Vallox
Vallox 51 MV heat recovery ventilation unit
Compact Finnish heat recovery unit for apartments up to 60 m².
Price on request
Final price depends on installation scope
- Suitable area: up to 60 m²
- Heat exchanger: Plate heat exchanger
- Energy class: A+ energy class
✓ Sales and installation across Estonia
51 MV description
Vallox 51 MV is a heat-recovery ventilation unit (HRV) that continuously supplies fresh air throughout the building while recovering heat from the exhaust air. Vallox is a Finnish manufacturer known for winter-proof AHUs designed for Nordic conditions. The 51 MV model is designed specifically for small apartments and studios, where both energy savings and quiet operation matter.
How Vallox 51 MV works
The unit draws fresh air from outside while simultaneously extracting stale air from the rooms. A plate heat exchanger transfers heat from the exhaust air to the incoming fresh air without the two streams mixing. The result is fresh, filtered supply air that in winter arrives at almost room temperature. This significantly reduces heating costs — often 30–50% compared to natural ventilation.
Energy efficiency and indoor climate
Vallox 51 MV suits objects of up to 60 m² and is designed to deliver the highest possible heat recovery. Supply air is filtered — typically with an F7 or better filter — which stops pollen, dust and fine particles (PM2.5). It is especially valued by allergy sufferers and families with young children. Filtered air keeps indoor CO₂ levels low, reduces moisture in bathrooms and kitchens, and prevents mould.
Control and automation
This means the unit runs only as much as needed — saving electricity and extending filter life.
Why choose Vallox 51 MV
Vallox is well known on the Estonian market for quality, durability and long-term spare-parts availability. 51 MV is a popular choice thanks to its strong price-to-performance ratio and easy maintenance. We sell the unit together with professional installation across Estonia, including design, ductwork, commissioning, balancing and ongoing service and filter changes.
51 MV technical specifications
| Recommended floor area | up to 60 m² |
|---|---|
| Annual efficiency | A+ energy class |
| Heat exchanger type | Plate heat exchanger |
| Control | MyVallox Control, WiFi app |
Who is Vallox 51 MV for?
Well suited for properties with up to 60 m² of living space.
- 1–2-room apartment
- Studio or small commercial space
- Apartment with minimal utility space
- Summer house for year-round use