Reef Central Online Community
Premium Aquatics

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > Sponsor Forums > Bulk Reef Supply
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 10/02/2016, 12:54 PM   #1
zensaiyan
Registered Member
 
Join Date: Mar 2005
Location: Somerville, MA
Posts: 621
Finnex HMX-S Heater w/ Digital LED Controller

greetings team BRS. i was wondering if you had an instruction manual for this heater. i have had one in use for about 3 weeks now, and it seems temperamental at best. for example, i set the unit at 80 degrees, go away, come back much later, and the unit is reporting that the tank is 80 degrees on the digital display. when I touch the water it is definitely not 80 degrees; the temperature is around the low 71 when i use a secondary thermometer. there are also other times the unit seems more reliable, and the digital display will read 80 with the secondary thermometer reading 78-79.

i am not sure if i just got a lemon or if the digital display pad is reading the set temp rather than the tank temp. i did not have any instruction manual in the heater box when i received it. i tried searching finnex's website, but i couldn't find an instruction manual there either. any advice would be appreciated! thank you very much for your help.


zensaiyan is offline   Reply With Quote
Old 10/03/2016, 02:06 PM   #2
RT_BRS
www.bulkreefsupply.com
 
RT_BRS's Avatar
 
Join Date: Dec 2014
Posts: 989
Quote:
Originally Posted by zensaiyan View Post
greetings team BRS. i was wondering if you had an instruction manual for this heater. i have had one in use for about 3 weeks now, and it seems temperamental at best. for example, i set the unit at 80 degrees, go away, come back much later, and the unit is reporting that the tank is 80 degrees on the digital display. when I touch the water it is definitely not 80 degrees; the temperature is around the low 71 when i use a secondary thermometer. there are also other times the unit seems more reliable, and the digital display will read 80 with the secondary thermometer reading 78-79.

i am not sure if i just got a lemon or if the digital display pad is reading the set temp rather than the tank temp. i did not have any instruction manual in the heater box when i received it. i tried searching finnex's website, but i couldn't find an instruction manual there either. any advice would be appreciated! thank you very much for your help.
Hey there! This here is the manual that is included with the heater:


https://s3.amazonaws.com/brsinstruct...MXManual_A.pdf


It sounds like there may be an issue with that heater - measured temperature is displayed on that screen unless you are setting the desired temperature.

Give us a call at 763.432.9691 and we can help out.


RT_BRS is offline   Reply With Quote
Old 02/18/2017, 11:34 AM   #3
Salty150
Registered Member
 
Salty150's Avatar
 
Join Date: Feb 2015
Location: WI
Posts: 1,360
Looks like from the last 6 reviews of this heater - they all do the same thing...?


Salty150 is offline   Reply With Quote
Old 02/19/2017, 06:14 AM   #4
125mph
Registered Member
 
125mph's Avatar
 
Join Date: Apr 2011
Location: San Diego, CA
Posts: 1,425
Mine does the same....! I set it to 92'F and control it with Apex.


Sent from my iPhone using Tapatalk


__________________
180G Rimless Starphire 72x24x24 (Miracles)
3 x Ecotech XR15w G4 Pro | T5 x 4 | 2 x Mp40wQD
GEO 612 Cal Reactor | Vertex Omega 150 Skimmer | Chaeto Reactor
Synergy Reef CL44 Sump | Neptune Apex
125mph is offline   Reply With Quote
Old 02/20/2017, 11:02 AM   #5
valeriebrs
Registered Member
 
valeriebrs's Avatar
 
Join Date: Sep 2013
Location: Minneapolis
Posts: 275
After setting the temperature, are you getting this result after 48 hours of leaving it to adjust?


valeriebrs is offline   Reply With Quote
Old 02/21/2017, 02:25 PM   #6
125mph
Registered Member
 
125mph's Avatar
 
Join Date: Apr 2011
Location: San Diego, CA
Posts: 1,425
Quote:
Originally Posted by valeriebrs View Post
After setting the temperature, are you getting this result after 48 hours of leaving it to adjust?
Yep.. I was very excited initially getting the heater. I set it to 79' and have my apex controller to turn on at 77' and turn off at 78'. The heater stays on all the time because the water stays below 77'. However, checking the heater's digital reading shows it at 82' and so it wont active the heater. I moved it to various locations with high water turnover but has not worked.

Ended up just turning this thing on to full blast at 92' and also getting a fennix titianium heater, both controlled by APEX.

I think the temperature gauge in the heater is getting confused with the heat produced by the heater itself, which throws the gauge up.


__________________
180G Rimless Starphire 72x24x24 (Miracles)
3 x Ecotech XR15w G4 Pro | T5 x 4 | 2 x Mp40wQD
GEO 612 Cal Reactor | Vertex Omega 150 Skimmer | Chaeto Reactor
Synergy Reef CL44 Sump | Neptune Apex
125mph is offline   Reply With Quote
Old 02/21/2017, 04:48 PM   #7
Randy_BRS
Registered Member
 
Randy_BRS's Avatar
 
Join Date: Feb 2017
Posts: 175
Quote:
Originally Posted by 125mph View Post
Yep.. I was very excited initially getting the heater. I set it to 79' and have my apex controller to turn on at 77' and turn off at 78'. The heater stays on all the time because the water stays below 77'. However, checking the heater's digital reading shows it at 82' and so it wont active the heater. I moved it to various locations with high water turnover but has not worked.

Ended up just turning this thing on to full blast at 92' and also getting a fennix titianium heater, both controlled by APEX.

I think the temperature gauge in the heater is getting confused with the heat produced by the heater itself, which throws the gauge up.
It does sound like that is acting oddly. I can't say that I've experienced the same from my Finnex heaters.

If you could, please give us a quick call at 763.432.9691, and we should be able to get this issue sorted out.

-Randy


Randy_BRS is offline   Reply With Quote
Old 02/21/2017, 05:56 PM   #8
Salty150
Registered Member
 
Salty150's Avatar
 
Join Date: Feb 2015
Location: WI
Posts: 1,360
Quote:
Originally Posted by Randy_BRS View Post
I can't say that I've experienced the same from my Finnex heaters.

-Randy
Do you have the same HMX-S heater?


Salty150 is offline   Reply With Quote
Old 02/21/2017, 06:35 PM   #9
Randy_BRS
Registered Member
 
Randy_BRS's Avatar
 
Join Date: Feb 2017
Posts: 175
Smile

Quote:
Originally Posted by Salty150 View Post
Do you have the same HMX-S heater?
Yep! We use two of them on the BRS160! :-)


Randy_BRS is offline   Reply With Quote
Old 02/21/2017, 06:39 PM   #10
Salty150
Registered Member
 
Salty150's Avatar
 
Join Date: Feb 2015
Location: WI
Posts: 1,360
Quote:
Originally Posted by Randy_BRS View Post
Yep! We use two of them on the BRS160! :-)
Well, what the heck! lol

This hobby can be so confusing!


Salty150 is offline   Reply With Quote
Old 02/21/2017, 09:12 PM   #11
125mph
Registered Member
 
125mph's Avatar
 
Join Date: Apr 2011
Location: San Diego, CA
Posts: 1,425
Quote:
Originally Posted by Randy_BRS View Post
Yep! We use two of them on the BRS160! :-)
Yes, thats why I brought the heater


__________________
180G Rimless Starphire 72x24x24 (Miracles)
3 x Ecotech XR15w G4 Pro | T5 x 4 | 2 x Mp40wQD
GEO 612 Cal Reactor | Vertex Omega 150 Skimmer | Chaeto Reactor
Synergy Reef CL44 Sump | Neptune Apex
125mph is offline   Reply With Quote
Old 02/23/2017, 04:49 PM   #12
robgonsailing
Registered Member
 
Join Date: Oct 2003
Location: Seattle
Posts: 42
Mine is doing the same thing too. Have to set it at 81* just to keep the tank at 78*. I used other heaters in the tank at the same time to keep the temp constant so I don't think it's the heat output that is affecting the readings. I think the thermostat is just calibrated poorly.


robgonsailing is offline   Reply With Quote
Old 03/06/2017, 10:06 PM   #13
Mstefa1
Registered Member
 
Join Date: Jun 2009
Posts: 70
I'll chime in here and add that my new HMX-S 500w does the same exact thing. I have to set it to 86F to hold a 78F tank. Verified by independent thermometer and controlled by a RKL. If I didn't use controller I'd be pretty disappointed. This is not a very good product.


__________________
-Matt
Mstefa1 is offline   Reply With Quote
Old 03/07/2017, 01:54 PM   #14
Randy_BRS
Registered Member
 
Randy_BRS's Avatar
 
Join Date: Feb 2017
Posts: 175
Hey guys,

Thanks to feedback like this, we've decided to take a deeper look at a few of these heaters to see if we can replicate the reported issues. We should be able to provide some of our own feedback in the near future!


-Randy


Randy_BRS is offline   Reply With Quote
Old 03/07/2017, 02:19 PM   #15
Mstefa1
Registered Member
 
Join Date: Jun 2009
Posts: 70
Thanks Randy. Certainly not fault of BRS but Finnex needs to be aware of their under performing product.


__________________
-Matt
Mstefa1 is offline   Reply With Quote
Old 04/06/2017, 07:47 AM   #16
robgonsailing
Registered Member
 
Join Date: Oct 2003
Location: Seattle
Posts: 42
Any update on this? I am now up to 85* on the heater to maintain 78* in the tank. Temp is monitored by Apex and verified by a glass thermometer.


robgonsailing is offline   Reply With Quote
Old 04/06/2017, 09:22 AM   #17
Randy_BRS
Registered Member
 
Randy_BRS's Avatar
 
Join Date: Feb 2017
Posts: 175
Quote:
Originally Posted by robgonsailing View Post
Any update on this? I am now up to 85* on the heater to maintain 78* in the tank. Temp is monitored by Apex and verified by a glass thermometer.
Hey guys!

We tested a couple of these heaters off the shelf, both in the video below and supplementary to that video because of this thread, and could not replicate the same issues. We did find that Finnex's recommended 48hr wait time held true for our tests, but couldn't replicate the same extreme differences between set points and actual temp out put. (You can see this info in the video as well.)


https://youtu.be/JAqU-gCwiKE


For your particular case, have you turned on the data logging for the heater outlet to monitor when it turns ON/OFF? Is the heater in a high flow area where the increased flow keeps the heating element from giving a false temp reading to the heater's internal temp regulator?


-Randy


Randy_BRS is offline   Reply With Quote
Old 04/06/2017, 08:52 PM   #18
robgonsailing
Registered Member
 
Join Date: Oct 2003
Location: Seattle
Posts: 42
I have my heater in the display near a ph so flow isn't an issue. I have the outlet set to ON in Apex so I don't think I can log anything. My secondary heater in the sump has on and off values in Apex in case of failure. The red light on the finnex controller doesn't come on (showing it is heating) until I bump the temp up much higher than the actual water temp.


robgonsailing is offline   Reply With Quote
Old 04/06/2017, 09:16 PM   #19
Mstefa1
Registered Member
 
Join Date: Jun 2009
Posts: 70
Quote:
Originally Posted by robgonsailing View Post
I have my heater in the display near a ph so flow isn't an issue. I have the outlet set to ON in Apex so I don't think I can log anything. My secondary heater in the sump has on and off values in Apex in case of failure. The red light on the finnex controller doesn't come on (showing it is heating) until I bump the temp up much higher than the actual water temp.
Use the apex to turn on/off the heater then use the finnex controller as a backup in case the apex were to fail "on".


__________________
-Matt
Mstefa1 is offline   Reply With Quote
Old 04/07/2017, 05:40 AM   #20
wcharon
Registered Member
 
Join Date: Jan 2007
Location: Puerto Rico
Posts: 905
Waooooooo. This got me thinking.

I was trying to avoid to place a heater in my tank but the air conditioner of the house is fluctuating the tank to 76 degrees in the morning.

I saw the video and am trying to decide between the Cobalt or the Finnex.

Any suggestions as have seen in this thread different results?

Thanks in advance...


__________________
125 Gal. Reef Tank, Skimmer SRO-1000SSS (Old), Aquamaxx EM-200, Chiller Artica 1/4, BRS GFO/Carbon Reactor, Sunpower 6x80 Watt., Actinic ReefBrites, 2 Jebao RW-15, 3/4 Sea Swirl, HY-5000 Return Pump,

Current Tank Info: 125 Gal. Reef, Chiller 1/4, Skimmer SRO SSS-1000 (Old), Aquamaxx EM-200, Aqua C UV, Actinic ReefBrites, Kore 5th. Doser, APEX Full
wcharon is offline   Reply With Quote
Old 04/07/2017, 06:00 AM   #21
Mstefa1
Registered Member
 
Join Date: Jun 2009
Posts: 70
Quote:
Originally Posted by wcharon View Post
Waooooooo. This got me thinking.

I was trying to avoid to place a heater in my tank but the air conditioner of the house is fluctuating the tank to 76 degrees in the morning.

I saw the video and am trying to decide between the Cobalt or the Finnex.

Any suggestions as have seen in this thread different results?

Thanks in advance...
Finnex is an awesome heater. It's just that this model sucks because it doesn't have a remote temp probe.


__________________
-Matt
Mstefa1 is offline   Reply With Quote
Old 04/07/2017, 08:28 AM   #22
wcharon
Registered Member
 
Join Date: Jan 2007
Location: Puerto Rico
Posts: 905
Quote:
Originally Posted by Mstefa1 View Post
Finnex is an awesome heater. It's just that this model sucks because it doesn't have a remote temp probe.
Thanks for the feedback. Do you recommend other Finnex model?


__________________
125 Gal. Reef Tank, Skimmer SRO-1000SSS (Old), Aquamaxx EM-200, Chiller Artica 1/4, BRS GFO/Carbon Reactor, Sunpower 6x80 Watt., Actinic ReefBrites, 2 Jebao RW-15, 3/4 Sea Swirl, HY-5000 Return Pump,

Current Tank Info: 125 Gal. Reef, Chiller 1/4, Skimmer SRO SSS-1000 (Old), Aquamaxx EM-200, Aqua C UV, Actinic ReefBrites, Kore 5th. Doser, APEX Full
wcharon is offline   Reply With Quote
Old 04/07/2017, 10:55 AM   #23
Randy_BRS
Registered Member
 
Randy_BRS's Avatar
 
Join Date: Feb 2017
Posts: 175
Quote:
Originally Posted by wcharon View Post
Thanks for the feedback. Do you recommend other Finnex model?
For me, the more accurate Finnex option (given the stated issues from several users) would be the HPS line. Although they are not titanium like we've grown to love about Finnex, they do include an external temp sensor to regulate their ON/OFF cycles.

-Randy


Randy_BRS is offline   Reply With Quote
Old 04/07/2017, 11:04 AM   #24
wcharon
Registered Member
 
Join Date: Jan 2007
Location: Puerto Rico
Posts: 905
Quote:
Originally Posted by Randy_BRS View Post
For me, the more accurate Finnex option (given the stated issues from several users) would be the HPS line. Although they are not titanium like we've grown to love about Finnex, they do include an external temp sensor to regulate their ON/OFF cycles.

-Randy
Thanks Randy. I will check that one.


__________________
125 Gal. Reef Tank, Skimmer SRO-1000SSS (Old), Aquamaxx EM-200, Chiller Artica 1/4, BRS GFO/Carbon Reactor, Sunpower 6x80 Watt., Actinic ReefBrites, 2 Jebao RW-15, 3/4 Sea Swirl, HY-5000 Return Pump,

Current Tank Info: 125 Gal. Reef, Chiller 1/4, Skimmer SRO SSS-1000 (Old), Aquamaxx EM-200, Aqua C UV, Actinic ReefBrites, Kore 5th. Doser, APEX Full
wcharon is offline   Reply With Quote
Old 04/07/2017, 05:51 PM   #25
Mstefa1
Registered Member
 
Join Date: Jun 2009
Posts: 70
Quote:
Originally Posted by wcharon View Post
Thanks for the feedback. Do you recommend other Finnex model?
Honestly if you are using a reef controller to control your heater, it doesn't really matter as you are only using the built in thermostat as a fail safe in the even the outlet got stuck on.


__________________
-Matt
Mstefa1 is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -6. The time now is 03:34 AM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright 1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.