Reef Central Online Community

Go Back   Reef Central Online Community > General Interest Forums > New to the Hobby
Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Unread 09/23/2017, 11:17 PM   #1
tri4god
Registered Member
 
tri4god's Avatar
 
Join Date: Sep 2016
Location: San Jose, CA
Posts: 171
Heater in Weir?

I have an Eheim Jager 300w heater. The thing is huge and won't fit in the sump. Can I put it in my weir? I am not sure there is much waterflow in there, just at the top. thoughts?


__________________
65 Gallon/ 36x18x24, Aqueon Proflex Sump Model 3, Mars Aqua 165w LED x2, Coralife 65 Super Skimmer, Mag 9.5 Return, Vortech MP40, Jebao DP‑4 Auto Dosing Pump, JBJ Artica 1/3 HP Chiller

Current Tank Info: Rectangular
tri4god is offline   Reply With Quote
Unread 09/24/2017, 05:19 AM   #2
SAT
Registered Member
 
SAT's Avatar
 
Join Date: Apr 2001
Location: Berwyn, PA
Posts: 4,073
Blog Entries: 1
You want good water flow around a heater.


__________________
Stuart

Current Tank Info: 300G Caribbean biotype reef set up in 2003.
SAT is offline   Reply With Quote
Unread 09/24/2017, 06:19 AM   #3
ca1ore
Grizzled & Cynical
 
Join Date: Apr 2006
Location: Stamford, CT
Posts: 17,319
There's more flow than you think. Should be ok unless the overflow drains down when the pump is off.


__________________
Simon

Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!

Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
ca1ore is offline   Reply With Quote
Unread 09/24/2017, 06:37 AM   #4
billdogg
Registered Member
 
billdogg's Avatar
 
Join Date: Apr 2008
Location: Grove City, Ohio
Posts: 10,806
Quote:
Originally Posted by ca1ore View Post
There's more flow than you think. Should be ok unless the overflow drains down when the pump is off.

^^^This^^^

It'll be just fine there as long as it stays wet.


__________________
I'll try to be nice if you try to be smarter!
I can't help that I grow older, but you can't make me grow up!

Current Tank Info: 120 mixed reef with 40b sump, RO 150 skimmer, AI Sol Blue x 2, and a 60g Frag Tank with 100g rubbermaid sump. 2 x Kessil A360w lights, BM curve 5 skimmer
billdogg is offline   Reply With Quote
Unread 09/25/2017, 06:42 AM   #5
MurphyLong
HMFIC
 
MurphyLong's Avatar
 
Join Date: Apr 2017
Location: Eastern NC
Posts: 331
Quote:
Originally Posted by ca1ore View Post
There's more flow than you think. Should be ok unless the overflow drains down when the pump is off.
...and chances are, if there's a power outage, it will turn off the heater too. I've considered putting my heater in my overflow too, since there's not enough room in my sump to do it functionally. It's in there all sideways, tied up in my chaeto.


MurphyLong is offline   Reply With Quote
Unread 09/25/2017, 08:17 AM   #6
ca1ore
Grizzled & Cynical
 
Join Date: Apr 2006
Location: Stamford, CT
Posts: 17,319
My perspective on this is that putting a heater in the overflow is an aesthetic foul; however, if you must do it just be certain that the overflow cannot drain down while the heater still operates. At best, that will destroy the heater (unless you use one that has a dry shut off), at worst it could damage the tank. If it were me, I would buy multiple, shorter heaters that would fit in the sump.


__________________
Simon

Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!

Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
ca1ore is offline   Reply With Quote
Unread 09/25/2017, 08:19 AM   #7
ca1ore
Grizzled & Cynical
 
Join Date: Apr 2006
Location: Stamford, CT
Posts: 17,319
Quote:
Originally Posted by MurphyLong View Post
...and chances are, if there's a power outage, it will turn off the heater too. I've considered putting my heater in my overflow too, since there's not enough room in my sump to do it functionally. It's in there all sideways, tied up in my chaeto.
Ok, but the pump can be off for other reasons than a broad power outage (which is why I did not say a power outage). I recall seeing a thread years ago where a heater in the overflow gradually melted a hole in the PVC stand pipe, overflow drained down, heater exploded and cracked the tank.


__________________
Simon

Got back into the hobby ..... planned to keep it simple ..... yeah, right ..... clearly I need a new plan! Pet peeve: anemones host clowns; clowns do not host anemones!

Current Tank Info: 450 Reef; 120 refugium; 60 Frag Tank, 30 Introduction tank; multiple QTs
ca1ore is offline   Reply With Quote
Unread 09/25/2017, 08:24 AM   #8
d0ughb0y
Registered Member
 
d0ughb0y's Avatar
 
Join Date: Mar 2008
Location: sf bay area
Posts: 5,165
would the heater be off if the ambient air temp is higher than the heater temp setting?


d0ughb0y is offline   Reply With Quote
Unread 09/25/2017, 11:33 AM   #9
SAT
Registered Member
 
SAT's Avatar
 
Join Date: Apr 2001
Location: Berwyn, PA
Posts: 4,073
Blog Entries: 1
Quote:
Originally Posted by d0ughb0y View Post
would the heater be off if the ambient air temp is higher than the heater temp setting?
The thermostat for the heater needs to be submerged, in which case it's the water temperature, not the air temperature, that matters.


__________________
Stuart

Current Tank Info: 300G Caribbean biotype reef set up in 2003.
SAT is offline   Reply With Quote
Unread 09/25/2017, 12:01 PM   #10
d0ughb0y
Registered Member
 
d0ughb0y's Avatar
 
Join Date: Mar 2008
Location: sf bay area
Posts: 5,165
Quote:
Originally Posted by SAT View Post
The thermostat for the heater needs to be submerged, in which case it's the water temperature, not the air temperature, that matters.
I know that. and agree heater must always be submerged.

But in case the water in the overflow completely drains, wouldn't the heater turn off if the ambient is higher than the setting? the heater does not know or care if it is under water or not when sensor takes the temp reading

so perhaps if the house temp is set to say 78 and the heater set to 75, then it won't be a problem if overflow drains.

Matt, I know the room where your tank is gets direct afternoon sun, do you have an idea what the room temp is in the winter.


d0ughb0y 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



All times are GMT -6. The time now is 07:51 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 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 ©1999-2022
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.