This pump is massively heavy, which I assume is a good thing. I have it set to a timer which runs my solar hot water heater. I cant even notice the power drain on my electric bill, which meters down to the hour. (As in, I cant tell the difference from when the pump comes on from the spike in power usage) It's whisper quiet. I cant speak for its longevity because I have only had it a few months. The paint appears to be some sort of heavy enamel that looks like it can withstand anything.

Setting it up isn't too hard, there are a few prongs inside it for different wires. It clamps down on the wires so they dont come loose. You have to buy a flange attachment to connect it with a pipe, but that's pretty straightforward too.

Overall I like it. It will pay for itself in heating costs in around 6 months if you are doing a solar water heater like me.

Could not be installed due to a missing flange gasket in the delivered package. There are suppose to be two flange gaskets to allow for installation.

Received the same recirculating pump and it came the two flange gaskets required for installment. So far the pump is working very well although slightly noisier than the pump that was replaced.

I love this pump! Only 25 watts and virtually silent! Others have mentioned that it gets hot. Well, what do you think would happen if you have 120 deg water running through it? My only personal downside is that after I installed a good ¾" hot water return line, I actually have good gravity flow, so my hot water lines are staying warm (over 85 deg), even with the pump off. tip: I recommend either letting it run all the time or installing a timer since the aqua stat switch I installed never goes below 85 deg on my return line to run the pump. I recommend this pump, which is much less expensive than the one with the built in timer. I simply got a $10 plug-in timer for it. Easier to set up and if the timer fails, the pump is still good.

Dear Vendor: Please provide the correct picture. Use mine if you have to.

This pump was purchased to replace its 1999 vintage predecessor. It let off a burnt rubber smell and ceased functioning after 21 hard working years. The old product number was 59896163 (blue) and this is the 59896155 (red). The model numbers matched (UP15-42F) as did all of the other specifications. As you can see the original pump's housing has two small pipes connected to a pressure differential switch.

The burnt out unit was removed. The opening was cleaned and the new pump fits perfectly.

This is easily worth 5 stars, but I'm removing one because that picture is wrong. Also, the screws that hold the electrical cover to the body seemed too long for their holes and I ended up zip tying it.

The fact the original blue portion could be leveraged saved a lot of gaskets, wrenches and headaches.

Getting the old pump out was the hard part as the bolts were frozen solid. Once the flanges were wire brushed clean and repainted the new pump slotted right in and worked right away. One warning on the installation is in order though. PURGE PURGE PURGE all of the trapped air in your water lines. When you think all the air in the lines is gone . . . it probably isn't. Check the pump periodically for a few hours to make sure. Trapped air will burn your new pump out so don't take a chance. I've also run an electrical line to the house and added a switched timer to stop the pump after a preset time. If you just let the pump operate 24/7 continuously you'll find your gas bill taking a huge hit on therms used. I found that out the hard way years ago with the old pump and added a switch in the garage near the pump. With the new switched timer at the house I no longer need to trek back and forth to the garage. Life is good in paradise. :-)