# HAPPET aquarium heater AQUAT 25W – submersible heater for small tanks, 25 W power

**URL:** https://aio.lv/en/product--happet-011225--12018909
**Data updated:** 2026-03-11 20:54 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** HAPPET
**Manufacturer code:** 011225
**EAN:** 5907708618672
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--happet-011225--12018909

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

HAPPET AQUAT 25W is a submersible aquarium heater designed for small freshwater or tropical tanks. With 25 W power it maintains stable water temperature suitable for fish and plants, fitting compact setups and nano aquaria. The heater is intended for continuous use, provides even heat distribution and is mounted inside the tank to support aquarium climate control.

## Long description

HAPPET AQUAT 25W is a submersible aquarium heater designed for small freshwater and tropical tanks. With 25 W of heating power it provides stable temperature control appropriate for small setups and nano aquaria. The compact, fully submerged design allows even heat distribution throughout the water column and simple in-tank mounting to support continuous climate control for fish and aquatic plants.
Advantages
The heater's low power rating and compact form factor make it suitable for tanks where precise, gentle warming is required. Being submersible ensures direct contact with water for efficient heat transfer and even temperature distribution. The AQUAT 25W is built for continuous operation and fits into limited spaces without obstructing tank decoration or filtration. Its design reduces thermal gradients and helps maintain a consistent environment for aquatic life.
Suitable for
 Small freshwater aquariums and nano tanks
 Tropical fish tanks requiring mild temperature increase
 Breeding or quarantine tanks with limited volume
 Planted aquaria where stable temperatures benefit plant growth
Key specifications
 Power: 25 W
 Type: Submersible heater for in-tank mounting
 Intended use: Continuous operation for small-volume aquaria
 Compatibility: Freshwater and tropical aquarium setups
 Design: Compact form factor for space-constrained tanks
How to use
Install the heater fully submerged in the aquarium, positioning it near low-flow areas or adjacent to a filter outflow to promote even heat distribution. Secure the unit to the glass using the provided mounting method and connect to power following all safety instructions. Allow the heater to run continuously to maintain a stable temperature and monitor water temperature with a separate aquarium thermometer. Avoid switching the heater on or off while out of water and do not operate if the glass housing is damaged.
Usage recommendations
Place a reliable thermometer opposite the heater to verify uniform temperature and choose a heater power appropriate for your tank volume; 25 W suits small and nano aquaria. Perform regular checks for damage, ensure continuous submersion during operation, and follow general aquarium safety guidelines for electrical devices near water.

## FAQ

### How much does the HAPPET AQUAT 25W aquarium heater cost, and is it available for purchase?

The price is 15.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 14.07.2026 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 HAPPET 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 HAPPET 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/12018909/67507379_large.webp