---
title: "PowerStar Technical Data and Sizing"
url: https://tanklesswaterheatersdirect.com/shop/tanklesswaterheaters/powerstar/powerstarspecs.htm
description: "PowerStar's superior design and construction is backed by a 1 year warranty on parts and a 10 year warranty on the heat exchanger."
---

# PowerStar Technical Data and Sizing

Specification data recorded on this site for PowerStar Technical Data and Sizing.

## PowerStar Electric Tankless Water Heater Flow Rates

| Model | 50F deg Rise | 60F deg Rise | 70F deg Rise |
|---|---|---|---|
| PS19T | 2.6 gpm | 2.1 gpm | 1.85 gpm |
| PS28T | 3.8 gpm | 3.2 gpm | 2.7 gpm |

Flow rates calculated at 240 volts, lower voltage input will reduce temperature rise. For optimal performance of both units, use one major water source at a time. Note: PS19T would have a slow bathtub or washing machine fill time.

## PowerStar Sizing Chart

| Model | Capacity |
|---|---|
| PS 19T | Provides 2.1 gallons per minute for water usage at 115°f: sink, dishwasher (not simultaneously)   Provides 2.6 gallons per minute for water usage at 105°f: shower, laundry, bathtub (fills in approx. 10 minutes) |
| PS 28T | Provides 3.2 gallons per minute for water usage at 115°f: 2 sinks at once, dishwasher   Provides 3.8 gallons per minute for water usage at 105°f: 2 sinks at once or 1 shower, bathtub fills in about 7 minutes |

## Specifications

| Model | Volts | Kilowatts | Amps | Wire Size | Weight | Dimensions |
|---|---|---|---|---|---|---|
| PS19T | 240v   208v | 19 kw   14.25kw | 80 (2 x 40a)   69 (2 x 40a) | 8 ga. (4 connectors)   8 ga. (4 connectors) | 8lbs.   8lbs. | 9" x 10" x 3.5"   9" x 10" x 3.5" |
| PS28T | 240v   208v | 28 kw   21kw | 120 (3 x 40a)   101 (3 x 40a) | 8 ga. (6 connectors)   8 ga. (6 connectors) | 11 lbs.   11 lbs. | 12" x 12" x 3.5"   12" x 12" x 3.5" |

## 10 Year Warranty

PowerStar's superior design and construction is backed by a 1 year warranty on parts and a 10 year warranty on the heat exchanger.

## PowerStar Features

- 99% efficiency rating – maximum efficiency
- Glass reinforced plastic heat exchanger
- Special plastic prevents leaking and scale build up on the element
- No temperature/pressure relief valve necessary (check local codes)
- Electronic flow switch
- Thermostatic electronic control
- .8 gpm activation rate
- Thermal cut out for safety
- 10 year warranty
- No standby heat loss... saves on energy
- Mounts almost anywhere. Saves installation costs
- Electric Convenience