---
product_id: 209941117
title: "Tetra 26447 Submersible Aquarium Heater, 50-Watt"
price: "570 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt
store_origin: DK
region: Denmark
---

# 50-Watt power for efficient heating Submersible design for full underwater use Auto thermostat keeps water steady at 78°F Tetra 26447 Submersible Aquarium Heater, 50-Watt

**Price:** 570 kr
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your tank perfectly cozy — because your fish deserve the best!

## Quick Answers

- **What is this?** Tetra 26447 Submersible Aquarium Heater, 50-Watt
- **How much does it cost?** 570 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Compatibility:** Perfectly sized for aquariums from 2 to 30 gallons
- • **Energy Efficient Heating:** 50-watt power balances performance with low energy use
- • **Trusted American Quality:** Crafted by Tetra in the USA for reliable, long-lasting use
- • **Durable Submersible Build:** Fully waterproof for safe, continuous underwater operation
- • **Precision Temperature Control:** Maintains a stable 78°F environment for your aquatic friends

## Overview

The Tetra 26447 Submersible Aquarium Heater delivers precise, energy-efficient heating with its 50-watt power and automatic thermostat, maintaining a constant 78°F in aquariums from 2 to 30 gallons. Its fully submersible design ensures safe, reliable underwater use, all backed by trusted American manufacturing.

## Description

Tetra 26447 Submersible Aquarium Heater, 50-Watt : desertcart.in: Pet Supplies

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Tetra |
| Country of Origin | USA |
| Item model number | 26447 |
| Product Dimensions | 13.34 x 4.11 x 8.89 cm; 222.26 g |
| ASIN | B000OQO69Q |

## Images

![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 1](https://m.media-amazon.com/images/I/61IvRyE83GL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 2](https://m.media-amazon.com/images/I/61fJ4zrsYaL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 3](https://m.media-amazon.com/images/I/71CH35bZjVL.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 4](https://m.media-amazon.com/images/I/71NRbk83Y-L.jpg)
![Tetra 26447 Submersible Aquarium Heater, 50-Watt - Image 5](https://m.media-amazon.com/images/I/71Z+wOA2cqL.jpg)

## Questions & Answers

**Q: would this work in a one gallon tank?**
A: I wouldnt because the temp on this can go up to 79 degrees in a 10 gallon tank, for that reason i purchased a 10 watt for my 1 gallon tank and it keeps the tank at a perfect temp of 78. Check out the Marina C10 Submersible on Amazon for $10.00.

**Q: Description says "the ht30 is adjustable between 72 degrees f and 85 degrees f". ok, why does the one i received say not adjustable, preset at 78?**
A: All of the HT Heaters are preset now.  Unfortunately, this is an old image and old description of the former HT 55. The description seems to have been translated to the HT 100 as well. Tetra is working to correct these issues immediately. We appreciate your bringing it to our attention.  If you need any other assistance, please contact the Tetra Consumer Relations Team at 1-800-526-0650.

**Q: Will this be okay in a 3 gallon betta bowl i'm making? if not any recomendations?**
A: Yea i think so. I seriously look at this every day and im sooooooooooo glad i bought it. My betta looked so depressed before in his bowl because my house gets down to 60 degrees and his water was getting cold and now he is so happy his water stays 78 and he swims like a happy fish and has a lot of  bubbles on top (means there happy). Its so crazy that warmer* water can make a fish soooo happy. This is a must. Yes buy it for a 3 gallon tank- i think it will work just fine and your fish will LOVE IT i promise! Let me know how it works out for you- because im so glad i got it!

**Q: Does it turns off automatically**
A: When it reaches the right temp. it automatically shuts off. When the light on it is green, it's heating; when the light is red, it's off

## Frequently Bought Together

- Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt, 2-10 Gallon
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- Tetra Water Cleaner Gravel Siphon for Aquariums, Easily Clean Freshwater Aquariums

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**Shop now:** [https://www.desertcart.dk/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt](https://www.desertcart.dk/products/209941117-tetra-26447-submersible-aquarium-heater-50-watt)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-08*