I am still in the planning phase, but I have noticed outside of this forum that the larger the pump the more heat it generates in the water. Has anyone noticed a large difference in large tanks?
Do pumps generate a lot of heat?
- Thread starter Nim Dibbley
- Start date
A pump that uses 50w will output 50w of heat, consistently. If the pump is completely submerged, then it's the same as having a 50w heater with a broken thermostat in your tank.Nim Dibbley;4393362; said:
Pumps don't destroy any energy. They turn it all into heat and kinetic energy. The kinetic energy turns into heat via friction.
Thanks for the reply. I don't yet have a heater for this setup, but it sounds like I may not need to buy a new one. I guess I will see what happens with the temps once it is up and running.
jschall;4393749; said:
They also create noise, vibrations, and move water. That energy isn't turned into heat. A 50 watt heater is greater that a 50 watt pump. That said pumps do create heat in a tank.
The water movement is turned into heat via friction. Same with the noise and vibrations (which, incidentally, are exactly the same thing.)leather;4396055; said:
You still need a heater, because a pump has no thermostat on it. If the pumps in your system produce so much heat that you don't need a heater, you'd need a chiller instead.
leather is correct in that most of the electricity going into an electric motor is turned into kinetic energy, usually 60-80%. However, if that energy wasn't CONSTANTLY being turned into heat in your aquarium, then you could basically run the pump until the water was up to the speed you wanted and then turn it off indefinitely. Free filtration forever would be awesome, wouldn't it?
Ok. That's not COMPLETELY true, but personally I find it's hard to theorize what would happen if the laws of physics were completely wrong. So shoot me.
jschall;4393749; said:
Wow. I should get a 300 watt submersible pump then. Why did I buy a heater and a pump! I could of saved that cash for something else.
I wish it was that simple................
To answer the OP's question: Yes pumps do add "some" heat to the water. Submersible pumps add more than external pumps.
Yes you will still need a heater if you live in colder climates, I have a heater for winters here in Phoenix so you most likely will need a heater too
Ive noticed a huge increase in the heat of my water running my two eheim 5000 compacts. My heater is set to 23 degrees C and the room temp is approx 23 degrees C but my tank is sitting at 27 degrees C. I know it isn't the heater malfunctioning.
Since using these pumps my tank sits at a constant 27 degrees, it will be good in the winter but its a nightmare in the summer as a chiller was the last thing I thought I would need here in Scotland even in the summer.
Since using these pumps my tank sits at a constant 27 degrees, it will be good in the winter but its a nightmare in the summer as a chiller was the last thing I thought I would need here in Scotland even in the summer.
A pump that uses 50w will output 50w of heat, consistently. If the pump is completely submerged, then it's the same as having a 50w heater with a broken thermostat in your tank.
Where did that come from......
Where did that come from......