Ideal Clima Kers+50 Ultra-Quiet Heat Recovery Ventilator – Fresh Air and Maximum Energy Savings
Quiet and Smart Ventilation for the Modern Home
The Ideal Clima Kers+50 is an ultra-quiet local heat recovery ventilator that helps ensure clean and fresh indoor air without excessive heat loss. The unit is ideal for apartments, single-family homes, bedrooms, and offices that lack central ventilation or where users wish to improve the existing indoor climate. Heat recovery efficiency reaches up to 97%.
In today’s well-insulated buildings, problems such as the following often arise:
- poor ventilation
- high CO2 levels
- humidity and condensation
- stuffy indoor air
- mold growth
- significant heat loss through the window during ventilation
Ideal Clima Kers+50 helps solve these problems with an energy-efficient, quiet, and easy-to-install solution.
Why Choose Ideal Clima Kers+50?
- Heat recovery of up to 97%
- Very quiet operation for everyday use
- Airflow up to 50 m³/h
- Energy-efficient EC motor
- Wi-Fi readiness
- Remote control included
- Automatic operation based on humidity and CO2 levels
- Ceramic Antibacterial Heat Exchanger
- G3 filters in both airflow directions
- Easy installation through an exterior wall
- Suitable for renovation projects
- Europe’s Most Efficient Local Ventilation Solution
Problem: Poor ventilation and excessive humidity
Modern airtight buildings do keep the heat in, but ventilation is often insufficient. As a result, the following may occur:
- rise in humidity
- mold to form
- windows to fog up
- the air becomes heavy
- decrease in sleep quality
- increased fatigue and headaches
Simply opening a window is not an energy-efficient solution in winter, because a large amount of heat escapes.
Solution: Local ventilation with heat recovery
The Ideal Clima Kers+50 uses regenerative heat recovery technology, in which the heat from the exhaust air is stored in a ceramic heat exchanger and transferred to the incoming fresh air.
The result is:
- fresher indoor air
- lower heating costs
- better indoor climate
- less moisture and mold
- Energy-efficient ventilation year-round
Ultra-quiet operation in the bedroom and living areas
The Ideal Clima Kers+50 is designed to operate very quietly, making it well-suited for:
- into the bedrooms
- children’s rooms
- home offices
- into living spaces
Automatic nighttime speed reduction helps ensure quiet operation even at night.
Smart Wi-Fi Control
KERS+50 supports Wi-Fi control, and you can monitor and adjust the device’s settings via your smartphone. In addition, the remote control allows you to adjust the airflow without connecting any cables.
Smart features allow you to:
- adjust the ventilation speed
- monitor the device’s operation
- use automatic modes
- control multiple devices at once
Ceramic Antibacterial Heat Exchanger
Kers+50 uses a ceramic heat exchanger with an antibacterial coating, which helps:
- increase the efficiency of heat recovery
- improve hygiene
- reduce the spread of bacteria
- ensure stable ventilation
Easy installation
The unit is installed through an exterior wall and does not require a complex ventilation duct system. This makes the Kers+50 particularly suitable for:
- into apartments
- buildings undergoing renovation
- into smaller rooms
- into existing residential buildings
Where is the Ideal Clima Kers+50 heat recovery unit used?
The Ideal Clima Kers+50 is well suited for:
- into apartments
- private homes
- into the bedrooms
- to offices
- home offices
- for smaller commercial spaces
- buildings undergoing renovation
- rooms without central ventilation
Technical Specifications
- Maximum airflow: 50 m³/h
- Heat recovery: up to 97%
- Ceramic Antibacterial Heat Exchanger
- EC Energy-Efficient Fan
- WiFi Ready
- G3 filters on both sides
- Automatic Night Mode
- Humidity, Temperature, and CO2-Based Control
- Wind-resistant exterior roller shutter in accordance with the EN 13141-8 standard
FAQ – Frequently Asked Questions
What is Ideal Clima Kers+50?
Kers+50 is a local heat-recovery ventilation unit, or heat exchanger, that helps ensure fresh indoor air and reduce heat loss.
Is the Kers+50 suitable for an apartment?
Yes, the unit is ideal for apartments and rooms without central ventilation.
How effective is heat recovery?
Heat recovery efficiency reaches up to 97%.
Does the device help reduce humidity?
Yes, continuous ventilation helps reduce excess moisture, condensation, and the risk of mold growth.
Can the device be controlled with a phone?
Yes, Kers+50 supports Wi-Fi control via a smartphone.
How quiet is the device?
The Kers+50 is designed for ultra-quiet operation and is well-suited for bedrooms and living spaces.
Is installation difficult?
No, the unit is installed through an exterior wall and does not require a complex ventilation duct system.
Does Kers+50 help save on heating costs?
Yes, heat recovery helps reduce heat loss caused by ventilation and improve energy efficiency.
All equipment that complies with European directives is marked with the CE mark (TÜV) and comes with the corresponding certificate of conformity.
Specifications
VRKS27W – KERS+ 25 Precision Heat Recovery Unit with Remote Control
A spot heat recovery unit for installation within perimeter walls, featuring a high-efficiency hexagonal ceramic heat exchanger capable of handling a maximum airflow rate of 50 m³/h, alternating between supply and exhaust modes, with a useful internal volume of up to 50 m³. Equipped with an automatic airlock damper in accordance with Regulation CE13141-8, a night mode (nighttime noise reduction), and a humidity control function. Sound pressure level at a distance of 3 m is less than 29 dB in accordance with the UNI EN ISO 3746:1997 standard; external noise attenuation is 42 dB; features an energy-efficient EC motor with power consumption of less than 4.3 W. A remote control is included, and Wi-Fi capability is standard.
KERS+ devices are designed to perform the following functions in every room:
- Supply fresh air taken from outside the building at a flow rate of up to 50 m³/h
- Recover up to 97% of the heat from the stale air extracted from rooms to heat (in winter) or cool (in summer) the incoming air before it enters the room, resulting in significant energy savings.
- Filter the incoming air and the air being extracted from the rooms.
The maximum airflow rate for each unit is available in four sizes: 25, 50, 60, and 100 m³/h, depending on the model. KERS+ heat recovery units ensure adequate air exchange for rooms with floor areas of 9, 18, 22, and 37 m², depending on the model (with an air exchange rate of 0.5 vol/h and an interior height of 2.7 m).
Ideal Clima Kers+ Local Ventilation Unit with Heat Recovery
The machine is equipped with an EC motor fan with energy recovery, which is capable of reversing the airflow in the recovery unit and operates in two phases:
Stage 1:
The fan draws hot air from the room and sends it through the heat recovery unit to the outside. This cools the air while retaining the heat it contains.
Stage 2:
The fan reverses the airflow and draws in cool air from outside. When this air comes into contact with the heat recovery unit, it is warmed before entering the room.
The remote control included as standard equipment allows you to:
- Use Kers+ only in extraction mode or only in input mode.
- Adjust the fan speed according to the desired humidity level.
- Setting up automatic night dimming
- Set up automatic ventilation based on three humidity thresholds
- To quickly remove unpleasant odors, activate the boosted suction function at maximum speed for 30 minutes.
- Turn Kers+ on and off.
Using the device’s buttons, you can:
- Set three operating speeds
- Configuring heat recovery and activating automatic nighttime dimming
- Displays operating speed and the need to clean the filters using LEDs
To install the recovery unit, drill a through-hole in the perimeter wall for KERS+ 25/50/60/100 Wi-Fi-ready devices, with a minimum diameter of 102/162/162/202 mm, at a 2° or 3° angle outward. The channel can be adjusted according to the actual thickness of the wall. All that is required is a 110–230 Vac power source using a 2×1.5 mm² cable. Control is via the device’s retractable buttons, the remote control included in the package, a free remote control adapter, or Wi-Fi.
Price: 44 euros + km
Technical Specifications
| Description | KERS+ 25 Precision Regenerative Brake with remote control |
KERS+ 50 Precision Regenerator with remote control |
KERS+ 60 Precision Regenerative Brake with remote control |
KERS+ 100 Precision Regenerative Brake with remote control |
|
| Code | VRKS27W | VRKS52W | VRKS60W | VRKS00W | |
| Airflow at maximum speed | m/h | 25 | 50 | 60 | 100 |
| Ventilation | m/h | 12.5 | 25 | 30 | 50 |
| Efficiency of a Ceramic Heat Recovery Unit | % | up to 97% | up to 97% | up to 94% | up to 94% |
| Temperature of the treated air | °C | -20 / +40 | -20 / +40 | -20 / +40 | -20 / +40 |
| Thermal energy recovered during the summer | 65 | 148 | 160 | 280 | |
| Temperature of the treated air | °C | -20 / +50 | -20 / +50 | -20 / +50 | -20 / +50 |
| Electrical energy absorbed at maximum speed | 3.35 | 4.97 | 4.8 | 10.5 | |
| Electric current absorbed at maximum speed | UNTIL | 0,016 | 0,024 | 0,022 | 0,05 |
| Built-in filters | – | 2 | 2 | 2 | 2 |
| Filter Class EN 779 | – | G3 | G3 | G3 | G3 |
| Connection | V/phase/ Hz |
230/1/50 | 230/1/50 | 230/1/50 | 230/1/50 |
| Diameter of the hole in the wall | mm | 102 | 162 | 162 | 202 |
| Minimum wall thickness | cm | 28 | 28 | 28 | 28 |
| Defense | – | IPX4 | IPX4 | IPX4 | IPX4 |
Kersi Flow Rate and Noise Table – The Quietest Device on the Market
| SPEED | Description | one | KERS+ 25 (VRKS27W) |
KERS+ 50 (VRKS52W) |
KERS+ 60 (VRKS60W) |
KERS+ 100 (VRKS00W) |
| Maximum | Airflow velocity | m³/h | 25 | 50 | 60 | 100 |
| Effective replacement current rate | m³/h | 12.5 | 25 | 30 | 50 | |
| Sound pressure at a distance of 3 m | dB(A) | 28,5 | 25.8 | 26.4 | 29.2 | |
| Average | Airflow velocity | m³/h | 17,5 | 35 | 42 | 70 |
| Effective replacement current rate | m³/h | 8.7 | 17,5 | 21 | 35 | |
| Sound pressure at a distance of 3 m | dB(A) | 19 | 16,5 | 16,5 | 20 | |
| Minimum | Airflow velocity | m³/h | 9 | 19 | 22 | 50 |
| Effective replacement current rate | m³/h | 4.5 | 9.5 | 11 | 25 | |
| Sound pressure at a distance of 3 m | dB(A) | 7.8 | 7.6 | 7.6 | 15 | |
| Superminimum | Airflow velocity | m³/h | 7 | 12 | 16 | 40 |
| Effective replacement current rate | m³/h | 3.5 | 6 | 8 | 20 | |
| Sound pressure at a distance of 3 m | dB(A) | 4 | 4 | 5 | 11 | |
| Acoustic attenuation of external noise with the fan turned off | dB(A) | 44 | 42 | 42 | 40 | |
| Calculating Noise as a Point Source in Free Space (Q = 1) | ||||||
Data for Energy Labeling Purposes
| Brand | The ideal climate | The ideal climate | The ideal climate | The ideal climate | |
| Model | VRKS27W | VRKS52W | VRKS60W | VRKS00W | |
| Specific Energy Consumption (SEC) | kWh/m²/year | Cold -82.7 Temperate zone -40.8 Hot -16.8 |
Cold -85.1 Temperate zone -42.2 Hot -16.6 |
Cold -84.3 Temperate zone -41.8 Hot -17.5 |
Cold -84.9 Temperate zone -41.4 Hot -16.5 |
| Type of Ventilation System | Two-way | Two-way | Two-way | Two-way | |
| Type of Installed Drive | How many speeds? | How many speeds? | How many speeds? | How many speeds? | |
| Type of Heat Recovery System | Recovery | Recovery | Recovery | Recovery | |
| Efficiency Δt at 13°C | % | 75% | 80% | 78% | 83% |
| Maximum capacity | m³/h | 25 | 50 | 60 | 100 |
| Absorbed electrical energy | 3.35 | 4.3 | 5 | 10.5 | |
| Maximum sound level | dB(A) | 42 | 40 | 42 | 44 |
| Reference flow rate | m³/s | 0,0047 | 0,0097 | 0,0117 | 0,0195 |
| Difference in reference pressure | Well | 0 | 0 | 0 | 0 |
| Specific Input Power (SPI) | W/(m³/h) | 0,15 | 0,13 | 0,13 | 0,15 |
| Type of inspection | Local Environmental Monitoring | Local Environmental Monitoring | Local Environmental Monitoring | Local Environmental Monitoring | |
| Maximum internal leakage | % | 1,5% | 1,5% | 1,5% | 1,5% |
| Maximum external leakage | % | 0% | 0% | 0% | 0% |
| Mixing speed of bidirectional units | % | 1% | 1% | 1% | 1% |
| Airflow sensitivity at ±20 Pa | m³/h | 0,41 | 0,55 | 0,55 | 0,55 |
| Internal/External Air Tightness | m³/h | 0,49 | 0,6 | 0,6 | 0,6 |
| Web address | www.idealclima.eu | www.idealclima.eu | www.idealclima.eu | www.idealclima.eu | |
| Annual Electricity Consumption (AEC) | kWh of electricity/year | 1.22 | 1.06 | 1.06 | 0,15 |
| Annual Heating Savings (AHS) | kWh of primary energy per square meter per year | Cold 85.7 Temperate 43.8 Hot 19.8 |
Cold 87.8 Temperate 44.9 Hot 20 |
Cold 87.8 Temperate 44.4 Hot 19.9 |
Cold 86.1 Temperate 44.4 Hot 19.9 |
