---
product_id: 674091967
title: "Vaillant Boiler Auto Air Vent (AAV) 104521"
brand: "hts"
price: "29530CFA"
currency: XOF
in_stock: true
reviews_count: 2
category: "Hts"
url: https://www.desertcart.sn/products/674091967-vaillant-boiler-auto-air-vent-aav-104521
store_origin: SN
region: Senegal
---

# Boosts heating efficiency Perfect Vaillant fit Auto air removal tech Vaillant Boiler Auto Air Vent (AAV) 104521

**Brand:** hts
**Price:** 29530CFA
**Availability:** ✅ In Stock

## Summary

> 🔥 Keep your heat flowing flawlessly with the Vaillant Auto Air Vent!

## Quick Answers

- **What is this?** Vaillant Boiler Auto Air Vent (AAV) 104521 by hts
- **How much does it cost?** 29530CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/674091967-vaillant-boiler-auto-air-vent-aav-104521)

## Best For

- hts enthusiasts

## Why This Product

- Trusted hts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium materials for durable, long-term performance you can trust.
- • **Energy-Smart Efficiency:** Maintains optimal pressure and flow, reducing energy waste and heating costs.
- • **Hassle-Free Installation:** Designed for quick, professional or savvy DIY installation with zero fuss.
- • **Seamless Airlock Prevention:** Automatically vents trapped air to keep your heating system flawless.
- • **Tailored for Vaillant Boilers:** Engineered for a perfect fit and reliable operation with your Vaillant unit.

## Overview

The Vaillant Boiler Auto Air Vent (AAV) 104521 is a precision-engineered component that automatically removes trapped air from Vaillant heating systems, preventing airlocks and maintaining optimal pressure. Its durable construction and easy installation ensure long-lasting, efficient boiler performance, backed by a 12-month warranty for peace of mind.

## Description

HTS - Vaillant Boiler Auto Air Vent (AAV) 104521 Ensure smooth and efficient operation of your Vaillant boiler with the HTS Auto Air Vent (AAV), part number 104521. This essential component automatically removes trapped air from your system, preventing airlocks that can disrupt performance and lead to potential system failures.

Review: Good price but over boxed - Good price but it came with a cigar box sized container & enough padding to line my loft with.
Review: Fine - Fine

## Features

- Automatic Air Removal: Designed to automatically vent air from the heating system, preventing airlocks and maintaining optimal pressure and flow.
- Compatibility: Specifically designed for Vaillant boilers, ensuring a perfect fit and reliable operation.
- Improved Efficiency: Helps maintain efficient boiler function by ensuring that the system remains air-free, which can improve heating performance and reduce energy consumption.
- Durable Construction: Made from high-quality materials to withstand constant operation, ensuring long-lasting performance.
- Easy to Install: Simple to install by professional technicians or experienced DIY users, ensuring a hassle-free replacement.
- 12-Month Warranty: Comes with a 12-month warranty, providing peace of mind regarding product quality and durability.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DM6MWHV8 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 163,564 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,306 in Central Heating System Accessories |
| Colour | Multicolour |
| Customer Reviews | 4.6 4.6 out of 5 stars (9) |
| Date First Available | 6 Nov. 2024 |
| Included Components | Accessories if provided |
| Item Weight | 100 g |
| Item model number | (AAV) 104521 |
| Manufacturer | HTS |
| Part Number | 87145000810 |
| Product Dimensions | 10 x 10 x 10 cm; 100 g |

## Images

![Vaillant Boiler Auto Air Vent (AAV) 104521 - Image 1](https://m.media-amazon.com/images/I/51LWteCzkdL.jpg)
![Vaillant Boiler Auto Air Vent (AAV) 104521 - Image 2](https://m.media-amazon.com/images/I/51eO4xf5eGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good price but over boxed
*by D***. on 19 March 2026*

Good price but it came with a cigar box sized container & enough padding to line my loft with.

### ⭐⭐⭐⭐⭐ Fine
*by J***N on 12 December 2025*

Fine

## Frequently Bought Together

- HTS - Vaillant Boiler Auto Air Vent (AAV) 104521
- Vaillant ECOTEC PRO 24 28 Water Pressure Sensor 253595
- HTS Boiler PRV Compatible with Vaillant ECOTEC Plus VUW 824 831 837 Boiler Pressure Relief Safety Valve 178985

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**Shop now:** [https://www.desertcart.sn/products/674091967-vaillant-boiler-auto-air-vent-aav-104521](https://www.desertcart.sn/products/674091967-vaillant-boiler-auto-air-vent-aav-104521)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-21*