JBL ProTemp e

JBL ProTemp e

  • External heater for aquariums
  • Adaptors for various hoses are included
  • Available in two variations for different aquarium sizes
  • With a digital temperature display
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Description

The JBL ProTemp e is an external heater for aquariums. It is attached with a hose between the external filter and the filter outlet and thus heats the aquarium to the desired temperature.

Due to the possibility of shifting the temperature control of the tank so that it is located outside the aquarium, you can minimize the technology in the tank and nothing disturbs the perception of a carefully designed aquascape or nature aquarium.

Manual ProTemp e - - download PDF

Features

      
  • Outdoor heating element available with 300 or 500 watts
  •   
  • Connection pieces for 12/16, 16/22 and 19/25 mm hoses included
  •   
  • Available in two variations for different aquarium sizes
  •  
  • Easy to read thanks to the digital display

Note

The heater should only be used in pools of the size specified by the manufacturer. Otherwise, overheating cannot be ruled out in smaller pools.

Dimensions

JBL - ProTemp e - 300
Hight 23,5 cm
Length 9 cm
Width 8 cm
Suitable for aquariums 90 - 300 l
JBL - ProTemp e - 500
Hight 29,5 cm
Length 9 cm
width 8 cm
Suitable for aquariums 160 - 600 l

Technical specifications

JBL - ProTemp e - 300
Power 300 W
Voltage 240 V
JBL - ProTemp e - 500
Power 500 W
Voltage 240 V

Product safety

General notes:

  • Follow the operating instructions.

JBL

JBL

JBL is a traditional German company with a very wide range of products for aquarists. From high-quality fish and shrimp food to external filters and water plant fertiliser, JBL offers a wide selection for aquarium enthusiasts.

JBL's research and development constantly brings new, innovative products onto the market. Whether aquascape, fish aquarium, shrimp tank with a scurry factor or a pure water plant aquarium in Holland style, JBL offers suitable aids for set-up and maintenance for all these directions.

Manufacturer information

Manufacturer
Name JBL GmbH & Co. KG
Street Dieselstraße 3
City 67141 Neuhofen
State Rheinland-Pfalz
Country Deutschland
Website www.jbl.de

General information

Item no.
EAN
Weight
Shipping weight

Questions and answers about JBL - ProTemp e

You have questions about this product? Ask other customer or our support team about this product!

Can the heater be installed in the cold water hose during a water change to warm the fresh water running into the aquarium a bit?
Translated from German
Brigitte S.
Jan. 2024
Aquasabi Support
Feb. 2024
The JBL ProTemp e does not heat the water fast enough to have any effect on fast-flowing water. Installing the heater in the cold water hose is therefore not efficient.
Translated from German
Helpful!
Does the heater have to be installed vertically, or can it also be mounted horizontally on the tank? The tank is only 30 cm tall.
Translated from German
Uwe R.
May. 2024
Verena Lutze
May. 2024
According to the instruction manual, the JBL ProTemp e should be positioned vertically or slightly tilted if possible.
Translated from German
Helpful!
Can the heater also be used on smaller aquariums? As I understand it, it switches off as soon as it reaches the target temperature. So the fairly high output of 300 watts isn't a big problem, is it?
Translated from German
Paul P.
Aug. 2025
Lisa Pogodda
Sep. 2025
Support
The aquarium to be heated should not be smaller than the manufacturer intends and specifies. The automatic shut-off when the water temperature is reached cannot happen instantly, so unfortunately overheating cannot be ruled out in a small tank volume.
Translated from German
Helpful!

Customer reviews

This item has been rated 4.5 out of 5 stars
22 Reviews
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5 Stars(17)
4 Stars(2)
3 Stars(2)
2 Stars(0)
1 Star(1)
Sven B.
JBL quality
11th January 2025
JBL - ProTemp e - 300
JBL - ProTemp e - 300

This is the best way to turn a normal external filter into something close to a thermo filter. I've had the external heater running for a while now and have to say it does what... (read more)

Translated from German
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JBL Qualität

Dies ist die beste Variante einen normalen Aussenfilter zu einem annähernden Thermofilter zu machen. Ich habe den Aussenheizer nun schon länger in Betrieb und muss sagen, er macht das wofür er gebaut wurde sehr gut und zuverlässig.

Die Einstellung sowie die Montage sind kinderleicht.

Durch die mitgelieferten Adapter passt er auch auf alle gängigen Schlauchgrößen.

Ich habe den Heizer nun schon 2 mal da ich ihn auch an meinem 60U verwenden werde.

Auch ein Lob an Aquasabi für die schnelle Lieferung.

Markus N.
Perfect
22nd February 2024
JBL - ProTemp e - 300
JBL - ProTemp e - 300

It works flawlessly and is very quiet. I think the price is great, considering the tank is so much cleaner. Never again without it!

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Perfekt

Er funktionier tadellos und ist sehr leise. Den Preis finde ich super, dafür dass das BEcken viel cleaner ist. Nie wieder ohne!

Gunnar S.
Perfect heater!
28th November 2023
JBL - ProTemp e - 500
JBL - ProTemp e - 500

Very easy to install and does what it's supposed to do! I like the nice look without a heating rod!

Translated from German
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Perfekte Heizung!

Sehr einfach zu installieren und mach was sie soll! Ich mag die schöne Optik ohne Heizstab!

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