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This product does not comply with the "Safe Drinking Water Act,"
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This item is for non-potable (non-human consumption) water applications only.
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NOTE: Image depicts ALPHA-15-55F/LC model
Grundfos is proud to introduce the next generation of
energy efficient circulators - the Grundfos ALPHA.
By incorporating a permanent magnet motor design,
power consumption is now reduced by 50%. The
Grundfos ALPHA adapts to the variable demands of
the system without sacrificing comfort. Using the
AUTOADAPT feature, the Grundfos ALPHA will analyze
the system and adjust to meet your heating demands.
(based on 8 reviews)
of respondents would recommend this to a friend.
Reviewed by 8 customers
Displaying reviews 1-8
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Great pump, horrible packaging
By Plumber Dave
from P'ville NY
Comments about ALPHA 15-55 F Cast Iron Circulator Pump w/ Terminal Box:
Only negative, is the poor packaging the manufacture chooses to use. Heavey pump packaged with a small plastic check valve that both tumble around an oversized un-dampened box.
Bottom Line Yes, I would recommend this to a friend
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Very nice circ pump
By Rich the angry Jets fan
from Central Illinois
Replaced a "green" pump that just wasn't doing the job. This Grundfos was super easy to install. Nice European-style touches (like not having to futz with wire nuts). This pump is quiet. Maintains proper temperature differential.
(1 of 2 customers found this review helpful)
from Winter Park Colorado
Replaced a 26-99 with the alpha, I'm very happyTim
(1 of 1 customers found this review helpful)
Silent energy savers
from Manistee Michigan
Bought three of the alpha pumps and set on auto adapt. Main loop circulator is running constant 24 watts and pumping 12 Gpm One zone on auto runs 14 watts @10 gpm and last one running 13 gpm and 21watts. If you are looking for a low energy consumption pump this is the one.
Extremely quiet and versatile: manual and auto settings; low wattage
(2 of 2 customers found this review helpful)
Dramatic energy savings
By Sawmill Dan
from Fairlee, VT
I replaced 5 Taco 007 pumps with these Alpha 15-55 pumps in an off-grid system.Three pumps are set at low constant speed, one is at medium constant speed and one on automatic due to different requirements.The total electrical draw of all five pumps is less than one of the 007's. One pump supplies a radiant system in a 1500 square foot shop and draws only 6 watts! The ability to adjust the flow rate makes balancing the system easy and the cool digital readout is the best. These pumps are also completely silent.
(0 of 1 customers found this review helpful)
Installed two Alphas to replace two Taco 007-IFC zone circulators in a constant-circulation space heating system. The Alphas are running on low fixed speed (i.e., not using the Autoadapt feature because as zone circulators the head and flow are fixed in each zone). The system deltaT is better now; the system was previously overpumped. The Alphas are silent. The electrical draw of this system dropped to 12 Watts with the Alphas from 163 Watts with the old circulators. That is a 93% reduction and will result in huge seasonal electrical savings for the building.The build quality and overall design of the circulators is excellent. The wiring could not be easier. The simple lighted "user interface" and push-button mode-selector is just that -- simple. Well laid out and works great.
Works Great and easy to install
[...]When first powering up, be sure the system is pressurized or pump will show 0 gallons/per min flow regardless of setting. Instructions say nothing about this. Otherwise great product.Have it connected to a wood stove water heating loop and a TurboMax 65 tank (see my Turbomax review also). Set on AUTO, it draws about 24 watts when the system is cold, as the system heats and the pressure increased to 15PSI, power drops to about 21 watts. About the same power needed wether circulating only to the storage tank or baseboards and storage tank. I expected more power would be needed when running thru the baseboards also, but not true??Anyway, great product and so far has been working flawlessly.
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