Indirect for boiler return water


Old 12-11-13, 05:43 AM
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Indirect for boiler return water

Is there a manufactory that makes an indirect especially for condensing boilers to lower the return water temperature down into the condensing range of below 130f. The temperature Is now i35f, with the outside temperature at 13f , the system is controlled with out door reset so the return will very with out side temperature.
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Old 12-11-13, 08:31 AM
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Specially for? I don't see why you would need something 'specially made for'...

Spending big bucks on an indirect for this purpose doesn't make a lot of sense to me as far as the cost vs benefit goes. How far should one go to gain an extra percent or two in AFUE? Is it worth the expense?

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