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Author Topic: Taco vs Grundfos  (Read 19881 times)

Ridgekid

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Taco vs Grundfos
« on: January 06, 2012, 01:59:14 PM »

I'm getting closer to replacing my Taco 009 and installing my Grundfos Alpha pump. The purpose of this post is for those interested.

The new pump arrived yesterday. There is a directional flow on the pump casing and if mounted out of the box I would of had to stand on my head to read the display. The four cap screws were removed and the pump head was rotated 180*

My Kill a Watt showed up today. (Thanks to RSI's suggestion on getting one) I tested the Taco 009 and got the following results:
122V
1.3 amps
150 watts
60 hz

Based on that information I'm using about 120 KwH a month just to operate the pump. The Grundfos should be about 30 KwH a month MAX.

I want to install this in the morning, so I have time to monitor it before night time. Don't want to wake up to a cold house. Just want to make sure that the adaptive control works on my heating arrangement. I should have an update by Saturday afternoon.



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Scott7m

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Re: Taco vs Grundfos
« Reply #1 on: January 06, 2012, 02:10:05 PM »

Thought you had a taco007?
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Scott7m

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Re: Taco vs Grundfos
« Reply #2 on: January 06, 2012, 02:10:41 PM »

This has me thinking, I'm going out to test mine now
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Ridgekid

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Re: Taco vs Grundfos
« Reply #3 on: January 06, 2012, 02:14:29 PM »

So did I until I looked at the nameplate.
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Scott7m

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Re: Taco vs Grundfos
« Reply #4 on: January 06, 2012, 02:16:09 PM »

Strange to use a 009 on a furnace I thought. 


But anyways, I just tested my pump, it was pulling 97 watts, at my electric rate that equals $9.23/month
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Ridgekid

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Re: Taco vs Grundfos
« Reply #5 on: January 06, 2012, 02:24:38 PM »

$9.84/month for the taco at my electric rate. $2.46 MAX with the Grundfos (If it works)

Why do you think using a Taco 009 is strange? Keep in mind I'm not a pump expert.
« Last Edit: January 06, 2012, 06:06:52 PM by Ridgekid »
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fireboss

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Re: Taco vs Grundfos
« Reply #6 on: January 06, 2012, 02:33:31 PM »

I think that cb recommends the 009, i just hook up my friends 6048 and thats what the dealer said to use his stove is 200' away from house
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Scott7m

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Re: Taco vs Grundfos
« Reply #7 on: January 06, 2012, 02:35:11 PM »

There was some flow charts on here somewhere, but the 007 and 011 were always what most folks used with a stove.  Ill look for those charts but off the top of my head I don't remember exactly why the others were better suited.
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RSI

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Re: Taco vs Grundfos
« Reply #8 on: January 06, 2012, 03:49:29 PM »

I think it is a really strange pump to use for OWBs too but CB must have some reason to be selling them. I sure hope they don't just go by the number on it and assume a bigger number means more water flow.

Did you get the white or the gray Kill a watt? Does it have a PF rating?

Do you have a valve after the pump? Can you slowly close it and see if it makes any difference on the watts it is using? Just curious if it will change on that pump.
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Ridgekid

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Re: Taco vs Grundfos
« Reply #9 on: January 06, 2012, 04:01:12 PM »

The kill a watt is a model P4400.01. It does have a pf button. It also has a P3 pn the front next to kill a watt.

My pump has a inlet and outlet valve. Should make it easy to replace the pump. If you want me to run that test I can. Give me a few minutes for the results.

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RSI

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Re: Taco vs Grundfos
« Reply #10 on: January 06, 2012, 04:05:44 PM »

What it the PF number it is running at? When you get the new pump on post that number for it too.
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Ridgekid

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Re: Taco vs Grundfos
« Reply #11 on: January 06, 2012, 04:47:38 PM »

Geez RSI.  I'll have to go back to check PF.

With the discharge valve closed it was only 10 watts less then with it open.

Anything else you would like me to check?  ( I don't mind).
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Ridgekid

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Re: Taco vs Grundfos
« Reply #12 on: January 06, 2012, 05:04:26 PM »

PF with valve open 0.94. Valve closed. 0.92.
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Ridgekid

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Re: Taco vs Grundfos
« Reply #13 on: January 06, 2012, 06:31:33 PM »

What should I do to the taco before I put it on the shelf?  It will be our backup pump. Store it with the pump flanges facing up and down or side to side?  Or Does it matter?  Maybe blow it out with compressed air so it's dry? 
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newmanab

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Re: Taco vs Grundfos
« Reply #14 on: January 06, 2012, 06:51:36 PM »

Pics please :pic:
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