what size heater do i need for a 300 gallon tank.
344739
I am using the 300 watt in a 120 gallon for aquaculture, it seems to handle very well, even outside. I would probably use 2 or a larger one for 300 gallon?
344740
I have a 225 gallon tank and I run two 150 watt one on each side and my temp. Stay. At 76
344741
I would recommend finding some higher quality heater for your 300gal tank. You could find a 1000watt heater or just run 2 heaters
807983
Rheem has a size app http://www.rheem.com/products/tankless_water_heaters/ez_spec_sizing/
2018489
I have a 20 gallon aquarium also and I have a 100 watt but you could probably get away with a 50 watt. I always set the heaters up vertical so really couldn't tell you on that
771927
In my 120 aquarium I used the 250watt. Going a little bit on the large side allows for a more stable water temperature. And yes, heaters can be placed in any direction, including horizontal or upside down, and still work.
281012
You'd have to look at the measurements of the tank. I got this for my 30 gal tank.
1022896
This size heater is for a soft side, mid fill waterbed that looks like a regular mattress. If you have a wooden framed waterbed (hardside) you'll need a 300 Watt heater. If your existing 300 Watt heater is not doing the job, it is probably defective.
1922572
I would go with at least the 50 watt. Probably the 100 would be better. You can always put it a little bit diagonally in the tank. it is ok to fully submerge even the top part. I would consider going with 2 50watt heaters with one on either end of the tank for a more even heating effect. Plus both heaters would last longer because neither one would have to work as hard.
1497043
300 Watt can heat a larger fish tank. Be careful not to drop it as it has a thin glass tube that the water travels through and it will crack and leak if you do drop it.
2007390
It's fine, I use mine in a 55 Gal so you have plenty even if you decide to go to a bigger tank. Enjoy these are the best heaters.
1734436
It probably won't even fit, but even if it does it would overheat one gallon before the thermostat could shut it off. A 25 watt heater is really meant for a 5 gallon tank or better (3-5 watts per gallon is the general rule). Small volumes of water usually don't provide enough water circulation for heater thermostats to function properly.
1418199
This listing is for a 50 watt heater. The standard recommendation is about 3 watts per gallon.
1631895
The Aqueon is been unreliable for temp, I bought a Eheim heater and its holding temp well, for a tank your size the 300w should do the trick, rated for up to 250g
241421
No. It supplies a constant 8.4 amps at 13.8 volts. It will supply 115 watts which is nowhere near your 300 watt heater. Be aware that it will shut down if current draw is more than 70% of the ratings on the box so it is truly an 8.4 amp power supply, not a 12 amp. For your 300 watt heater at 12volts, you'll need to use a power supply that can supply 300/12 or 25 amps. Since Pyrimid is so creative with their claims, you would need one of their power supplies rated at a minimum of 37.5 amps to supply a constant 300 watts. In general you will find it expensive and inefficient to convert house current to 12 volts then heat with that power. You will be much better off to buy a heater that runs directly from house current. You'll get more heat, you won't lose the inefficiency of the power supply (only 60% efficient) it will be cheaper, and probably more reliable.
499125
You could use any size tank. I use the one my BBQ grill came with. Actually I bought a second one for the stove.
1497046
If you are concerned with flows, get the 300W, even if you don't need the heating. For most filters >75 gallons, you need more than the small 1/2" hose barbs the 200W has. I wish they had 3/4" or 7/8" barb on the 300W...honestly.
429959
I don't feel that thee is enough difference between 200 watt and 300 watt heater unless the heater were to malfunction. The 300 would in my opinion be better if you live in a colder climate and kept your home heat at a lower temperature
1888175
Holly you need to have atleast 100lbs of presure to opperate your heater properly.. the normal size of the copper tubing is atleast 1/2 inch.. your heater won't opperate on a regular lp tank like you would hook up to a grill.. plus you must have a regulator from the tank to the heater... good luck