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[Bluegrass Wood Burner]

I'm gonna replace the pump myself when it arrives middle of week. Is there anything I need to know about doing my first pump install? Also will the check valve be easy to remove?

[E Yoder]

Yank the check out with a pliers. Not difficult.
Close valves on supply and return, unbolt, put o rings on the new one, clean the flanges off, be sure to pump the right direction, bolt it up, open valves. Not hard at all.

[Bluegrass Wood Burner]

During the idle season back in June I re wrapped all the visible pipe coming out of ground to the ports on back of the boiler. My question is should I have wrapped the pump. I'm wandering if the pump may have gotten too hot being wrapped so tight. I wrapped it tight all up and down. Could that pump have overheated to the pump it burned the motor out on it? Just don't want to make same mistake on my new pump if that's the case.

[shepherd boy]

In most cases I'd say no. To burn out an electric motor it needs to go over 300 degrees to melt wires and winding. The pump is cooled by the water even if it is 200 degrees. However I have seen more than one Wilo pump electrical connection box deteriorate in a hot environment like the back of a stove. Three speed have really bad  failure rate. We don't use them. Use a name brand pump and you should be good in my opinion. Others may have a different view.

[Bluegrass Wood Burner]

I ordered the Grundfos 26/99 FC. Supposed to arrive here Wednesday.

[E Yoder]

But I wouldn't wrap the pump just to keep the electrical connections a smidge cooler.

[tinfoilhat2020]

i ordered the same pump! expecting it tomorrow

[wreckit87]

I shouldn't have told you where to find those pumps cheap lol I tried to order another 5 yesterday and they're all sold out!  NRF-36 it is for the next couple I guess. I just replaced a Taco and a B&G on Friday that the guy had wrapped up with fiberglass, both of them were fried. I wouldn't wrap them I guess. Water does cool them but so does the surrounding air

[Bluegrass Wood Burner]

After I ordered it I found them even cheaper at Dobbs Brothers in Missouri @ 135.00 free shipping. Google them and take advantage of it.

[E Yoder]

That's a steal for a 26-99. Wow.

[Bluegrass Wood Burner]

Folks I got the new pump and installed about an hour ago. Couldn't be happier. It's working great and my house is steadily warming up. I am noticing warmer return temps with the higher gpms.. From 8-20 makes a big difference. Thanks to all who guided me on this.

[E Yoder]

 

[aarmga]

In the case of a leak it would still flow back to the furnace in the return line and empty the attic. There is no reason for a check in the primary pump. I don't like them in a pump just for the reason it's easy to air lock a pump. If you need a check to prevent 'ghost flow' you can put it down flow from the pump even on the return line and give some room for air to pass through the pump without locking in the pump. Anytime a line empties it must be replaced with air. If there is no place to get air water will stay in the pipe no matter how high it is.

  Got a cummins right now that empties it's fuel back to the tank overnight and has to pump back up to start in the morning. I know there is a small leak somewhere I need to find.

The little o-ring on top of the fuel filter cap is almost always the culprit.