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The Water Cooler
General Discussion
HVAC problem (undersized unit)
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<blockquote data-quote="NikatKimber" data-source="post: 2776448" data-attributes="member: 423"><p>Neither TJay nor I are selling anything either. </p><p></p><p>I know myself, although I can't speak for TJay, that I am NOT saying his unit is fine, but that there could be other causes to the high bill.</p><p></p><p>"Rules of thumb" are just that: not hard and fast. Accurately sizing an A/C unit depends on multiple things: 1) heat load (external surface area, appliances, window area and quality, how many people/animals, how frequently doors will be opened) 2) thermal efficiency of structure (insulation, window quality) 3) efficiency of unit</p><p></p><p>Not being familiar with the HVAC industry, I would imagine an accurate "sizing" of the A/C system is not regularly done on residential units, as this is expensive, and can change from the original owner. </p><p></p><p>Simply put, if the 3ton vs 3.5ton units are the only (approximate) difference from your house to your neighbors', then that .5ton undersize should not cause your bill to be double theirs.</p></blockquote><p></p>
[QUOTE="NikatKimber, post: 2776448, member: 423"] Neither TJay nor I are selling anything either. I know myself, although I can't speak for TJay, that I am NOT saying his unit is fine, but that there could be other causes to the high bill. "Rules of thumb" are just that: not hard and fast. Accurately sizing an A/C unit depends on multiple things: 1) heat load (external surface area, appliances, window area and quality, how many people/animals, how frequently doors will be opened) 2) thermal efficiency of structure (insulation, window quality) 3) efficiency of unit Not being familiar with the HVAC industry, I would imagine an accurate "sizing" of the A/C system is not regularly done on residential units, as this is expensive, and can change from the original owner. Simply put, if the 3ton vs 3.5ton units are the only (approximate) difference from your house to your neighbors', then that .5ton undersize should not cause your bill to be double theirs. [/QUOTE]
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HVAC problem (undersized unit)
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