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Author Topic: new pumps  (Read 6453 times)

mw10737

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Re: new pumps
« Reply #15 on: September 23, 2012, 07:20:29 AM »

Yes RSI, i did run just one of the 26-99 and it worked good, but after i added the 2nd 26-99 the wood consumption dropped.

 Scott... totally understand what your saying, i think water is returning so quickly to boiler that my delta is so low now that it stays within my set 10 degree differental and not requiring the stove to run as much.  i honestly didnt think it would make this much diffirence adding both 26-99 pumps,  but it its so far.   

Also when there is no demand for water there is no delta... it just sits and loops at same temp  return and feed both temp.

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Empyre Deluxe 250( NON-GASSER)
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RSI

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Re: new pumps
« Reply #16 on: September 23, 2012, 12:16:02 PM »

The only thing that makes sense is if the cold water is returning close to the temperature sensor and causes the boiler to cycle a lot more than it should and possible overheat the water in the rest of the boiler.

If just adding the extra pump made the wood usage go down that much you would be better off putting small pump like a 15-58 that just circulated the water in the boiler. (just pumping from supply to return connections at the boiler) It will move a lot more water that the extra 26-99 is pumping through the house loop.
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Scott7m

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Re: new pumps
« Reply #17 on: September 23, 2012, 01:22:57 PM »

The only thing that makes sense is if the cold water is returning close to the temperature sensor and causes the boiler to cycle a lot more than it should and possible overheat the water in the rest of the boiler.

If just adding the extra pump made the wood usage go down that much you would be better off putting small pump like a 15-58 that just circulated the water in the boiler. (just pumping from supply to return connections at the boiler) It will move a lot more water that the extra 26-99 is pumping through the house loop.
:post:

That could be it, but the sensor ain't near the return so I donno.
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mw10737

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Re: new pumps
« Reply #18 on: September 23, 2012, 01:43:11 PM »

Sensor is on opposite end of boiler tank..up.behind control panel if I remember correctly. 
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Empyre Deluxe 250( NON-GASSER)
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2007 GMC Crew Cab Duramax
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mw10737

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Re: new pumps
« Reply #19 on: September 23, 2012, 01:49:45 PM »

 I don't.think.it's a false reading on.boiler because my temp probes at furnace and at entry to house are matching boiler control temps .that tells me basically that I'm not getting a false reading

Been 4 days since I added any wood.. and its been in the upper 20s. Low 30s at night and 50-60s during the day... before I was filling it ever 30 hrs at this temp outside
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Empyre Deluxe 250( NON-GASSER)
MS660 Magnum-36"
MS271-20"
018C-14"
2007 GMC Crew Cab Duramax
Plainfield, Iowa

tanner

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Re: new pumps
« Reply #20 on: September 23, 2012, 08:03:01 PM »

I had a question about a pump i figerd sence every body was talking about one i figerd id ask.  I have a 4135 legend gona have abt 65 ft of 1inc pex i was wondering what size and brand of pump i would need. 
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Scott7m

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Re: new pumps
« Reply #21 on: September 23, 2012, 08:11:29 PM »

I usually install wasser 3 speed pumps to give folks some flexibility
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RSI

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Re: new pumps
« Reply #22 on: September 23, 2012, 08:14:04 PM »

I had a question about a pump i figerd sence every body was talking about one i figerd id ask.  I have a 4135 legend gona have abt 65 ft of 1inc pex i was wondering what size and brand of pump i would need.
My favorite options for pumps are Grundfos 15-58 for smaller pumps and B&G PL36 for larger pumps.
It sounds like the 15-58 would work for you with only that much pipe unless you have a lot of restrictions in the house.
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Scott7m

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Re: new pumps
« Reply #23 on: September 23, 2012, 08:27:54 PM »

I had a question about a pump i figerd sence every body was talking about one i figerd id ask.  I have a 4135 legend gona have abt 65 ft of 1inc pex i was wondering what size and brand of pump i would need.
My favorite options for pumps are Grundfos 15-58 for smaller pumps and B&G PL36 for larger pumps.
It sounds like the 15-58 would work for you with only that much pipe unless you have a lot of restrictions in the house.

Love the 15-58 but hate selling one to someone who's project I've not seen, I sold an 007 to a guy last year who was only going 45 feet, it was straight over a steep hillto his boiler and then he has 1/2 pex inside lol sheww
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RSI

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Re: new pumps
« Reply #24 on: September 23, 2012, 08:39:13 PM »

An 007 only can do about 10' of head pressure and a 15-58 can do 19 feet.  You can always add a second 15-58 if it is too small and it is equivalent to a large pump.
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RSI

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Re: new pumps
« Reply #25 on: September 24, 2012, 07:38:21 AM »

RSI:  Here are the specs

Three Speed High Performance Circulating Pump

•Removable Integrated Check Valve
•Built-in motor protection for longer life
•Quiet and low power consumption
•Prevents thermal siphoning
•Pump Housing: Cast Iron
•Voltage: 115 V, 60 HZ. Power: 100/70/55w. Motor: 2 Pole, Single Phase
•Min Fluid Temp: 36° F (2° C). Max Fluid Temp: 230° F (110° C). Max Flow: 17.9 (U.S. GPM). Max Head: 19 feet (head). Max Working Pressure: 145 PSI
•Insulation Class: H 356° F (180° C)


Vendor: Stiebel Eltron

I  just noticed this and apparently was replying from my phone. I missed the bottom line before. It is a chinese copy of a Grundfos 15-58 but should move pretty much the same amount of water.
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