HEAT-FLO SSL-30D
HEAT-FLO SSL-30D is in the DOE listing as of Oct 26, 2026.
It has a labeled size of 30 gallons, a certified storage volume of 28 gallons, a certified UEF of 0.92, and a certified first-hour rating of 48 gallons of hot water.
- Electric storage water heater
- 1 listed model
ENERGY STAR certification does not cover this type of water heater.
Certified figures
- Storage volume
- 28gallons
- UEF
- 0.92Uniform energy factor
- First-hour rating
- 48gallonsHot water in the first hour
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Change your hourCertified figures by listed model
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| SSL-30D | 28 | 0.92 | 48 | 98% | Low |
UEF is the uniform energy factor. A dash means the model has no such figure.
It holds 28 gallons in the test, 2 gallons less than its 30-gallon sold size. Starting full, it gives 48 gallons of hot water in its first hour of use. That is 20 gallons more than its tank holds, since it reheats during the hour. Among 477 electric storage models, 344 have a higher first-hour rating. Among electric storage models, the median first-hour rating is 55 gallons.
In tests, 92% of the energy it uses ends up as hot water (UEF 0.92). Its test ran at the low level of daily hot water use. Among 157 electric storage models on its draw pattern, 12 have a higher UEF. On its draw pattern, its UEF is also the median electric storage UEF. Of the energy spent to reheat water, 98% goes into it (its recovery efficiency).
- Every HEAT-FLO basic model
- Every 30-gallon electric storage water heater
- Every electric storage water heater
Not covered
- Advertised figures. We have none on file for this model.