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  6. Heat exchange ventilation system (ducted and ductless)

Heat exchange ventilation system (ducted and ductless)

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Japan Stiebel LWZ Series / VLR-70

last updated:May 01, 2025

日本スティーベル
日本スティーベル
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An advanced ventilation system that demonstrates its power in high airtight and high insulation homes, significantly reducing utility costs, and is also "clean and safe," "easy," and "wallet-friendly."

Stiebel Eltron has been leading the global heat exchange ventilation market since it began manufacturing first-class heat exchange ventilation systems in 1991. We are committed to thorough product development focused on "efficiency" to offer proposals that combine "clean," "easy," and "energy-saving." We will propose suitable products based on living environments and other factors. Ducted 'LWZ Series' - Ensures ventilation with an effective ventilation rate of 99% (LWZ-130 series) - Uses a high-power, high-efficiency motor - Heat exchange rate of 90% - Demonstrates its power in high airtight and high insulation homes - Reduces running costs and initial costs - Complete heat exchange ventilation for bathrooms and toilets (in the case of sensible heat) - High-performance filter (optional) - Whole-house air conditioning systems can also be proposed Ductless 'VLR-70' - Easy installation that eliminates the hassle of setup - Durable, antibacterial aluminum heat exchange elements that can be washed - High-performance allergen-sweep F9 filter (optional) - Reduces heating and cooling costs by combining heat exchange and ventilation modes For more details, please download the catalog or feel free to contact us.

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IPROS換気システム画像ロゴ入り 製品ID2000264827.jpg

Heat exchange ventilation system (ducted and ductless)

IPROS換気システム画像ロゴ入り 製品ID2000264827.jpg
IPROS換気システム画像ロゴ入り 製品ID2000264827.jpg
  • Related Link - https://www.stiebel-eltron.co.jp/products/air_cond…

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basic information

It is said that 30% of heat loss in homes is due to ventilation. Heat exchange ventilation recovers heat from the dirty air expelled outdoors and brings the fresh outside air closer to room temperature before supplying it indoors, making it possible to reduce utility costs. The heat exchange efficiency is at the industry's highest level of 90%. This significantly reduces heat loss due to ventilation in homes and keeps indoor air clean and comfortable at all times. Please also check out our various product introduction videos. - Ducted ventilation user interview video: https://www.youtube.com/watch?v=2Jp8bPzfHlc - Ductless ventilation system "VLR-70" introduction video: https://www.youtube.com/watch?v=LFI6RlY3oNA - Ducted ventilation system "LWZ-130" introduction video: https://youtu.be/oD2IbkOfVZ4

Price range

P3

Delivery Time

Please contact us for details

Applications/Examples of results

It will demonstrate its effectiveness as a 24-hour ventilation system in high-performance homes, ZEH homes, and low-energy homes. In the elongated Japanese archipelago, where the climate varies significantly between the Pacific side and the Japan Sea side, the appropriate ventilation method also differs depending on the region and living style. At Japan Stiebel, we disclose the strengths and weaknesses of each ventilation method and offer a full lineup of industry-leading high-performance products (including total heat exchange, sensible heat exchange, ducted, and ductless systems) to maximize "simplicity," "efficiency," and "comfort."

Line up(4)

Model number overview
LWZ-280 / 280JE Duct type (wall-mounted type) LWZ-280 (sensible heat type) / LWZ-280JE (total heat type) Suitable for residential floor areas of approximately 270m2. A high air volume type. The heat exchange element of the total heat type can also be washed with water. With a built-in pre-heater, it maintains the planned ventilation volume and high heat exchange even during cold periods.
LWZ-170EPlus Duct type (wall-mounted type / sensible heat type) Suitable for residential floor areas of approximately 230m2. It features a bypass function for outdoor cooling operation and a built-in pre-heater, achieving energy savings and reliable ventilation year-round.
VLR-70 No duct piping required, ductless type directly mounted on the wall. It features excellent durability and antibacterial properties, using a washable aluminum heat exchange element. Comes with a high-performance allergen sweep F9 filter (excluding E series).
Others The above lineup is just an example. For more details, please contact us.

catalog(7)

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Ductless Heat Exchange Ventilation System Catalog

Ductless Heat Exchange Ventilation System Catalog

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Ducted and ductless heat exchange ventilation featured in the "Comprehensive Catalog of Ventilation Equipment."

Ducted and ductless heat exchange ventilation featured in the "Comprehensive Catalog of Ventilation Equipment."

CATALOG
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Central Air Conditioning System "Zentral Klima" Catalog

Central Air Conditioning System "Zentral Klima" Catalog

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[Flyer] High-Performance Heat Exchange Ventilation System for Residential and Non-Residential Use | Stiebel Eltron Japan Co., Ltd.

[Flyer] High-Performance Heat Exchange Ventilation System for Residential and Non-Residential Use | Stiebel Eltron Japan Co., Ltd.

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Japan Stiebel Co., Ltd. Company Profile

Japan Stiebel Co., Ltd. Company Profile

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Ductless heat exchange ventilation system VLR-70

Ductless heat exchange ventilation system VLR-70

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Ductless heat exchange ventilation system "VLR-70 series" allergen sweep F9 filter

Ductless heat exchange ventilation system "VLR-70 series" allergen sweep F9 filter

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News about this product(3)

Ontology

Ductless heat exchange ventilation system "VLR-70" new E series now available! Achieving the lowest price in the series!

  • Product news

The highly acclaimed ductless heat exchange ventilation system is adding a new model, the 'VLR-70 E Series.' Release date: Scheduled for April 25, 2024 Since the launch of the 'VLR-70' in December 2021, we have expanded the specifications and color lineup to accommodate a wider range of installation conditions, achieving a cumulative sales total of 100,000 units. Therefore, we have decided to release the 'VLR-70 E Series,' which maintains high performance while keeping costs down. [About the VLR-70 E Series] - Maximum heat exchange efficiency of 92% - A high air volume type with a maximum of 70㎥/h, capable of supporting four units per building (*) - Durable aluminum heat exchange elements that can be washed, keeping them clean for a long time - Color variations available to suit your preference: three colors for the indoor grill and four colors for the outdoor hood (*) Applicable for around 40 tsubo. It may vary depending on housing performance and layout. Please contact us for more details. The 'VLR-70' is available in a total of three series that can be selected based on budget and installation conditions. The VLR-70 E Series is a non-fireproof specification. For semi-fireproof, fireproof, or quasi-fireproof requirements, please consider the VLR-T Series or DF Series.

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Announcement of the New Showroom Opening and Headquarters Relocation: Completion of the Demonstration Area for Electric Water Heaters Contributing to Significant Cost Reduction with Energy-Saving Considerations.

  • Company news

Nihon Stiebel Co., Ltd. relocated its headquarters to Shinagawa, Tokyo on June 20, 2022, and opened a showroom. We believe that the best way to understand the performance of our products is to experience them firsthand. Therefore, we have established a showroom where many products can be continuously operated. In particular, the demonstration area for instantaneous electric water heaters is well-equipped, with all currently available series (note that some may not be prepared depending on the heater capacity) continuously operational. Visitors can directly experience not only the appearance and size of the equipment but also the flow rate and temperature during water discharge. We will also continue to exhibit both ducted and ductless heat exchange ventilation systems for residential use. In the ductless system, you can experience a high heat exchange rate through demonstrations using a hairdryer, and you can also directly check the maintenance features. Visits to the showroom are by appointment only (weekdays from 9:00 AM to 5:00 PM). If you are interested, please feel free to contact us via the link below.

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[Video Release] Two user interview videos for the ductless ventilation system are now available!

  • Product news

We have completed an interview video with clients and construction companies who have adopted Japan Stiebel's heat exchange ventilation system. Please check the video for customer feedback, including the reasons for their adoption and their impressions after using the system.

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日本スティーベル

日本スティーベル

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"How to enrich people's lives with less energy and greater efficiency." Stiebel is a comprehensive manufacturer of residential equipment, established in 1924 and headquartered in Holzminden, Germany. Starting with electric water heaters, heat pumps, ventilation systems, and storage heating systems, which have been manufactured since its inception, the company is now globally recognized as a leading company in passive houses and renewable energy systems. The Japan branch was established in 1986 and is located in Shinagawa, Tokyo, and also features a showroom. Since beginning the import and sale of European residential equipment, we have been dedicated to providing energy-saving products while always being conscious of creating a "comfortable" living environment. We are responsible for localization to Japanese specifications, as well as creating proposals for ventilation and heating.

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