Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 03-07-2011, 12:35 PM   #1
Aquarium Advice Activist
 
NODAK1979's Avatar
 
Join Date: Feb 2011
Location: Nashville, TN
Posts: 153
Do your heaters actually heat to the temperature you set them to?

We originally had a Stealth Pro. We took it back due to the recall and got an Aqueon. They both have one thing in common though: They consistantly heated the water to 2-3 degrees colder than they were set to. We have thermometers on both sides of the tank...and the heater never goes up to where it claims it is.

Both heaters were more than enough watts for the size of our tank. We made sure of that.

Do you have this problem often? Will getting two heaters help solve it?
__________________

__________________
NODAK1979 is offline   Reply With Quote
Old 03-07-2011, 12:55 PM   #2
Aquarium Advice Apprentice
 
Join Date: Mar 2011
Location: Redcar, UK
Posts: 35
My Delta Therm constantly heats to about 1.5 - 2.0 degrees lower than whats indicated on the heater. BUT, here's the question - whats incorrect, the heater, or the thermometer?
__________________

__________________
Flan123 is offline   Reply With Quote
Old 03-07-2011, 01:15 PM   #3
Aquarium Advice Activist
 
NODAK1979's Avatar
 
Join Date: Feb 2011
Location: Nashville, TN
Posts: 153
Quote:
Originally Posted by Flan123 View Post
My Delta Therm constantly heats to about 1.5 - 2.0 degrees lower than whats indicated on the heater. BUT, here's the question - whats incorrect, the heater, or the thermometer?
It's a good question, but if I have two thermometers telling me the water is at a certain temp....I tend to believe they both aren't wrong. It's possible of course...but it's a "two versus one" sort of situation.
__________________
NODAK1979 is offline   Reply With Quote
Old 03-07-2011, 01:38 PM   #4
Aquarium Advice Addict
 
thincat's Avatar
 
Join Date: Nov 2008
Posts: 5,330
well, fidle with it until you get the temp. you want...I don't have much faith in any heater....
__________________
Happy Reefing,
TC
thincat is offline   Reply With Quote
Old 03-07-2011, 01:40 PM   #5
Aquarium Advice Addict
 
WhiteDevil's Avatar
 
Join Date: Apr 2009
Location: 60118
Posts: 2,438
Use a heater controller. It prevents all the bad crap associated with heaters if they do/when they do go out. The tanks are spot on with what the heaters are actually set to and never go over/under.
__________________
That's not a planted tank. That's a jungle with glass around it- MFDROOKIE Circa 2011
WhiteDevil is offline   Reply With Quote
Old 03-07-2011, 01:46 PM   #6
Aquarium Advice Addict
 
carey's Avatar

POTM Champion
 
Join Date: Feb 2011
Location: Deltona, Florida
Posts: 20,962
Do inline heaters come out any better? Been fiddling with getting one maybe.

My heater also runs about 2 degrees lower than the truth.
__________________
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.
carey is offline   Reply With Quote
Old 03-08-2011, 04:54 AM   #7
Aquarium Advice FINatic
 
uscamaro's Avatar
 
Join Date: Jan 2008
Location: Las Vegas
Posts: 861
My heater is where my overflow & return pipe are located and thermometer is in the main tank. Basically the water is heated, then flows into my wet/dry filter and is sucked back and released into the tank. Heater is set to 77 and thermometer reads 75.4-75.2 (I expect a little cooling off in the sump). My heater is extremely consistent.
__________________
-Patrick

uscamaro is offline   Reply With Quote
Old 03-08-2011, 12:06 PM   #8
Aquarium Advice Regular
 
Join Date: Jan 2011
Location: Edison, NJ
Posts: 81
I go with my thermometer - in my 46gal it's opposite the heater and in my QT it's on the other side of the tank - I keep both tanks at 78 and as long as temp remains constant I know the heaters are doing their job even if the heater temp/thermometer temp don't match.
__________________
46 gallon bowed fw: 6 neon tetras, 2 spotted corys, 3 black skirt tetras, 2 zebra danios & 1 white clouds - still stocking!
andreahp is offline   Reply With Quote
Old 03-08-2011, 01:44 PM   #9
AA Team Emeritus
 
cmor1701d's Avatar


 
Join Date: Feb 2003
Location: Belle Mead, NJ
Posts: 7,814
After getting the same type of results at home I brought 2 digital and two mercury thermometers to the metrology department at work (pharmaceutical). The scientific glass and cheap plastic thermometers both agree with each other and are correct. It appears that all digital thermometers are off by 1.5 -2 degrees Fahrenheit.

The exact temperature doesn't matter. What does matter is consistency. The temperature shouldn't vary more than 2 degrees in a 24 hour period (reef tank).

I always use 2 heaters connected to a dual controller. One is set at 1 degree below the other. If the tank cools 2 degrees, then both heaters come on. If one heater fails the other is there as a backup.

If the power fails for any period of time the tank is lost (no generator).
cmor1701d is offline   Reply With Quote
Old 03-08-2011, 09:45 PM   #10
Aquarium Advice Freak
 
Join Date: Dec 2010
Posts: 234
Whenever I get a new heater, I put it in a 5 gallon bucket of water and a few thermometers as well as use a laser thermometer... Set the heater and wait for a few hours and test the water temperature. Adjust as needed and wait some more.
__________________

__________________
duoc9119 is offline   Reply With Quote
Reply

Tags
eat, eater, heat, heaters, temperature

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Common for heaters not to meet the temp you set? sdrone Freshwater & Brackish - General Discussion 8 02-18-2011 12:02 PM
Heaters and Temperature Control neilanh Freshwater & Brackish - Getting Started 5 01-27-2007 02:21 PM
Heat Omega Saltwater Reef Aquaria 5 09-11-2005 03:05 PM
Water temperature temperature hyetexa2001 Freshwater & Brackish - General Discussion 3 08-12-2005 11:53 AM
Temperature and Fitration question for new set-up SkinnyPete Saltwater & Reef - Getting Started 9 02-05-2005 04:40 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 04:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.