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Home » Saltwater Aquarium Supplies  » Heaters  » Glass Tube  »  Eheim Jager TruTemp 300 Watt Fully Submersible UL Approved Heater
Eheim Jager TruTemp 300 Watt Fully Submersible UL Approved Heater

Eheim Jager TruTemp 300 Watt Fully Submersible UL Approved Heater

Average Rating 4.5 173
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Eheim Jager TruTemp 300 Watt Fully Submersible UL Approved Heater Information


Product Manuals & Documentation

Fully Submersible, Fully Waterproof and UL Certified Heater suitable for both fresh and salt water aquarium set ups featuring TrueTemp technology
  • TruTemp dial with readjustment ring allows the user to calibrate the heater for a precise temperature reading
  • Thermo safety control - enables running dry protection; heater will shut off when out of water
  • Made of shatter-proof glass
  • Precise temperature regulation
  • Extra long cable of 5`6"
  • Includes clamp with 2 suction cups
  • Simple and safe recalibration (+/- 2 degrees)
Made in Germany - For Fresh and Saltwater

Tank Size Power Needed Heater Length
7–16 gallons 50 watt 9"
16–26 gallons 75 watt 10.2"
26–40 gallons 100 watt 12.2"
40–53 gallons 125 watt 12.2"
53–79 gallons 150 watt 13.4"
79–106 gallons 200 watt 15.7"
106–159 gallons 250 watt 17.3"
159-264 gallons 300 watt 19.6"





Manufacturer Info

JAGER
In 2002, JAGER joined the EHEIM Aquaristik-Gruppe (EHEIM aquaria group) and in 2004, the new generation of adjustable heaters were presented.

Eheim Jager TruTemp 300 Watt Fully Submersible UL Approved Heater Reviews



Average Rating
(173 reviews)
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Excellent heaters

by
Reviewers Rating Excellent!


Posted: 1/6/2016 from LONG BEACH, CA UNITED STATES
5.0 5
Experience Level: Expert


Comments: I have used these Eheim Jager heaters now for 4 years. I find they work well and are reliable. Easy to use and not expensive. I good buy. Also, easy to calibrate if need arises.


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Great

by
Reviewers Rating Excellent!


Posted: 12/15/2015 from CRETE, NE
5.0 5
Experience Level: Intermediate


Comments: Filled my tank in the evening out of the outside faucet, with the weather at 35 degrees... by the next morning this heater had the water to 75 degrees and has worked spot on since. I believe this is a great heater.


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Eheim JaJager tru-temp heater

by
Reviewers Rating Excellent!


Posted: 12/11/2015 from AJAX, CANADA
5.0 5
Experience Level: Intermediate


Comments: When I first opened the box the quality of the heater was apparent. It was well packed ready to go. The temperature settings were easily read and the heater was easily installed in the tank secured by the twu suction cups. I have not had to do anything with the heater since installation which says alot about the product qquality. I would definately recommend this heater to my friends


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Heater

by
Reviewers Rating Excellent!


Posted: 11/21/2015 from ESCONDIDO, CA UNITED STATES
4.5 5
Experience Level: Intermediate


Comments: This is perhaps 6 or 7th Eheim Heater I have used. Needed higher wattage than ones I have so the purchase. It generally tends to be bit more pricey, but very reliable and good product. Tried others but did not work as well.


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Eheim Jager TruTemp Fully Sub

by
Reviewers Rating Great


Posted: 11/21/2015 from HUNTINGTON BEACH, CA UNITED ST
4.0 5
Experience Level: Intermediate


Comments: Heater is solid.. I can see some people being confused about calibration.. i see lots of threads on it.. i knock a star for the instructions not telling the consumer how to revert back to factory setting calibration... i had to email them for how to set to factory settings. once calibrated, this thing is running great.. no complaints. From Ehiem: To reset the heater to factory setting, ensure that the red arrow is pointing at 79 Degrees and the back red pin is aligned with both the power cord and the blue/white pin. they sent pix as well.. cannot link here.


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Good heater for the $

by
Reviewers Rating Excellent!


Posted: 7/29/2015 from HAILEY, ID UNITED STATES
4.5 5
Experience Level: Expert


Comments: These are good heaters in general. I use one size up from the recommended. ie. for a 90g tank I would use the 250w instead of the 200w. *Thermostat works well, usually within +/- 1deg. *I replace these heaters after two years of service - that is when I typically see issues with the thermostats. I knocked .5 stars off because I have had issues with longevity, however; I don't mind spending ~$35.00 every few years.


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Eheim Jager 200w

by
Reviewers Rating Excellent!


Posted: 7/10/2015 from EL PASO, TX UNITED STATES
5.0 5
Experience Level: Beginner


Comments: Everything is fine so far , time will tell Really appreciate the speed of transaction. Online order to my house ... 4 days


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Great Product...

by
Reviewers Rating Excellent!


Posted: 5/30/2015 from BRUNSWICK, MD UNITED STATES
5.0 5
Experience Level: Intermediate


Comments: I have them in every tank I own. Some as long as 10 years...which is well worth the cost of the heater. Great service, great heater...just all around great transaction.


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Good overall heater

by
Reviewers Rating Great


Posted: 3/29/2015 from BOULDER CREEK, CA UNITED STATE
4.0 5
Experience Level: Intermediate


Comments: It's a decent heater and the thermal protection is a plus. The thermostat is not particularly precise. I put two of these in my q tank. One is turned down all the way to 75 F but it keeps turning on when the temp is still 79 F. The other heater is set at 77 and it rarely come on. It's probably best to have an aquacontroller run this thing. Another minor complaint is the rubber suction cups. Is it really that expensive to equip it with a magnetic holder?


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steady heat

by
Reviewers Rating Excellent!


Posted: 1/28/2015 from OTTAWA, CANADA
5.0 5
Experience Level: Intermediate


Comments: Extremely steady heating, holds my 54 gal reef with 25 gal sump at a perfect and steady temp, right down to .1 degree accuracy holding temp once set.


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