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Minimum distace of return form furnace
For years I've been referencing the "10 foot" rule for the separation of returns from furnaces, noting the importance of properly sealed filter openings and the like - but now discover that I really can't cite the sources for such requirement or their methods of application (for example, to what point should the return distance measurement be made - the draft hood?)
Does anyone have a link to a really through discussion of these issue, including the relevant code cites or manufacturer's recommendations?
- Thanks
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