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Frequently Asked Questions
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The economizer is used to recover heat from an otherwise wasted exhaust stream and use it to heat a liquid for another process. Heating a washer or bath, domestic or cleanup water, or preheating something else are all places where the heat can be used.
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Carbon steel housing works well for drier exhausts. Aluminum is offered as an alternative for wetter exhausts, contact us for more information.
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Yes, we do. We offer 4 sizes, and the capacities are listed just to the left.
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This unit is not set up for condensing, so it needs to stay above the dew point temperature of the exhaust. The dewpoint temperature will depend on how wet the exhaust is. For something like a paint cure oven, which is a dry process, dewpoints can be as low as 140 degrees F. We have successfully run temperatures down to 180 deg F with no issues on these ovens. However, a wet exhaust (say from a dryer) will have a higher dewpoint, which could be as high as 212 deg F.
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Our base model uses a copper tubed, aluminum finned heat exchanger. The copper tube works well for many uses, including any water preheating and thermal fluid loops. Copper has good chemical resistance except for low pH acidic fluids. Even here, we have successfully used copper to a 5.5 pH. Lower than this, a stainless steel piped heat exchanger is probably warranted.
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We designed and tested units to eliminate gross levels of over-design that are present in most competing economizers. Over-design costs money without adding any usable value.