HTP PH100-55****
HTP PH100-55**** is in the DOE listing as of Oct 26, 2026 and is in the ENERGY STAR list as of Oct 26, 2026.
It has a labeled size of 55 gallons, a certified storage volume of 53 gallons, a certified UEF of 0.89, and a certified first-hour rating of 187 gallons of hot water.
- Gas storage water heater
- 1 listed model
Certified figures
- Storage volume
- 53gallons
- UEF
- 0.89Uniform energy factor
- First-hour rating
- 187gallonsHot water in the first hour
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| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency | Draw pattern |
|---|---|---|---|---|---|
| PH100-55**** | 53 | 0.89 | 187 | 99% | — |
UEF is the uniform energy factor. A dash means the model has no such figure.
ENERGY STAR certified models
| Model number | Storage volume (gal) | UEF | First-hour rating (gal) | Recovery efficiency |
|---|---|---|---|---|
| PH100-55**** | 53 | 0.89 | 187 | 99% |
It holds 53 gallons in the test, 2 gallons less than its 55-gallon sold size. It delivers 187 gallons of hot water in the test's first hour. That is 134 gallons more than its tank holds, since it reheats during the hour. Of 763 gas storage models, 5 give more hot water in the first hour. The median gas storage model gives 78 gallons in its first hour.
The single model number sold under it is ENERGY STAR certified. In tests, 89% of the energy it uses ends up as hot water (UEF 0.89). Of the energy spent to reheat water, 99% goes into it (its recovery efficiency).
It may qualify for 3 rebate programs in 3 states. Another one rebate program may accept it if it meets their other terms.
Rebates
| Program | State | Status | Program page |
|---|---|---|---|
| Colorado Springs Utilities Water heater rebate (gas storage, gas tankless) | CO | May qualify | Its own page |
| Nicor Gas Energy Efficiency Rebates for Your Home (gas storage) | IL | May qualify if it meets the other terms | Its own page |
| DTE Energy Water Heaters (gas storage, gas tankless) | MI | May qualify | Its own page |
| Avista Home and small commercial: HVAC and water heating incentives (gas storage) | WA | May qualify | Its own page |
Programs change their terms. Check the program's own page before you buy.
- Every HTP basic model
- Every 50-gallon gas storage water heater
- Every gas storage water heater
- The most-searched gas storage models side by side
Not covered
- Advertised figures. We have none on file for this model.