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Residential / Multi-Family Sizing Tool

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USAGE DETAILS

Daily HW Use Per Person, Gal.
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ASHRAE uses 15.5 gal/person/day but we suggest using 20 g/p/d.

Number of Residents

For a single-family residence, use the theoretical maximum occupancy of the dwelling rather than actual occupancy to ensure sufficient hot water in all scenarios.

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CALCULATED DAILY USAGE

Peak Period Usage (%)
55%
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DHW Usage (Gal/Day)
Equivalent at SANCO Temp
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Required Storage Capacity (Gal)
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SIZING RECOMMENDATION

Number of Heat Pumps
Heat Pump Output (Gal/Hr)
Tank Recommendation
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Heat Pump Daily Run Time (Hrs)
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* This sizing tool is intended to offer an accurate estimate of the number of heat pumps and storage capacity required for a given application. This estimate depends upon accurate input values.
  ECO₂ Systems LLC is not responsible for inaccurate sizing obtained with incorrect inputs.
  If you have any questions about this sizing tool, or if you need help with sizing, please contact us.

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