Wall-Mounted | Ceramic Heat Exchanger | HEPA + Carbon Filtration | 160mm Duct | CE & RED Certified.
Available in Remote Control or WiFi (Tuya) models
Warranty: 36 months, Free shipping to EU, 14-day return policy
What This Unit Does
The VT501 is a decentralised, single-room heat recovery ventilator. It continuously extracts stale indoor air, recovers thermal energy through a ceramic heat exchanger, and supplies filtered fresh air — all through a single 160mm wall penetration.In winter, it pre-warms incoming air. In summer, it pre-cools it. The two air streams never mix. Result: stable room temperature, reduced HVAC runtime, and measurable energy savings.
No ductwork. No ceiling void required. One unit ventilates one room.
Air Quality You Can Monitor & Control
- VT501-WiFi: Connects to the Tuya Smart app. Monitor real-time CO₂, set ventilation schedules, and automate airflow based on room conditions.
- VT501-Remote: Includes an intuitive IR remote for instant speed and mode selection.
Both models offer three operating modes:Fresh Air Intake,Exhaust, and65s Heat Recovery Cycle.
Installation Without Renovation
Designed for retrofit and new builds. Requires only one Ø163 mm core drill through an exterior wall. The telescopic duct adjusts to wall thicknesses from 200 mm to 500 mm. No ceiling voids, no duct runs, no specialist HVAC contractor required. Mount, connect, and ventilate.
Verified Performance Data
| Parameter | Value |
|---|---|
| Heat Recovery Efficiency | Up to 90% (ceramic core) |
| Airflow Capacity | 20 – 60 m³/h (28 – 35 CFM) |
| Sound Level | ≤30 dB(A) at standard speed |
| Power Consumption | 2.5W (sleep) / 3.0W / 4.5W / 8.5W |
| Supply Voltage | 100 – 240V AC, 50/60Hz (universal) |
| Motor | Brushless DC |
| Operating Temperature Range | −20°C to +50°C |
| Heat Exchanger Material | Ceramic (washable, no replacement needed) |
| Filters | HEPA + Activated Carbon (replaceable) |
| Duct Diameter | 160mm (exterior tube: 163mm) |
| Duct Length | 250 – 500mm (telescopic, can be cut to fit) |
| Wall Thickness Compatibility | 200 – 450mm |
| Interior Cover Dimensions | 242 × 242mm |
| Fan Speeds | 4 (Sleep / I / II / III) |
| Ventilation Modes | 3 — Fresh Air In / Exhaust Out / 65-second Auto Cycle |
| Certifications | CE, RED, SAA |
| Warranty | 36 months |
Speed-by-Speed Breakdown
| Mode | Power (W) | Current (A) | Airflow (m³/h) | RPM | Best For |
|---|---|---|---|---|---|
| Sleep | 2.5 | 0.025 | 20 | 630 | Night-time bedroom ventilation |
| Speed I | 3.0 | 0.030 | 48 | 1,100 | Standard daytime use |
| Speed II | 4.5 | 0.045 | 54 | 1,600 | Cooking / showering periods |
| Speed III | 8.5 | 0.070 | 60 | 2,200 | Rapid air exchange |
Annual electricity cost at continuous Speed I operation:
3.0W × 24h × 365 days = 26.3 kWh/year ≈ €7.90/year (at €0.30/kWh EU average)
Filtration System
| Filter Layer | Function | Maintenance |
|---|---|---|
| HEPA filter | Captures fine particles: pollen, dust, PM2.5 | Replace every 3 – 6 months depending on local air quality |
| Activated Carbon filter | Absorbs odours, VOCs, traffic exhaust fumes | Replace every 3 – 6 months |
| Ceramic heat exchanger core | Thermal energy recovery between airflows | Washable — rinse with water, air dry. No replacement required. |
Filter replacement is tool-free. Remove the interior cover, slide out old filters, slide in new ones. Under 2 minutes.
Installation Requirements
What you need:
- One 160mm core drill hole through an exterior wall
- Standard electrical outlet within cable reach
- Wall thickness between 200mm and 450mm
What you don’t need:
- Ceiling voids or suspended ceilings
- Ductwork through the building
- Professional HVAC contractor (though professional installation is always recommended for masonry/concrete walls)
Installation Steps
text1. Core drill a 163mm hole through the exterior wall
(slight downward angle of 2-3° toward outside for condensate drainage)
2. Insert the telescopic duct tube (cut to match your wall thickness)
3. Secure the exterior weather grille
4. Mount the interior unit onto the wall bracket
5. Connect to power (standard plug — no hardwiring required)
6. Attach filters and interior cover
Typical installation time: 2 – 4 hours for one unit.
Note for renters: The 160mm wall penetration is the only structural modification required. Discuss with your landlord before installation.
Real-World Impact: What European Customers Experience
Scenario 1 — A Berlin Apartment in August:
A young couple lives in a top-floor apartment that becomes unbearably hot in summer. They installed a portable AC unit, but opening windows for fresh air at night lets in street noise and negates the cooling. After installing the VT501, they keep windows closed, run the AC less frequently, and wake up to fresh, cool air every morning. Their electricity bill dropped noticeably.
Scenario 2 — A London Terraced House:
A family with two children, one with asthma, struggled with summer pollen and poor air quality from a nearby road. Opening windows for ventilation triggered allergic reactions. The VT501’s filtration system now provides continuous clean air without exposure to outdoor allergens. The child’s symptoms improved significantly.
Certifications and Compliance
| Certification | Scope |
|---|---|
| CE | Confirms compliance with applicable EU directives for safety, health, and environmental protection |
| RED (Radio Equipment Directive 2014/53/EU) | Confirms WiFi model’s radio equipment compliance for legal operation within the EU |
Copies of CE and RED certificates are available upon request for specification projects, building inspections, or regulatory documentation.
Practical Energy Savings Estimate
Scenario: A 20m² bedroom in a Central European climate (e.g., Germany, Netherlands, Austria). Heating season approximately 200 days/year.
| Ventilation Method | Estimated Heat Loss per Season | Annual Heating Cost Impact |
|---|---|---|
| Opening windows 3× daily, 15 min each | ~1,200 kWh | ~€360 |
| VT501 continuous ventilation with 90% heat recovery | ~120 kWh | ~€36 |
| Difference | ~1,080 kWh saved | ~€324 saved |
Estimates based on typical residential heat loss calculations. Actual savings depend on building insulation, local climate, heating system type, and usage patterns.
At a purchase price of €450, the unit can pay for itself within approximately 1.5 heating seasons through reduced energy waste alone.
What’s Included in the Box
- 1 × VT501 interior unit with integrated fan and ceramic heat exchanger
- 1 × Telescopic wall duct (250 – 500mm, trimmable)
- 1 × Exterior weather protection grille
- 1 × HEPA filter (pre-installed)
- 1 × Activated carbon filter (pre-installed)
- 1 × Wall mounting bracket and hardware kit
- 1 × IR Remote control (Remote model) or WiFi module pre-configured (WiFi model)
- 1 × Power cable with plug (select EU/UK/AU/US at checkout)
- 1 × Installation and user manual (English)
Common Questions from European Customers
Does this meet EU ventilation regulations for residential buildings?
The VT501 is CE and RED certified. For specific national building regulations (e.g., German DIN 1946-6, Dutch Bouwbesluit, UK Building Regulations Part F), consult your local building authority or installer to confirm the VT501 meets the airflow requirements for your specific room size and building type. We provide all technical data needed for compliance verification.
Can I install this in a listed/heritage building?
The only external modification is a 163mm circular opening with a flush weather grille. This is significantly less invasive than ducted systems. However, listed building consent may still be required — check with your local planning authority.
What about condensation and rain ingress?
The duct is installed at a slight downward angle toward the exterior. The outer weather grille prevents rain entry. The ceramic core naturally manages moisture during the heat exchange cycle. In extremely cold conditions (below −10°C), the auto-cycle mode prevents ice formation on the ceramic core.
How loud is it really?
At Sleep mode: ≤30 dB(A). For reference, a quiet library is approximately 30 dB(A), and a whisper at 1 metre is approximately 20 dB(A). At Sleep speed, most users report that the unit is inaudible from bed at normal room distances.
How long do filters last?
Depends entirely on your local air quality. In a typical European urban environment, expect 3 – 6 months per filter set. Rural environments with clean air may extend this. The WiFi model can alert you when filters need attention.
Can I use this for cooling in summer?
The VT501 is not an air conditioning unit — it does not actively cool air. However, during summer, it recovers coolness from outgoing conditioned air (if you use AC) and pre-cools incoming air, reducing your AC workload. It also enables effective night purge ventilation — drawing in cool night air to pre-cool rooms before daytime heat.
Technical Support and After-Sales
- 36-month warranty covering manufacturing defects
- Replacement parts (filters, ceramic cores) available for direct order
- Technical support via email with response within 24 business hours
- Installation guidance available upon request for professional installers
Two Models — Choose What Fits Your Setup
VT501 Model Comparison
| Feature | VT501-Remote (Standard) | VT501-WiFi (Smart) |
| Control Method | Infrared Remote Control | Smartphone App + Remote Control |
| Connectivity | No Internet required (Offline) | Wi-Fi (Tuya App / iOS & Android) |
| Speed Selection | 4-Speed Manual | 4-Speed + Automated adjustment |
| Ventilation Modes | 3 Modes (Manual Switch) | 3 Modes + Programmable Logic |
| Smart Integration | None | Alexa & Google Home compatible |
| Air Quality Monitoring | None | Real-time CO₂ Monitoring |
| Automation | None | Schedules, Timers, & Auto-Speed |
| Hardware | Identical Ceramic Core & Filters | Identical Ceramic Core & Filters |
| Installation | Standard Wall-Mount | Standard Wall-Mount |
| Best For | Rentals, Elderly, Guest Rooms | Smart Homes, Offices, Nurseries |
Suitable for: smart homes, home offices, nurseries, or any room where you want automated air quality management。Both models are physically identical. Same filters. Same ceramic core. Same installation. The difference is the control board only.
Select your plug type at checkout: EU / UK / AU / US
Free shipping to all European destinations.
14-day returns — unused, in original packaging.