B&G #100 Circulator Pump Replacement
#1
01-25-11, 06:26 AM
B&G #100 Circulator Pump Replacement
I was just looking at PEX Supply for some spare parts to have on hand and noticed they have the B&G Pump (complete) on sale for just over $200. That is considerably cheaper than anyone else has them and it may be worth while to keep one on hand. My experience has been they go out at the coldest of times. It would be easy to switch and rebuild the old one at your leisure. With a few additional parts the bill could go over $300 and you would get free shipping.
#2
01-26-11, 05:24 AM
If you're going to go to that expense you're better off buying a wet rotor type such as Taco, Grundfos, etc. During the non heating season cut in a couple of isolation valves then if the B&G dies install the new one. You'll cut your energy consumption and they are easier and less expensive to repair if it comes to that.
#4
01-26-11, 11:01 AM
Taco 007 has been commonly used on packaged boilers for many years. There is a comparible Grundfos, not sure of the number. They are one piece with a water lubricated cartridge.
#5
01-26-11, 04:59 PM
For a single zone or circulator-zoned system, several options among many include:
Taco 007
Taco 00-R (3 speed)
Grundfos 15-42
Grundfos 15-58 (3 speed)
The old-fashioned Taco version of the B&G 100 is the Taco 110.
The 100 and 110 are low-head, flat-curved circulators. Those are desirable characteristics in a pump on a zone-valved system. Not really important in a single-zone or circ-zoned system.
If you want to go totally new age, try a Grundfos Alpha. They are 'smart' and have a very low electric draw. Although compared to the B&G100 and Taco 110, the others draw significantly less already.
Taco 007
Taco 00-R (3 speed)
Grundfos 15-42
Grundfos 15-58 (3 speed)
The old-fashioned Taco version of the B&G 100 is the Taco 110.
The 100 and 110 are low-head, flat-curved circulators. Those are desirable characteristics in a pump on a zone-valved system. Not really important in a single-zone or circ-zoned system.
If you want to go totally new age, try a Grundfos Alpha. They are 'smart' and have a very low electric draw. Although compared to the B&G100 and Taco 110, the others draw significantly less already.
#6
01-27-11, 06:49 AM
I have 3 zones so do I understand correctly that the 3 speed pumps will go to the highest output when all zones call for heat. Do I need a special controller for that?
#7
01-27-11, 07:55 AM
The 3 speed pumps are switch settable. They won't 'change gears' during operation, you just get a choice of three fixed speeds. There are three different pump curves along which the pump will operate depending on the speed setting.
#10
01-29-11, 01:11 PM
No. An economical setup would be low-power zone valves and a ECM smart-circ like Grundfos Alpha, Wilo ECO, or Taco Bumblebee (when it becomes available, someday).
Traditional, non-ECM circulators draw 50-80 watts each. That's a lot of juice. An ECM circ on a typical residential system might end up at around 8-15 watts.
Traditional, non-ECM circulators draw 50-80 watts each. That's a lot of juice. An ECM circ on a typical residential system might end up at around 8-15 watts.
