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Plumbing / Re: max water temp going into concrete slab?

« on: April 26, 2011, 08:40:50 PM »

Thanks for the input. This seems like a greatest resource on the web! Now I have spent over $2000 on propane last year.  I am considering an outdoor woodstove, due to the free firewood I have access to cutting. I am just wondering if I would be better off throttling the boiler operating temp down enough without a tempering valve. I'm just starting to draw up a diagram/schematic

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Plumbing / max water temp going into concrete slab?

« on: April 26, 2011, 06:20:03 PM »

Hi, I am wondering what the max temps that are used in hydronic heating in a concrete slab. I assume I will need a tempering (mixing) valve from the woodboiler itself.