integrated ceramic heat exchanger recovers heat from the extracted air to preheat the incoming fresh air. Perfect for anyone wanting to ventilate a home without heat loss or high energy costs.

Benefits and Features

Heat recovery up to 84%: This decentralised HRV unit reuses the heat from exhaust air for maximum energy efficiency and savings on high energy bills.
Easy installation: With no ductwork required for installation, the unit can be installed quickly and simply.
Maximum airflow 42m³/h: Provides sufficient air renewal for small to medium-sized rooms without oversizing.
Alternative to central HRV: Ideal for homes where a central HRV unit is not feasible or desired. With the Heat Save, you supply fresh air to your home without major renovations.
Maintenance-friendly: PM10 G4 filters are easily replaceable by the user through the removable inner panel, requiring no tools or professional assistance.
Continuous Ventilation Mode: In this mode, the fan runs in one direction only, with no heat recovery taking place. Outdoor air flows directly inside, making it perfect for summer night cooling or quickly evacuating stale and humid air.

Applications and Usage

The Vent-Axia Heat Save is ideal for ventilating individual rooms such as bedrooms, home offices, apartments, and renovation projects where a central HRV system is not possible or desired. The unit operates automatically via a preset ventilation level, but can also be manually controlled with a wall switch or the optional HS-S8 zone controller. This allows you to adjust ventilation levels and modes yourself. Thanks to the built-in sensor and timing cycle, the unit automatically alternates between exhaust and supply, maintaining balanced airflow. To create a perfectly balanced ventilation system, it is recommended to purchase HRV units in pairs.

Various accessories are available separately for the Vent-Axia Heat Save to facilitate maintenance or expansion. These include a G4 (PM10) filter set for periodic filter replacement and a silencer to further reduce noise levels. For functional maintenance, a replacement motor fan and ceramic heat exchanger are also available separately. Additionally, an extended wall sleeve is offered for thicker walls, and the optional HS-S8 zone controller enables centralised control of multiple units for optimal ventilation per room.

Technical Information

The unit has a duct diameter of 160 mm and is mounted directly into the external wall. It is standard suitable for walls up to 460 mm thick, but can be extended up to 745 mm with an extension kit. The Heat Save operates on 230 V and is equipped with an earthed plug. The ceramic heat exchanger provides frost protection and automatic heat recovery. Noise levels range between 14 and 36 dB(A), and the unit functions within ambient temperatures from -20°C to +50°C.

Brand	Vent-Axia
Category	Decentralised MVHR Vent-Axia
GTIN	8719956565182
Manufacturer's item number	8000001760
Article number	19500570

Specifications

Category code	73
Housing material	Plastic
Heat recovery by	Push Pull (regenerative)
Material heat exchanger	Ceramics
Housing material quality	Other
Max. volume flow according to 1254/2014/EU	43 m³/h
Electrical connection	Cable
Type of motor	Electronically commutated (EC)
With zone controller	No
With heating element	No
Frequency	50 Hz
With wired control unit	Yes
Supporting protocol for Modbus	No
Type of frost protection	Other
With internal humidity (RH) sensor	No
Efficiency supply filter according to ISO 16890-1:2016	60 %
Suitable for extra VOC sensor	Yes
Degree of protection (IP)	IP20
With digital display	No
Suitable for wired control unit	Yes
Energy efficiency class according to 1253/2014/EU	A
With volatile organic compound (VOC) sensor	No
Operation by app	No
Suitable for zone controller	Yes
Suitable for wireless remote control	No
With bypass	No
Supply filter according to ISO 16890-1:2016	ISO ePM10
With internal carbon dioxide (CO2) sensor	No
Fuse size of the device	3 A
Height outdoor unit	220 mm
Width outdoor unit	220 mm
Remote control included	No
Suitable for (extra) humidity (RH) sensor	Yes
Suitable for (extra) carbon dioxide (CO2) sensor	Yes
With thermal overload protection	Yes
Min. diameter wall opening	180 mm
Wall thickness (max)	460 mm
Wall thickness (min)	310 mm
Thermal efficiency of heat recovery according to 1254/2014/EU	84 %
Energy label	A
Pressure stability at -20 Pa	30 %
Pressure stability at +20 Pa	30 %