The Alkota 8251 is a stationary electric-motor hot water pressure washer rated at 8 GPM and 2500 PSI. A 15 HP, 230V, 3-phase motor drives the pump and calls for a 40 amp supply. The burner runs on LP or natural gas and is rated at 660,000 BTU. It measures 70 x 33 x 65 in (L x W x H) and weighs 1385 lbs.
The Gas Fired Series is Alkota’s stationary, cabinet-style hot water line. An electric motor drives a belt-driven triplex pump and a natural gas or LP burner heats the water to 180-200 °F. The 8251 is meant to be installed in one place and plumbed to remote wash stations by pipe or hose, which keeps the machine out of the wash area.
Features
- Cabinet-style stationary design for central installation
- Natural gas or LP fired, 180-200 °F water temperature
- Belt-driven triplex ceramic plunger pump with oil bath crankcase
- Schedule 80 heating coil with hydro-insulated cold water wrap, backed by Alkota’s 7-year coil warranty
- Soft Damping System cushions the coil, pump and high-pressure components
- Stainless steel float tank
- High-pressure, precisely metered detergent application
- UL and CSA certification available
8251 Specifications
| Flow Rate | 8 GPM |
|---|---|
| Pressure | 2500 PSI |
| Steam Capacity | 240 gal/h |
| Motor Voltage | 230 V |
| Phase | 3 |
| Amp Requirement | 40 amp |
| Motor Power | 15 HP |
| Fuel Source | LP or NG |
| Gas Consumption | LP: 7.25 gal/h or NG: 630 ft³/h |
| BTU Rating | 660,000 BTU |
| Pump Style | Oil Bath Crankcase, Triplex Ceramic Plunger |
| Coil Type | Horizontal Schedule 80 |
| Coil Construction Type | Hydro insulated cold water wrap |
| Coil Length | 399 ft |
| Coil Inner Diameter | 1/2 in |
| Float Tank | Standard |
| Float Tank Construction Material | Stainless Steel |
| Optional Parts/Features | Temperature Control |
| Chemical Features | High Pressure, Precise Metered |
| Manufacturing Notes | Motor/Voltage: Special voltages on request. Also available as oil fired model |
| Exhaust Stack | 12 in |
| Length | 70 in |
| Width | 33 in |
| Height | 65 in |
| Weight | 1385 lbs |
H2O Power Equipment sells and services Alkota equipment from Commerce City and Colorado Springs, Colorado. Request a quote for pricing, lead time, and voltage or fuel options.

