Quiet, low heat gain pumps??

[sumpfish]

Anyone have any suggestions on a pump that is very quiet and has minimal heat gain into the tank. I'm talking about external pumps. Currently I have a Poseidon Titanium PS-3 pump for my wave system, which is wonderfully quiet but seems to heat the tank more than I'd like. I also have a Quiet one 5000 for my main circulation pump that is neither quiet nor cool. I'm looking to replace the Quiet One and possibly get another Poseidon. What else is out there that is very quiet and has minimal heat load?? This tank is in my living room, which is why being quiet is important.

TIA,

Mark.

 

[javajaws]

Iwaki MD-30RLXT or 20RLXT. Great pumps, no fans to make noise and doesn't add much heat. I had a T4 and replaced it with a 30RLXT...much happier temp wise.