# Aquarium Heater HAPPET GRZAŁKA AQUAT 100W, submersible 100 W

**URL:** https://aio.lv/en/product--happet-011228--11592721
**Data updated:** 2026-03-10 09:09 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** HAPPET
**Manufacturer code:** 011228
**EAN:** 5907708618702
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 15.99 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 13.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--happet-011228--11592721

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

HAPPET GRZAŁKA AQUAT 100W is a submersible aquarium heater with 100 W power designed to maintain stable water temperature in freshwater and marine tanks. It suits small to medium aquariums, providing reliable heating for fish, plants and invertebrates. Compact design allows easy placement; use with a separate thermometer and follow manufacturer instructions for safe installation and maintenance.

## Long description

HAPPET GRZAŁKA AQUAT 100W is a submersible aquarium heater with 100 W power designed to maintain stable water temperature in freshwater and marine tanks. Compact and straightforward in design, this heater is intended for small to medium aquariums where consistent heating supports the wellbeing of fish, plants and invertebrates. The unit is intended for continuous immersion; use with a separate thermometer and follow safe-installation and maintenance guidance provided by the manufacturer.
Advantages
The heater delivers a steady 100 W of power suitable for maintaining target temperatures in appropriately sized tanks. Its submersible construction enables even heat distribution throughout the water column. The compact form factor allows flexible placement inside the aquarium and simplifies installation and concealment among decorations or plants. Designed for continuous operation, the device is compatible with both freshwater and marine setups when used according to safety instructions.
Suitable for
 Small to medium home aquariums
 Freshwater fish tanks requiring stable temperatures
 Marine aquariums with appropriate monitoring
 Planted aquariums where temperature stability benefits growth
Key specifications
 Power output: 100 W
 Type: submersible immersion heater
 Intended use: continuous aquarium heating
 Compatibility: suitable for freshwater and marine tanks when used with correct monitoring
 Design: compact tubular form for easy placement
How to use
Install the heater fully submerged according to the manufacturer’s mounting instructions and position it where water circulation can distribute warmth evenly. Use an independent aquarium thermometer to verify and monitor water temperature; adjust the heater placement or power as required for the specific aquarium size and stocking levels. Always disconnect the heater from power before removing it from the water and follow recommended maintenance steps to ensure reliable operation.
Usage recommendations
Place the heater near a flow area such as a filter outlet to promote uniform temperature, check temperature daily when establishing target conditions, and perform routine inspections for any signs of damage. Avoid operating the heater out of the water and follow safety instructions for use in saltwater aquaria, including regular cleaning to prevent salt buildup.

## FAQ

### How much does the HAPPET GRZAŁKA AQUAT 100W 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 — 7 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 08.07.2026 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/11592721/66704497_large.webp