# Heater Hagen Marina 100W, 22 cm immersion aquarium heater for freshwater and marine tanks

**URL:** https://aio.lv/en/product--hagen-ah-2338--12029707
**Data updated:** 2026-03-12 16:38 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** Hagen
**Manufacturer code:** AH-2338
**EAN:** 015561112338
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 24.49 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 20.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hagen-ah-2338--12029707

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

Hagen Marina 100W immersion aquarium heater, 22 cm length, designed to maintain stable water temperature in small to medium freshwater and marine tanks. Provides consistent heating suitable for tropical fish setups, planted aquariums, and marine nano tanks. Simple to mount inside the tank, compatible with heaters of similar power and intended for continuous aquarium use.

## Long description

The Hagen Marina 100W immersion aquarium heater is a 22 cm glass heater designed to maintain stable water temperature in small to medium freshwater and marine tanks. Its compact form factor and continuous-operation design provide consistent heating for tropical fish setups, planted aquariums and marine nano tanks. The heater is intended for permanent placement inside the aquarium and is compatible with other heaters of similar power when used to create redundancy or zoned temperature control.
Advantages
The heater delivers steady, reliable warming without complex controls, making it simple to integrate into existing aquarium systems. Its 22 cm immersion design fits most aquariums where a low-profile, fully submerged heater is required. Constructed for continuous use, the heater ensures temperature stability that supports fish health and plant growth in both freshwater and marine environments.
Suitable for
 Small to medium freshwater aquariums housing tropical fish
 Planted tanks requiring stable temperature for plant growth
 Marine nano tanks and small saltwater setups with temperature-sensitive species
 Backup or supplementary heating when paired with another heater of similar power
Key specifications
 Power: 100 W suitable for small to medium aquaria
 Length: 22 cm immersion-type glass heater for full submersion
 Application: Designed for both freshwater and marine tanks
 Operation: Continuous-use heater for stable temperature maintenance
How to use
Mount the heater inside the aquarium using the provided suction cups or mounting bracket, positioning it where water circulation will distribute heat evenly. Ensure the heater is fully submerged before powering on and allow the aquarium to reach the target temperature under observation. For best practice, combine with an aquarium thermometer to monitor water temperature and adjust placement if hot or cold spots are detected. Disconnect power and allow the unit to cool before removing it from water.
Usage recommendations
Use this 100W heater in aquariums within the recommended volume range for the wattage, and pair with an accurate thermometer. For marine or densely planted systems, consider redundant heating or a slightly higher monitoring frequency to maintain stable conditions. Avoid dry operation and protect the glass tube from strong impacts during installation and maintenance.

## FAQ

### How much does the Hagen Marina 100W 22 cm aquarium heater cost, and is it available for purchase?

The price is 24.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 20.07.2026 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 Hagen 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 Hagen 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/12029707/67517441_large.webp