Finnex TH Deluxe Titanium Heating Element with Plastic Guard

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Quick Overview

Titanium heating tubes are virtually unbreakable, and corrosion resistant allowing the use in salt or freshwater aquariums. The titanium housing will resist damage a traditional heater would normally encounter while also providing another level of protection with the use of a plastic guard which helps keep other pieces of equipment and livestock from coming in direct contact with the heating tube.


The Finnex TH series of heating tubes do not come with any type of temperature control. We suggest a simple heater controller like the Cobalt Neo-stat, or our preferred heater controller is a ReefKeeper Lite Controller. Any temperature control device will work, the heaters only require a grounded outlet to plug into.


Three Sizes Available:


300W Deluxe – 40-80 Gallon tanks


500W Deluxe – 70-130 Gallon tanks


800W Deluxe – 140-265 Gallon tanks

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  • Quick Overview

Titanium heating tubes are virtually unbreakable, and corrosion resistant allowing the use in salt or freshwater aquariums. The titanium housing will resist damage a traditional heater would normally encounter while also providing another level of protection with the use of a plastic guard which helps keep other pieces of equipment and livestock from coming in direct contact with the heating tube.

The Finnex TH series of heating tubes do not come with any type of temperature control. We suggest a simple heater controller like the Cobalt Neo-stat, or our preferred heater controller is a ReefKeeper Lite Controller. Any temperature control device will work, the heaters only require a grounded outlet to plug into.

Three Sizes Available:

300W Deluxe – 40-80 Gallon tanks

500W Deluxe – 70-130 Gallon tanks

800W Deluxe – 140-265 Gallon tanks

Finnex TH Deluxe Titanium Heating Element with Plastic Guard

81% Recommend this to a friend (13 of 16)

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300 Watt TH Heating Element
SKU: 209869

reg. $38.99

Special Price: $33.14

 
 
500 Watt TH Heating Element
SKU: 209870

reg. $45.99

Special Price: $39.09

 
 
800 Watt TH Heating Element
SKU: 209871

reg. $52.99

Special Price: $45.04

 

Full Details

 

Quick Compare - Finnex Deluxe Titanium Heating Tubes

ModelAmperage @ 115VRecommended Tank Size (Gallons)Powder Cord to WallHeating Tube
TH-300 300W 2.7 A 40-80 74" 10"
TH-500 500W 4.5 A 70-130 73.5" 14"
TH-800 800W 9 A 140-265 73" 16.5"

 

  • Resists corrosion
  • Virtually unbreakable
  • Fast heating
  • Requires heating controller to operate


Requires Separate Temperature Controller - We suggest either the Cobalt Neo-Stat, or the ReefKeeper Lite Controller if you do not already have a temperature controlling device.

Reviews

Items 1 to 12 of 16 total

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  • Great heater and so easy to use. By Brian on 9/20/2017

    I bought this heater for my Reefer 350 and hooked it up to my Apex and placed it in my sump. It turns on/off when it is supposed to and my temp is always between 78-79. It fits perfectly in my sump horizontally and since it is titanium I don't worry about breakage. Perfect.
  • heater was putting electrical current in my water By Ryan on 9/2/2017

    I purchased a finnex 800 watt titanium heater I noticed an electrical current in my water coming from the heater so I replaced it with a brand new 800 watt finnex titanium heater TH-0800S Plus with the same result. I have tried using different heater controllers and also plugged it directly into the wall outlet and I get the same electrical current with the new heater. I changed heater brands and no electrical current in my water.
  • Finnex 800 Watt TH Heating Element By vapor160 on 8/25/2017

    works great. these are my favorite as they are durable and accurate. I attached all my heaters to my new apex and now the temp stays within .02 degrees.
  • Finnex TH Deluxe Titanium Heating Element By vapor160 on 7/21/2017

    best heaters I use. paired it with my apex system so now the tanks stay steady within .2 degrees.
  • Solid product - No issues By Danny on 7/17/2017

    Solid heater so far (3 months in). I manage mine with a reef keeper lite and it works flawlessly at maintaining my temp.
  • Excellent heater By Sherman on 7/13/2017

    Ive had 2 800w on my reef tank hooked up to my reefkeeper. They are the best heater ive own by far. Took about 30mins to heat up my 375gal.
  • Plastic guard traps air By John on 7/3/2017

    I have been running the heaters for 2 weeks now. The heater was located in my sump before the skimmer section. During this time microbubbles from the sump managed to get trapped under the plastic guard forming larger bubbles. Once these bubbles grew large enough they came in contact with the surface of the heater removing the heat transfer ability. This caused sections of the heater to overheat resulting in surface damage. If left for long enough this would have led to complete heater failure and exposure of heating element to water. I would recommend using this product without the plastic guard.
  • CAUGHT FIRE By Dana on 5/28/2017

    The title says it all. Worked beautifully for about two months, until tonight. Doing routine sump maintenance and the heater was partially exposed to air. Bad. Idea. Took less than 60 sec to achieve total meltdown. Thank the Flying Spaghetti Monster that this happened while I was working on the tank and not while I wasn't home or sleeping. It could have a home detstroying event....
  • Finnex TH Deluxe Titanium Heating Element with Plastic Guard By vapor160 on 4/11/2017

    I love these heaters. Paired with My Apex controller they keep my system exactly where I need it to keep it
  • Works Great By Chad on 3/3/2017

    I have the 300W heater now. It is working flawlessly hooked up to my Apex. I will be getting the larger ones for future builds. Only flaw is a short cable. Even just an extra 6 inches would make it more practical.
  • Heats quickly and keeps up By TOM on 1/25/2017

    I recently swapped in the 500W Finnex heater in my 120g mixed reef system. It's been able to keep up easily even with a near 20 degree F night time winter temperature differential. Works great with my Vertex Cerebra controller and is able to keep the temperature within 1 degree F. I'm extremely happy with this unit as it easily outperforms the cheaper heaters on the market.
  • Great Heater By Patrick on 1/22/2017

    I have used the standard glass heaters for a long time. They always tend to crack, leak or the temp is always screwed up. This is a rock solid heater. I hooked it to my apex and it turns on and off when I need it and the temp is accurate within .5 a degree of turning on and off. The guard is nice and keeps things away that might get heated up. Very happy with it and has been going strong for 6 months.

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Product Questions

I am heating a 125 gallon aquarium controlled by an apex system. Would you guys recommend the 500w or 800w? Also I could not find anywhere that stated whether or not this heater is full submersible?
Question by: Jon Bates on May 19, 2016 10:58:00 PM
Great question! I would recommend the 800watt, and they are fully submersible.
Answer by: Carter (Admin) on May 24, 2016 11:51:00 AM
Would this be safe to use in an acrylic sump?
Question by: Andrew on Mar 16, 2016 7:58:00 AM
Great question!
When used in conjunction with a temp controller or aquarium controller this will work great! Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 16, 2016 11:23:00 AM
Is there any kind of indicator on the heater itself, to visually show when it is on or off?
Question by: Fawn on Jul 16, 2016 1:30:00 PM
Hi Fawn,
The Titanium Heating Tubes do not actually have any status indicator on the heaters or the electrical cord. If you wanted to have an indicator light, you could share the outlet that the heater is plugged into with a small LED light to indicate that it is on.
Answer by: Charlie (Admin) on Jul 18, 2016 8:45:00 AM
I have only 12 inches in my sump for a heater and my water volume is around 150 gallons. Would using 2 300watt heaters work? I will have them connected to my Apex.
Question by: Jack Carpenter on Apr 13, 2016 9:31:00 PM
Great question!
Two of the 300 watt heaters will work great on a 150 gallon tank at the minimum wattage for heaters. Controlling with the apex will help the heaters to run at the correct temperature. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 19, 2016 10:22:00 AM
I already have the 300W heater and think it is great. I am upgrading to a 120 gallon tank with ~250 gallons total system volume. If I purchase another heater, should I have them plugged into an extension cord and run that to a single Apex outlet, or should they be run to separate outlets for redundancy's sake? I have never ran two heaters at once. Would a backup heater be required if I have two heaters?
Question by: Mark on Nov 17, 2017 4:59:00 PM
We recommend using separate outlets on a controller for a dual heater set-up. I personally like to program one to turn on at say 78 degrees, and then the second one at 77.8 and then the first heater would turn off at 78.4 and the second heater at 78.3. That way it will help keep the power from spiking and also the single heater will generally heat the vast majority of the tank and the second will be more of a backup. That method also helps keep the temp from swinging dramatically.
Answer by: Charlie (Admin) on Nov 18, 2017 8:03:00 AM
I have a 90 gallon do I need to go with the 500W?
Question by: Jeremy on Jan 6, 2017 11:59:00 PM
Great question! A 300W heater is rated for a tank of 100gal or less, however the ambient temperature in your room will affect it's ability to maintain a higher temp. Honestly, if you have the space for a 500W heater I would purchase it. :-)
Answer by: Randy (Admin) on Jan 11, 2017 12:59:00 PM
Does the whole heater have to be completely under water? I have about 8 inches of space but could angle it a bit. The problem is if for some reason my ato fails or runs out of water some of the heater might be left in the air...

Thanks
Question by: Joshua Huggins on Jan 25, 2017 9:42:00 AM
Great question! You could feel comfortable with about 1" of the heater being exposed to air, but if it becomes completely exposed, it could overheat the element and damage the heater. :-)
Answer by: Randy (Admin) on Jan 28, 2017 10:32:00 AM
If connecting two 300w heaters to the reef keeper lite, would they both plug into the same controlled outlet via a 2-to-1 adapter or would they each take up their own controlled outlet on the controller?
Question by: David Danis on May 24, 2016 10:18:00 PM
Great question! This should work just fine.
Answer by: Carter (Admin) on May 26, 2016 11:52:00 AM
i have a 300 gallon which do i use.
Question by: roberto on Nov 20, 2016 2:35:00 PM
Great question! We recommend 2.5watts/gallon, which would be about 750w for you tank. I would recommend the 800w heater and possibly another one for backup redundancy. :-)
Answer by: Randy (Admin) on Nov 21, 2016 6:51:00 PM
How would I hook the 500watt heater to the apex?
Question by: ramon rivera on Mar 24, 2016 3:02:00 PM
Great question!
You can plug the heater into outlet 4 or 8 for perfect control. The temp probe can be assigned to the outlet and turn the heater on and off. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 24, 2016 3:57:00 PM
I am heating 240 gallon salt water fish tank + 40 gallon sump controlled by apex which heater do you recommend and where should I place the heater in main tank or in the sump?
Question by: Gabriel Katz on Oct 5, 2016 11:00:00 AM
Great question! We recommend 2.5W per gallon for proper heater sizing. That would be approximately 650W of heater for your setup. You may need more than one or two heaters. Really anywhere you put the heaters in the water column is fine. I wouldn't recommend putting the heaters in the same chamber as your Apex temp probe. :-)
Answer by: Randy (Admin) on Oct 14, 2016 10:31:00 AM
I've several of these, in various sizes, with external controller. They all develop a light-brown, crusty coating on the bottom over the course of several months. This coating is hard and doesn't seem to want to come off. The units still work, but how do I clean them to prevent this from hurting the heaters, if the deposits get worse? Can I sand it off? Can I use some vinegar or stronger acid or base? Can I scrape them?

I'd say a contributing factor is that the manufacturer says to lay them on the bottom horizontally...it is in this position that it's close to whatever I have on the bottom, which may not help. Must these be horizontal on the bottom?

Thanks,

Larry
Question by: Larry on Nov 12, 2016 2:04:00 AM
Hey there,
This crusty buildup you describe sounds like a precipitate which often does form around heaters. Due to the direct proximity to the heater, particularly at the point where it is near the bottom, this increases precipitation of the minerals in the saltwater, and this can often be seen on other heater types as well. To remove this, a 50/50 mix of white vinegar in a bath for 30-60 minutes will generally dissolve the buildup and allow you to get it cleaned up and back in like-new condition!
Answer by: Zack (Admin) on Nov 14, 2016 4:38:00 PM