How many gallons per each heater?
1859535
really depends on how much you need to raise the temperature. This model burnt out on me after a month, the glass cracked and when that happens, usually you loose all of your fish and sometimes even the tank (it can in some cases blow out the fish tanks glass as well). I'd recommend the aqueon pro models. they are much more accurate, and being housed in a high density plastic there is little risk of them blowing up your tank. http://www.amazon.com/Aqueon-Pro-Heater-Size-Watt/dp/B006OP4V5A/ref=sr_1_6?ie=UTF8&qid=1387515651&sr=8-6&keywords=aqueon+pro+heater
1859536
really depends on how much you need to raise the temperature. This model burnt out on me after a month, the glass cracked and when that happens, usually you loose all of your fish and sometimes even the tank (it can in some cases blow out the fish tanks glass as well). I'd recommend the aqueon pro models. they are much more accurate, and being housed in a high density plastic there is little risk of them blowing up your tank. Aqueon Pro Heater
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.
1959985
4.2 lbs per gallon. I believe about 23.6 gallons but if I recall correctly they will not fill it to that level because as temperatures increase, the gas expands so they full them to less than full to to allow for temperature increases. Bottom line is I think they stop somewhere around 90% capacity (21 or 22 gallons).
344741
I would recommend finding some higher quality heater for your 300gal tank. You could find a 1000watt heater or just run 2 heaters
1784225
Performance:First Hour Rating: 83 gallonsRecovery at 90 degree rise: 40.4 Gallons/HourThe only important thing of a water heater is enough supply of hot water to all family members whenever they need to use.
484042
Hello Corpus,Thank you for your question. Your pool is 1440 gallons. According to the sizing chart on the manufacturer's and our website, this heater is much too powerful for you. I recommend the Ecosmart SmartSPA 5.5 which will heat your pool by 20F in 12.4 hours. After it reaches your desired temperature, it will maintain that temperature easily.Kind Regards,Ross
1733749
The heater unit itself uses 2 D batteries. The power requirements of the pumps vary per pump. You just have to search for the specs of the pump you want to use. For example I googled one pump, the "Eccotemp 03526-14A Flojet 2.9 GPM 50 PSI Water Pump" and got "2.9 GPM(Gallons per minute), 50 PSI, 12 Volt, 10 Amp" . Since Watts=Amps x Volts, that would be 120 watts.
1565842
The key is not tghe size of the tank but the regulator. We use a 25 gallon tank (the ones about 4 feet tall that you can get a home depot or lowes for about $100. We went to a propane place to get the regulator and told them we were using a heater this size. We also cook with the propane.
1895951
It depends on the volume of water and the room temperature. This heater will easily maintain a 10gal tank at 80 even when the room temperature is around 65. I am sure there is some mathematical equation that you can use to calculate what it could do in a gallon or a quart.
1565839
For my house (1400 sqfeet, in maryland), we typically use ~100 galon per month. We are using this for main heater of my house. Still a bit cheaper than electric central heating cost.
1971814
55 gallons to 90 gallons. It is not suitable for a 10 gallon tank (as one reviewer mentioned). The heater is too long to fit in smaller tanks, and has far more wattage than needed for anything less than a 55 gallon.
2101477
2, 40 gallon tanks of propane .that's what we use had no problems with thatonce they run out at shuts off and still never had a freeze I hope that helps you.
312029
There's multiple sizes selectable here. I prefer yo run two undersized heaters so if the thermostat goes bad i in one it won't cook the fish. For a 39 gallon I'd think you'd want like two 100w heaters.
745686
It depends on how much water you want to emit at a time one gallon per hour or two gallons per hour.
1879595
Checking at www.Rheem.com i can only find one "short" tank heater, it is 30 gal electric. Maybe you should consider a tankless heater.
2073921
A 40 Gallon should have a 200 watt heater... it's 5 watts per gallon is the normal requirement
344740
I have a 225 gallon tank and I run two 150 watt one on each side and my temp. Stay. At 76