# Ventilation heat recovery unit SpiroFlex Rekuperator pionowy VENT CLEAR VD3 LR Optimum (S)

**URL:** https://aio.lv/en/product--spiroflex-sx-rvd3lro--11833634
**Data updated:** 2026-03-09 14:45 (EET)
**Category:** Air purifiers
**Manufacturer:** SpiroFlex
**Manufacturer code:** SX-RVD3LRO
**EAN:** 5903661106478
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 1 821.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 1 505.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spiroflex-sx-rvd3lro--11833634

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

SpiroFlex Rekuperator pionowy VENT CLEAR VD3 LR Optimum (S) is a vertical ventilation heat recovery unit designed for mechanical supply and exhaust ventilation with heat recovery. The unit provides balanced air exchange while recovering heat from exhaust air to preheat incoming air. Suitable for residential or small commercial spaces requiring controlled ventilation and energy-efficient indoor air renewal.

## Long description

SpiroFlex Rekuperator pionowy VENT CLEAR VD3 LR Optimum (S) is a vertical heat recovery ventilation unit designed for mechanical supply and exhaust ventilation with heat recovery. The unit maintains balanced air exchange by extracting stale indoor air and supplying fresh outdoor air while transferring thermal energy from the extract stream to the supply stream. Its vertical layout and compact footprint make it suitable for installation in service shafts, utility rooms or small plant spaces in residential and light commercial buildings.
Advantages
The unit recovers heat from exhaust air to reduce heating demand and improve overall energy efficiency. It operates with balanced supply and extract airflow to maintain indoor air quality and humidity control. The vertical configuration allows for flexible placement in confined spaces and simplifies duct routing. The design supports continuous operation with reduced noise and low energy consumption when paired with appropriately sized fans and controls.
Suitable for
Residential apartments and houses requiring controlled ventilation
Small offices and commercial premises with limited plant space
Renovation projects where a compact vertical unit is preferred
Buildings seeking to improve energy efficiency and indoor air quality
Key specifications
Configuration: vertical heat recovery ventilation unit
Function: balanced mechanical supply and exhaust with heat recovery
Installation location: indoor, in service shafts, utility rooms or dedicated plant cupboards
Airflow direction: separate supply and extract air streams with heat exchange between them
Intended use: residential and small commercial spaces
Acoustic performance: designed for low operational noise when installed correctly
Energy performance: reduces heating load by transferring heat from exhaust to supply air
How to use
Install the unit vertically according to the manufacturer’s installation instructions, ensuring adequate access for servicing and filter replacement. Connect separate supply and extract ductwork, and provide outdoor air and extract discharge routes following local building regulations. Commission the unit with appropriate fan speeds and controls to match the required ventilation rates for the served rooms. Regularly check and replace filters, inspect the heat exchanger for cleanliness, and verify airflow and controls during periodic maintenance.
Usage recommendations
The unit is best operated with a planned maintenance schedule that includes filter changes and periodic inspection of the heat exchanger and fans. Use appropriate controls and setpoints to balance indoor air quality, energy use, and acoustic comfort. Ensure ductwork and installation follow local codes and the manufacturer's guidelines to achieve optimal heat recovery and long-term reliable operation.

## Specifications

### Power

| Feature | Value |
|---|---|
| Energy efficiency class | A |

## FAQ

### How much does the Heat recovery unit SpiroFlex VENT CLEAR VD3 LR cost, and is it available for purchase?

The price is 1,821.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can Heat recovery unit SpiroFlex VENT CLEAR VD3 LR be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SpiroFlex products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SpiroFlex service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Heat recovery unit SpiroFlex VENT CLEAR VD3 LR?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11833634/67234102_large.webp