# Heat recovery unit SpiroFlex Rekuperator VENT CLEAR HD3 HR Comfort 350 m3/h

**URL:** https://aio.lv/en/product--spiroflex-sx-rhd3hrc--11833461
**Data updated:** 2026-03-09 14:45 (EET)
**Category:** Air purifiers
**Manufacturer:** SpiroFlex
**Manufacturer code:** SX-RHD3HRC
**EAN:** 5903661102159
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 2 137.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 1 766.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--spiroflex-sx-rhd3hrc--11833461

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 4.99 EUR |

## Summary description

Horizontal heat recovery unit (rekuperator) SpiroFlex VENT CLEAR HD3 HR Comfort with nominal air flow 350 m³/h. Designed for ventilation heat recovery, it combines supply and exhaust air streams to recover thermal energy and improve indoor air quality. Suitable for residential and light commercial applications where continuous balanced ventilation with energy savings is required.

## Long description

The SpiroFlex Rekuperator VENT CLEAR HD3 HR Comfort 350 m3/h is a horizontal heat recovery ventilation unit designed to provide continuous balanced airflow while recovering thermal energy from exhaust air. Engineered for residential and light commercial spaces, this rekuperator supports improved indoor air quality and reduced heating and cooling loads by transferring heat between outgoing and incoming air streams. The unit is intended for fixed installation in ventilation ducts where a nominal air flow of 350 m³/h is required.
Advantages
The compact horizontal design allows flexible placement in ceilings, attics or mechanical rooms where space is limited. The counterflow heat exchanger maximizes thermal recovery efficiency while maintaining low pressure drop, which helps reduce fan energy consumption. Corrosion-resistant construction and accessible maintenance panels simplify cleaning and service. The unit operates with balanced supply and exhaust flows to maintain neutral indoor pressure and reduce drafts.
Suitable for
Residential apartments and single-family homes requiring continuous ventilation with heat recovery
Small offices and light commercial premises seeking energy-efficient ventilation
Renovation projects where compact horizontal units must fit into existing ductwork
Key specifications
Nominal air flow: 350 m³/h (balanced supply and exhaust)
Configuration: horizontal heat recovery unit
Heat exchanger type: counterflow (plate/core type for heat transfer)
Application: mechanical supply and exhaust ventilation with heat recovery
Access: service panels for maintenance and filter replacement
How to use
Install the unit in-line with ductwork following local ventilation standards and manufacturer mounting instructions. Connect the supply and exhaust ducts to the corresponding spigots, ensure correct orientation of the heat exchanger for horizontal airflow, and provide electrical connection to the unit’s fans and controls. Fit recommended air filters before commissioning and adjust fan speeds or built-in controls to achieve the target balanced flow of approximately 350 m³/h. Verify airflow and check for leaks after installation.
Usage recommendations
Regularly inspect and replace filters according to operating conditions; clean the heat exchanger and service panels at least annually. Maintain clear access around the unit for airflow and servicing. Use compatible ductwork and airtight connections to preserve recovery efficiency and prevent cross-contamination between supply and exhaust streams.

## Specifications

### Power

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

## FAQ

### How much does the Heat recovery unit SpiroFlex VENT CLEAR HD3 HR Comfort cost, and is it available for purchase?

The price is 2,137.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 07.07.2026 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 HD3 HR Comfort 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 HD3 HR Comfort?

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/11833461/67233968_large.webp