pump heat transfer; recommendations ?

[Kevin M. Smith]

I have a Custom Sea Life T1 circulation pump. This is the one with
the titanium bearings. It is a -very quiet- pump. The problem is
that I think it is transferring too much heat into my aquarium. The
previous pump I had, which was a cheap pump (aquamedic) was noisy and
the bearings kept failing, but it operated the aquarium at a lower
temperation- but i had to get rid of it because it was unreliable.

For example, with the old pump the aquarium consistently ran at about
79-81 degrees without a chiller. With the current T1 pump (rated at
96 watts) , the aquarium pump runs much quieter, but to keep it at 79
degrees, the chiller goes on about 7-8 times daily. Without the
chiller, the temperature goes up to 82+ with this pump which is too
hot. I believe that the flow rates of both pumps were about the same
(at least from what I can tell).

I would like to find a pump which is quiet and efficient in terms of
heat transfer and I am willing to spend money. the cost of having the
chiller go on and off so frequently is much more expensive that any
pump.

Reccomendations ?

[RickS]

I feel your pain! :)

I went through many many pumps in the past. Nothing is as quiet as the
Custom Sea Life or the old style Quiet Ones. After many many pumps, the
only answer I ever found was a Dolphin Ampmaster 3000. The only drawback is
its size and its use of 1.5" fittings. If you can fit it and reduce the
fittings the Ampmaster pumps are your answer. Aside from being extremely
quiet, they are very efficient, drawing less than 1 amp and they add little,
if any, heat to the water since the motor is separated from the wet end.

"Kevin M. Smith" > wrote in message
...
> I have a Custom Sea Life T1 circulation pump. This is the one with
> the titanium bearings. It is a -very quiet- pump. The problem is
> that I think it is transferring too much heat into my aquarium. The
> previous pump I had, which was a cheap pump (aquamedic) was noisy and
> the bearings kept failing, but it operated the aquarium at a lower
> temperation- but i had to get rid of it because it was unreliable.
>
> For example, with the old pump the aquarium consistently ran at about
> 79-81 degrees without a chiller. With the current T1 pump (rated at
> 96 watts) , the aquarium pump runs much quieter, but to keep it at 79
> degrees, the chiller goes on about 7-8 times daily. Without the
> chiller, the temperature goes up to 82+ with this pump which is too
> hot. I believe that the flow rates of both pumps were about the same
> (at least from what I can tell).
>
> I would like to find a pump which is quiet and efficient in terms of
> heat transfer and I am willing to spend money. the cost of having the
> chiller go on and off so frequently is much more expensive that any
> pump.
>
> Reccomendations ?

[Timothy Tom]

Ditto on the Ampmaster 3000. Quiet, low power consumption, and little
heat transfer (at least according to the manufacturer).