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
Quick Compare - Finnex Deluxe Titanium Heating Tubes
|Model||Amperage @ 115V||Recommended Tank Size (Gallons)||Powder Cord to Wall||Heating 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.
Good so far By Ryan W on 1/25/2018Ryan W would recommend this product to a friendReplacement for several old glass heaters with internal thermostats which fail often. Purchased three of the 300w units - two are in the tank (55 gal), working as a primary and back-up using an Apex controller along with a Ranco digital temperature control. The third heather is on the shelf as a spare, just in case. This works well given the heater price and the time/money/effort invested in the marine tank.
Great Heater could use a longer cord By Matthew on 12/31/2017Matthew would recommend this product to a friendI have two of the 500w heaters running off my Neptune Apex (remember you do need some sort of controller with these). The heaters have been rock solid, no issues. I do agree with other comments where the cord could be longer, but otherwise great heaters. I have been running for approximately 10 months.
300W NO PROBLEMS AS OF YET By Bob on 12/29/2017Bob would recommend this product to a friendNeeded something short to go in the sump but higher wattage than a 100W. Works well with my DYI temperature controller. This and a 100W auxiliary are maintaining an 80 gal DT and a 25 gal sump in a passive solar house that can get down to the low 60s over night. Keeps the water at 78.5 to 79.5.
Good Heater By BigHildy53 on 12/17/2017BigHildy53 would recommend this product to a friendGood heater, no issues. I do wish the power cord was longer.
No problems as of yet By Zach on 12/7/2017Zach would recommend this product to a friendThe finnex heaters work incredibly well with a controller, and keep your systems temp very stable.
800W is a beast of a heater By John on 11/28/2017John would recommend this product to a friendI bought 2 800W heaters for my 350gal system. Only need 1 to maintain temp, the other is setup as a backup if it fails. Using a reefkeeper to control them off of 2 separate power bars in order to not overload controller.
Finnex reports that the 800W draws 9amps, which didn't add up to me. My kill-a-watt reads that 1 draws 6 amps when on.
50/50 so far By Joseph on 11/25/2017Joseph wouldn't recommend this product to a friendHave two of these so far, one of them started leaking current within 1 week of use, the other is still operating fine. Comes with the plastic guard and suction cups.
Great heater and so easy to use. By Brian on 9/20/2017Brian would recommend this product to a friendI 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 9/2/2017Ryan wouldn't recommend this product to a friendI 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 8/25/2017vapor160 would recommend this product to a friendworks 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 7/21/2017vapor160 would recommend this product to a friendbest 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 7/17/2017Danny would recommend this product to a friendSolid heater so far (3 months in). I manage mine with a reef keeper lite and it works flawlessly at maintaining my temp.
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Special Price: $764.99
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!
Thank you for reaching out.
The outside diameter of the plastic guard is 1.13 inches.
Please let us know if you have any other questions.
Have a great day!
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.
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!
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!
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?
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!