Please enter the email address associated with your account and we will send you a link to reset your password.
Your password reset link is on its way. If you have problems accessing your account, please contact us at 888-757-4774 and we'll help you out.
I'm sorry, your email address was not found in our system.
If you think this is a mistake, please contact Customer Service at 888-757-4774 or email us.
Location: 185 Price Parkway, Farmingdale, NY 11735
Hours: 8:00AM - 7:00PM, Mon - Fri
This product does not comply with the "Safe Drinking Water Act,"
which requires that products used in any system providing water for human
consumption (drinking or cooking) to meet low-lead standards.
Please check the box below to confirm you are aware of that this item is for non-potable water applications only.
This product will NOT be used in the installation or repair of a potable water (human consumption) application.
You must agree to this statement in order to purchase this product.
Do not use this item for any installation or repair of potable water applications.
This product does not comply with the "Safe Drinking Water Act,"
which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking).
This item is for non-potable (non-human consumption) water applications only.
We accept returns of any unused and unopened merchandise within 5 days of receipt and accept returns of defective merchandise within 14 days of receipt. All returns must be accompanied by a Return Goods Authorization, which may be obtained by contacting a customer service representative either by phone or by e-mail. All manufacturer warranties are honored and claims should be made through SupplyHouse.com.
See full Return Policy.
Add this item to your cart to calculate shipping cost.
The entire staff at SupplyHouse is committed to doing everything we can to ship your order out accurately and as quickly as possible. Most orders ship within 24-48 hours and expedited orders go out the same day when placed before 3:00pm EST. If an item is back ordered for any reason, you will be notified via e-mail. Please note in the special instructions at checkout if you need receive your order by a specific date.
See full Shipping Policy.
SupplyHouse.com is committed to providing you with the highest quality products at the lowest prices available. We are committed to competitive prices and will honor our Low Price Guarantee if you find an identical item at a lower price.
For complete information on our low price guarantee, go here.
There is a Minimum Advertised Price (MAP) allowed by the manufacturer on this product. Add item to cart for lowest price.
We are dedicated to protecting your order information. Because of this, all personal data that is transmitted through our site is encrypted using SSL or "Secure Socket Layer" technology which encrypts your order information to avoid the decoding of your information by anyone other than SupplyHouse.
At SupplyHouse.com, we are committed to protecting your privacy. This means that we will not distribute, sell or rent your name or personal information about you to any third party without your permission.
For complete safe shopping information, go here.
Your privacy is of great concern to SupplyHouse. We use the information you provide to process your order and to ensure that your experience on our site is as enjoyable and efficient as possible. Our primary focus and greatest concern is you, our customer. We respect your privacy and therefore do not sell, rent or loan any of your personal information to any third party.
We are committed to protecting your privacy. We use the information that we collect about you to process your orders and to provide a personalized shopping environment. When you purchase products from SupplyHouse.com or register for any SupplyHouse.com services, we automatically place you on our list to receive e-mail updates about special offers, new products, and new services.
A credit card Identification Number is an added safeguard for your credit card purchases. Depending on the type of credit card you use, it is the 3- or 4-digit number printed on the back or front of your credit card. For most online credit card purchases from us, the Identification Number is required information.
MasterCard: Your identification number is the 3-digit number found on the back of your credit card near the signature panel.
Visa: Your identification number is the 3-digit number found on the back of your credit card near the signature panel.
American Express: Your identification number is the 4-digit number found on the far right on the front of your credit card.
Horse power is a unit of power, with one horse power equalling 745.7 watts.
Voltage, or volts, is a measurement of the difference between two electric fields (in heating terms, the difference between the Earth's electrical field and the electricity running through your wires).
Amperage, or amps, refers to the amount of electricity flowing through the wires.
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 15 reviews)
of respondents would recommend this to a friend.
Most Liked Positive Review
Easy to install, easy to operate
I am a super at a luxury coop on the upper east side of manhattan. One apartment on the ph floor was not getting sufficient cooling due to poor chill water circulation through the...Read complete review
I am a super at a luxury coop on the upper east side of manhattan. One apartment on the ph floor was not getting sufficient cooling due to poor chill water circulation through the convector unit in the apartment. I've installed pumps before but they effected the apartments below (no control over pump speed etc.) so they were removed. This pump allows me to dial the circulation in (it has 6 settings) so as not to affect other units in the building. The plumber installed it in a few hours, and it plugs directly into a 110 volt wall outlet.
Most Liked Negative Review
Ehh External control would make better
Simple, quite, and efficient are certainly all positive attributes of this pump. it would be better if it were possible to control speed via a control panel, external input, temperature control, delta-T...Read complete review
Simple, quite, and efficient are certainly all positive attributes of this pump. it would be better if it were possible to control speed via a control panel, external input, temperature control, delta-T control, or anything similar it would be a great pump. The auto mode does indeed work if you have multiple circuits connected to the pump that are opening or closing. however, if the pump is on a fixed circuit i give the auto mode low marks. picking a fixed flow or pressure gives more predictable results.
Reviewed by 15 customers
Displaying reviews 1-10
Back to top
Previous | Next »
So far so good
Comments about ALPHA 15-55 F/LC Cast Iron Circulator Pump:
It's not heating season yet, but I have installed the Alpha. I've tested it and ran it in all of its modes. The smart mode seems to be pretty neat. It gradually ramps up when a zone valve opens until it gets to where it's happy and cruises along until the valve closes. The pump came with to gaskets and a flow check valve. Seems like a pretty nice pump.
Was this review helpful? Yes / No
- You may also flag this review
from Long Island, NY
Put it on high to purge the lines after swapping out, then put it on autoadapt. 6watts in idle, 9-14 watts at 1gpm 1 zone. 12-16 watts at 2 gpm 2 zones. Couldnt ask for more
Bottom Line Yes, I would recommend this to a friend
Alpha Pump for radiant heat
from Bryson City,NC
Had one on a 6 zone radiant floor heating system and found it was operating at the edge of its performance. It runs quietly, has options -3 speeds plus the self regulating feature which was ideal to balance the floor loops and zones. I am putting a pump in parallel to pick up a little flow when all 6 zones are on.
(1 of 1 customers found this review helpful)
Great replacement for Taco 007
By Off grid user
from Upstate New York
Easily replaced 007 circulaters between isolation flanges without having to re-plumb. Much quieter. As I'm "off grid" producing my own electricity with solar and wind, I'm stingy with every watt. The Alphas use less than a third (I measured both)than the 007 with the same GPM (I measured both).Delivery was actually one day sooner than "promised". Great pump - great service - competitive price.
from White Salmon WA
These pumps are great, I use them almost exclusively now. Set it on auto and it will match most any radiant load be it one small bath or the whole house. The GPM reading on the display is also an excelent troubleshooting feature, just one glance and you know there's flow. Oh, yeah they save about 60% on power consumption. The price has been coming down also. What else can I say, they rock!
By Reasonable Person
(1 of 2 customers found this review helpful)
ECM circulators are the way to go
This is a good ECM circulator offering three speed control and three pressure controls as well as their auto control. The average rating is when compared to other ECM pumps, not when compared to average circulators. I would have scored the pump 5 stars if it offered temperature control or an external analog speed control.
(0 of 1 customers found this review helpful)
Neat concept, love the digital display!
from Town of Ottawa, near Waukesha, WI
Hydronic circulator.Digital display, variable speed in auto mode, plus ramps up on demand.
Excellent and Efficient
from Newton, MA
I purchased the Grundfos Alpha to replace three circulator zones on my existing 20 year-old heating system, after living with it for two seasons. Not that our electrical bills are so high. They are, but you try to reduce where you can and the circulators were 20 years old, running a bit rough it seemed. I replaced the circulators with Taco Zone Sentry zone valves connected via a Taco ZVC controller. The Alpha installs like any other circulator except this one has a plug, which is perfect. (I set up my circulators to switched receptacles.)As the zone valves open and close, this remarkable circulator senses the energy consumption coorelated to circulator performance. When valves close, the circulator slows down. As they open, it speeds up. An integral meter tells you power consumption and, not yet tested, GPM.I have not used this under heating conditions, but rather just ran it cold to balance the system to get it ready for the coming heating season.Using a Kill-A-Watt meter, I verified the on-board meter and it checks out. The three circulators I replaced consumed about 65 Watts each while the Alpha draws about 15 Watts when fully ramped up with water at summer temperatures. When fired up, the power consumption should drop even further, slightly, due to lower viscosity of the water.At my electrical rates (about 18 cents per kWH), I expect to save 180 Watts per hour of operation. This may not sound like much, but over 2000 hours of heating use per year, the circulator will pay for itself in about a year and a half over a single, conventional circulator.
I love the readout and flexibility of this pump. Knowing the GPM and the power usage was very useful in setting up my wood boiler and gauging it's performance. I would like more information on the "adapt" setting that adjusts to system needs. What criteria does it use? The "adapt" setting tended to run too slow for my wood boiler. It likes a higher flow to keep the temperature more even in the boiler tank to prevent creasote formation so I'm using the a speed control setting.The first pump they sent was defective but PEX supply was very good at sending a replacement.
Do you have questions about this product?
get answers from real customers and in-house experts with AnswerBox.
Know the answer? Answer this question
Do you have a question about this product?
Subscribe to our Channel
Like Us on Facebook
Visit Our Blog
At SupplyHouse.com, our goal is to bring you the highest quality plumbing, heating and HVAC supplies at competitive prices. Our product catalog includes PEX Plumbing Supplies, Radiant Heat Supplies, VisionPro Honeywell Thermostats, Taco pumps and mini-split air conditioners. If there are items you are looking for but can't find on our website, please contact our Customer Service Representatives & we will do our best to find what you need.
© 2014 SupplyHouse.com