# Automatic Air Vent kfa² 1/2" model 838-100-15 for heating and plumbing systems

**URL:** https://aio.lv/en/product--kfa-838-100-15--11699812
**Data updated:** 2026-03-08 08:45 (EET)
**Category:** Heating Radiators
**Manufacturer:** kfa²
**Manufacturer code:** 838-100-15
**EAN:** 5907571831390
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kfa-838-100-15--11699812

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.99 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Automatic air vent kfa² 1/2" (model 838-100-15) is a threaded vent for removing trapped air from heating, radiator and plumbing circuits. Designed for continuous automatic deaeration, it fits standard 1/2" connections and prevents air blockages that reduce system efficiency. Suitable for use on radiators, boiler connections, manifolds and closed-loop heating installations.

## Long description

Automatic Air Vent kfa² 1/2" model 838-100-15 is a threaded vent designed to remove trapped air from heating, radiator and plumbing circuits. Intended for continuous automatic deaeration, it connects to standard 1/2" fittings and helps maintain hydraulic efficiency by releasing air pockets that can cause noise, uneven heating or flow restriction. The device is suitable for installation on radiators, boiler connections, manifolds and closed-loop heating systems where reliable air elimination is required.
Advantages
The automatic air vent provides uninterrupted automatic venting without manual intervention, reducing the need for routine bleeding. Its threaded 1/2" connection ensures compatibility with common heating and plumbing fittings. The compact design enables installation in tight spaces near radiators, manifolds or boiler flanges, while materials and construction are intended to withstand the operating conditions of central heating systems. By maintaining a deaerated circuit, the vent contributes to quieter operation and improved heat transfer efficiency.
Suitable for
Radiator connections in residential and commercial heating systems
Boiler connections and near-pump suction lines
Manifolds and distribution headers in underfloor heating and multi-zone systems
Closed-loop hydronic heating circuits where automatic air removal is needed
Key specifications
Connection type: threaded 1/2" suitable for standard fittings
Function: continuous automatic air venting for heating and plumbing circuits
Typical installation location: radiators, manifolds, boiler ports and headers
Design feature: compact body for installation in confined spaces
Operating purpose: prevents air-induced flow restriction, noise and uneven heat distribution
How to use
Install the automatic air vent on a vertical port with the vent outlet facing upward to allow air to rise and escape. Use appropriate sealing (such as PTFE tape) on the threaded connection and tighten to manufacturer-recommended torque to avoid leaks. After installation, run the heating system and allow normal circulation; the vent will automatically discharge trapped air. Periodically check the unit visually for leaks and proper operation, and replace the vent if corrosion or mechanical damage is observed.
Usage recommendations
For reliable operation, install the vent in accessible locations to allow visual inspection and occasional replacement. Ensure the system is filled and pressurized according to heating system guidelines, and avoid orienting the vent horizontally. If repeated air accumulation occurs, inspect the system for leaks, improper filling or areas that collect air, and consider adding additional vents at high points.

## FAQ

### How much does the Automatic air vent kfa² 1/2" 838-100-15 cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 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 13.07.2026 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. All transactions are 100% secure and encrypted.

### 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 kfa² 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 kfa² 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

## Image

https://aio.lv/img/cache/product/11699812/67083055_large.webp