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Aqua One Thermosafe 50W High Quality Aquarium Heater

Our Price  £19.75
List Price  £30.99
Saving Of  36%
(Inc. 20% VAT)(£16.46 Exc. VAT)Earn 19 Loyalty Points

Part Number:  94122
Brand  Official Aqua One Spare
Range  Aquarium Heating


No stock, discontinued  

No stock, discontinued

Official Aqua One 50w Heater for aquariums up to 50 litres including AquaMode 300, AquaNano 25, AquaNano 30, AquaNano 36, AquaNano 40, AquaStart 320, AquaStart 320T, AquaStyle 126 and UFO 350 canister filters. Although Aqua One's Thermosafe heaters are ultra tough and reliable, it's always a really good idea to keep a spare.

50w Thermosafe Heater from Aqua One - (94122)

This is a high quality, original spec. replacement 50w Thermosafe Heater manufactured by Aqua One for use with any aquarium of up to 50 litres in capacity, including AquaMode 300, AquaNano 25, AquaNano 30, AquaNano 36, AquaNano 40, AquaStart 320, AquaStart 320T, AquaStyle 126 and UFO 350 aquarium models.

Robust & Reliable

Aqua One's Thermosafe Heaters are ultra tough, with the benefit of being thermal shock proof and manufactured from toughened glass for extra durability. This means should the heater be removed from the aquarium water without first cooling down, it won't shatter as is the case with the majority of conventional glass heaters.

Aqua One is all we do

Aqua One Thermosafe Heaters

As ever with an aquarium heater, it's best practice to only switch it on whilst fully submerged in your aquarium. The 50w Thermosafe Heater model is thermostatically controlled and easily adjustable to the exact temperature requirement of your aquarium, meaning that it is literally a "fit and forget" item. Don't worry if the heater appears to switch on and off whilst in use... this is perfectly normal.

3 Year Warranty

Aqua One's lengthy product guarantees are well known in the fishkeeping world, bringing complete peace of mind to aquarium keepers throughout the UK and beyond. Of course, Aqua One's 50w Heater also benefits from a 2+1 year warranty period, although this is seldom required as Aqua One Thermosafe Heaters are extremely safe and robust in use and failures are extremely rare.

Choosing your aquarium heater

Generally speaking heaters are a "fit and forget" item and once set can more or less be left to work on their own, without adjustment. Although fully adjustable Aqua One heaters are preset at 24 to 25 degrees celsius, which is ideal for most aquarium setups. All Aqua One heaters provide peace of mind for the fishkeeper with their ultra reliability and come with a 2+1 year guarantee for extra assurance.

Heater type

Aquariums up to





50w Thermosafe Heater50 litres22cm55w240v/50Hz1.8m
100w Thermosafe Heater100 litres28cm100w240v/50Hz1.8m
150w Thermosafe Heater150 litres28cm150w240v/50Hz1.8m
200w Thermosafe Heater200 litres39cm200w240v/50Hz1.8m
300w Thermosafe Heater300 litres39cm300w240v/50Hz1.8m

As a rule of thumb, you will need a heater that is equivalent in watts to the capacity of your tank in litres. For example, if you have a 100 litre tank you will need 100 watt heater. For larger tanks it's a good idea to use two smaller heaters that will provide the same combined output, but spread the heat more evenly through the aquarium.

Keep a spare heater

Whilst Aqua One Thermosafe Heaters are ultra reliable, with many thousands in circulation today, we still can't stress enough the importance of keeping a spare. Your aquarium inhabitants will start to suffer stress from to low a temperature far quicker than poor water quality and having a spare heater on hand will avoid unecessary suffering and discomfort to your livestock.

Need help?

If you have any questions regarding Aqua One's 50w Thermosafe Heater or are unsure of exactly which aquarium heater or filter spares you require, please do contact us. We are the UK's leading authority on all that is Aqua One.

* See all... Aqua One Heaters, heating spares and accessories

Aqua One is all we do

We are an authorised and approved Aqua One stockist

If you're looking to purchase a spare part, accessory or filter replacement for your Aqua One aquarium or Filter, you can be confident that you are purchasing a genuine and original Aqua One Spare Part, from an authorised and Approved Stockist. This means that you will ALWAYS get full product support and of course a full manufacturers warranty on all products

Buy Official Aqua One Spares

Every Aqua One aquarium or filter product purchased here at Aqua One Parts is a genuine, Aqua One branded spare part or accessory, designed specifically for use in your Aqua One setup.

We are UK's only Dedicated Aqua One Retailer

We are the only dedicated Aqua One retailer in the UK, servicing many thousands of Aqua One customers every year and if you're considering purchasing a 50w Thermosafe Heater from us, you can do so with complete confidence that we are the UK's largest and most experienced Aqua One stockist.

We'll beat any other online price for the - 50w Thermosafe Heater

Manufacturers Code: 94122

We constantly check the price of our Aqua One 50w Heater to ensure that we are the cheapest. However if you do find a cheaper price on the 50w Thermosafe Heater from another online retailer, we guarantee to beat them.

Please don't hesitate to contact us if you do find the 50w Heater cheaper elsewhere online, but do remember that delivery charges need to be taken into account also. Before we beat the price of the other supplier we will check to make sure that they are a registered UK business, paying taxes in the UK. The aquaone online retailer must also have the item in stock, ready for despatch.

Aqua One is all we do

* Prefer to call us on the telephone about the 50w Thermosafe Heater? Please contact us: 01530 229755

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