Equipment Failure Rates: Water Heater
H30-110 to H30-130
Equipment failure rates, MTBF, MTTR, and downtime statistics for electrical and mechanical plant equipment. Primary data from the USACE PREP reliability database (IEEE Std 3006.8-2018 Table 2), covering ~280 equipment classes. Supplemental data from IEEE motor and transformer surveys.
| equipment type | class code | description | failure rate per year (failures/year) | failures (count) | mdt hours (h) | mtbf hours (h) | mttm hours (h) | mttr hours (h) | standard | survey | unit years (unit-years) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Water Heater | H30-110 | Water heater, domestic hot | 0.019843 | 19 | 29.64 | 441,457 | 0.82 | 9.64 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 957.5 |
| Water Heater | H30-130 | Water heater, domestic hot | 0.056516 | 25 | 9.11 | 155,000 | 1.35 | 3.53 | IEEE Std 3006.8-2018 Table 2 | USACE PREP | 442.4 |
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