Indoor Wood Boiler Operation Help Needed!
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Another question. Do I have it piped correctly? I'm bringing return water into the top and supply out of the two lower ports in the back.
That's your problem--or a big part of it. Return water goes down below--supply comes right out of the top.
This might just be the whole problem. I flipped my pumps over when I got home from work and re lit a fire and it's keeping the water at 160. Thanks for all the replies and advice!
I'm glad you're making progress. There are probably a few more modifications you can make that will make it work even better.
As others have pointed out, you should find a way to warm the return water before it hits the boiler to avoid thermal shock, which will cause it to corrode out prematurely. The way I do it is pretty simple--I just pump water from the top of the boiler (supply) into the return. I also have an aquastat on the return so that the main circulator doesn't kick on until the temp hits 160. This not only warms the return water, but it keeps it warm by not allowing water to circulate if it's below 160 degrees. You just need to tee off at both ends and add a circulator like a Taco 007--preferably one with a built in flow check.
Let me know if you want more information; I can probably post a photo or diagram of what I'm talking about.
As others have pointed out, you should find a way to warm the return water before it hits the boiler to avoid thermal shock, which will cause it to corrode out prematurely. The way I do it is pretty simple--I just pump water from the top of the boiler (supply) into the return. I also have an aquastat on the return so that the main circulator doesn't kick on until the temp hits 160. This not only warms the return water, but it keeps it warm by not allowing water to circulate if it's below 160 degrees. You just need to tee off at both ends and add a circulator like a Taco 007--preferably one with a built in flow check.
Let me know if you want more information; I can probably post a photo or diagram of what I'm talking about.
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