- Finnex HMO Heater w/ Digital LCD Controller
Maintain temperature control to provide a safe and stable environment for your tank inhabitants with the Finnex HMO Titatium Digital Control Heater.
Digital accuracy within to +/-2°F keeps water temperatures at a constant level.
HMO-50: 50W – 10-20 Gallon tank
HMO-100: 100W – 20-30 Gallon tank
HMO-150: 150W – 30-60 Gallon tank
HMO-200: 200W – 60-80 Gallon tank
HMO-300: 300W – 80-100 Gallon tank
Good only if you use with Apex/Reefkeeper By Aquanaut on 2/19/2018Aquanaut would recommend this product to a friendThe heater part is well made, but as others have said the temp settings and readings are garbage. Mine reads 5 deg F higher than the tank. Without an external controller such as the Reefkeeper (what I use) or Apex I would not use this. With the controller it is good my temps are constantly 77.4-77.5
Do not buy this heater By Jim on 2/11/2018Jim wouldn't recommend this product to a friendI read the reviews and got 2 anyway. The temp probe is part of the heating element housing and it tries to "estimate" the temperature which in my case reads from 80-84 degrees when it is actually about 78. I don't mind it reading high but it wanders over 4 degrees with the water temp being consistent. I checked it with a recently purchased calibrated thermometer while mixing water in a trash can.
Using it with an Apex controller I had to set the temp at 85 for it to consistently stay on with the Apex programmed with 78.3 and 78.5 range.
The problem is the location of the temp probe (built in to the heater housing) and the "estimating" the heater does to try and read the temp of the surrounding water.
I really like the ViaAqua heaters, wish BRS carried them. I just replaced 2 in my tank, one for 3 1/2 years. I have purchased 2 new ones and the Finnex heaters are in the trash.
Not too happy with my purchase of HMO-200 Finnex Heater By Michael on 1/20/2018Michael wouldn't recommend this product to a friendI am NOT happy with my purchase, PLEASE believe the reviews about the heater, the controller is set at 82F and the water in a 30 gallon system is 78.6F. Purchase a Neo-Therm if you need something under 150w.
I am in the process of replacing the Finnex with a 150w Neo-Therm, personally I should have believed the reviews.
Calibration is non existant By Chris on 1/19/2018Chris wouldn't recommend this product to a friendI thought I was buying a good heater but I put my hand in the tank today and realized it's pretty cold so I set up three different thermometers in my tank and all three were reading in the 73 range while the heater was set at 78 and not even heating. I guess I'll have to boost it up to get all the thermometers reading 78. My poor livestock!
Inaccurate settings, bad product By Ben on 1/10/2018Ben wouldn't recommend this product to a friendThe thermometer for the heater is built into the body itself, so the heater cannot get accurate temperature readings of the tank. When it turns on and heats up, it reads the tank as warm and switches off again. It almost froze our 125 gallon reef. I've been through two with the same problem.
Bring back the old model with the separate temperature probe!
Finnnex 100 watt digital heater By Chuck on 12/15/2017Chuck would recommend this product to a friendI really like the digital part. I have had good luck with the heater so far. I have checked the temp. with another unit I trust and both register great.
At least 8 degrees off By Guy on 12/10/2017Guy wouldn't recommend this product to a friendAs with many reviewers here, I must set the heater much higher than the water temp needed. As it stands now I must set the Heater Temp at 89 degrees F to get a water temp of 78.5 +/- ...This is totally unacceptable. I have the 300 in a 29 gallon sump feeding a 75 gallon display.
Ordered 3 only 1 worked as it should. By Ryan on 12/8/2017Ryan wouldn't recommend this product to a friendI ordered 3 in total (counting returns). All were in high flow, would heat up, but only 1 was "accurate" on temperature. Meaning 2 of them would show wild swings in the supposed water temperature on the high side (10-16 degrees) whenever they turned on.
I tried facing in various directions, again in high flow to wisk away the heat) but they simply are not shielded enough to work without great concern of a tank not heating properly. Which as we speak is happening according to my Apex and I'm out of town.
No good... By Alex on 12/3/2017Alex wouldn't recommend this product to a friendI've used the 100W version of this heater for a few months only to wake up to the loud buzzing noise of the temp getting too low in my tank. Turns out the heater just stopped working all together? After 3 months? Not worth the risk.
Loved the idea of digital setting and LCD readout, but reliability comes first.
Good heater for the money By John on 11/28/2017John would recommend this product to a friendI have a 300W that has been running over a year. Temp reads low on the controller, but not a big deal. Seems to hold pretty steady as long as the heater is sized correctly for your system.
Good heater consistent temp By Evan on 11/26/2017Evan would recommend this product to a friendThis heater keeps my temp rock solid stable. but there is something that I would improve. That being that the cord from the heating element to the controller is too short to form a drip loop. This is fine for fresh water but when highly conductive salt water drips into the controller it causes shorts which I believe is the most common cause of death. It happened to me but I rinsed it in distilled water to remove all the salt, let it dry and then sealed the case with silicone and it was as good as new.
Horrible heater, worse customer service. By Jeffrey on 10/24/2017Jeffrey wouldn't recommend this product to a friendI purchased the 200W version of this heater solely to heat water in a mixing tank used exclusively for water changes. The water changes are 25 gallons, and 200W should be more than adequate to heat this volume. Out of the box, the heater needs to be cranked to 90 degrees in order to heat the water to 79. It takes it 24 hours to do so. If it is set to the appropriate temperature, (79), in 24 hours I have 70 degree water. On asking BRS if this is expected, I was referred to Finnex. On contacting Finnex I was required to send a pdf of the sales receipt--no other form of proof of sale or purchase was acceptable to them. After jumping through that hoop, they agreed to the return of the unit at my expense for them to examine and possibly repair or replace it. As the return postage will be nearly half the cost of a new unit, and more than the cost of a different unit from another manufacturer, I will just replace it. I wouldn't purchase another item manufactured by Finnex under any circumstances. And if I don't get some response from BRS, I will be finding a different vendor for my aquarium needs as well. For the record, I have a 150 gallon display plumbed with a 75 gallon sump and a 40 gallon frag tank, so the amount of money I've spent with BRS is not inconsiderable. Appalling
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The length is 7.8" you will need 9" of clearance to handle the cable from the top.
The 200w HMO heater is good for tanks around 60-80 gallons and two of them would be perfect for a 120 gallon tank. Thanks for the question and if you have any more just let us know.
The 100w model measures 6.6" long and would certainly fit in the Nuvo 20.
The 200 watt will be 11" long. Feel free to let us know if you have any further questions!
2x 300 watt heaters would be a perfect set up! Feel free to let us know if you have any further questions!
The Finnex heating tubes can be oriented in any direction.
The Finnex HMO 200 heater is approximately 10.5" long. Have a great day!
The HMO heaters can be mounted in any orientation and it shouldn't cause any issues.
Thanks for the question and if you have any more just let us know!
The Heater is 12" long exactly. However 13" clearance would be needed to fit with the chord coming out of the top of the heater. Feel free to let us know if you have any further questions!
The Finnex HMO heaters do have a grounded outlet plug.
You will need between 550-1000 Watts in your system. 2x 300 watt heaters would work well!
These are submersible and the cord from the wall to the controller is 4 feet and from the controller to the heater is 2 feet. Feel free to let us know if you have any further questions!
You can certainly select 2 heaters one which the controller set to a slightly lower temperature. For this size tank you will want 2.5-5 watts per gallon around 250 watt total. Here you could select 2 150 watt heaters to work well and place in the same section of the sump if needed!
Typically you will want between 2.5 watt to 5 watts per gallon. Ideally the 100 watt will work great with the 20 gallon tank. Feel free to let us know if you have any further questions!
You will want 100 watt heater for best performance. These will sit in the back no problem. Feel free to let us know if you have any further questions!
Lastly, what would you recommend for a 29 Gallon JBJ Nano Cube and would it fit in the back of the filter area?
For the initial set up 2x 300watt heaters would work out great! The controller is the part which turns on or off depending on temp in the water column. For a 29 gallon tank we recommend anywhere from 75-150 depending on room temperature. usually 75 watt is plenty. Feel free to let us know if you have any further questions!
For something like that you would be best served by an aquarium controller. The most basic of which is the Reef Keeper Lite unit and it will do both of those things as well as give you two more outlets you can use as timers or other functions.