Skip to content

Commercial water heatersENERGY STAR certified

Velocity Boiler Works PHX1250V

1,250 kBtu/h gas tankless water heater.

Input rate

1,250 kBtu/h

Storage

10 gal

Thermal efficiency

0.98

Fuel

Gas

Of 207 certified gas tankless commercial water heaters, 9 have a higher thermal efficiency than the PHX1250V (0.98).

Maker
Velocity Boiler Works
Model
PHX1250V
Type
Gas Tankless
Fuel
Gas
Storage
10 gal
Thermal efficiency
0.98
Input rate
1,250 kBtu/h
Vent
Direct Vent
On the market since
Sep 2025
ENERGY STAR certified
28 Aug 2025

Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 4497562, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the PHX1250V

Certified commercial water heaters from other makers, same color class, within 20% of its speed.

ModelTypeFuelStorageInput rate
Lochinvar AWH1250(N,L)Gas TanklessGas, Propane12 gal1,250 kBtu/h
A. O. Smith PWH1250(N,L)(P)(-CAN)Gas TanklessGas, Propane12 gal1,250 kBtu/h
THERMAL SOLUTIONS AMPW1250Gas TanklessGas, Propane12 gal1,250 kBtu/h
Bryan Steam, LLC BFITW1250Gas TanklessGas, Propane12 gal1,250 kBtu/h
THERMAL SOLUTIONS AMP1250VGas TanklessGas10 gal1,250 kBtu/h
THERMAL SOLUTIONS AMP1250V-OGas TanklessGas10 gal1,250 kBtu/h

Velocity Boiler Works

More Velocity Boiler Works commercial water heaters

ModelTypeFuelStorageInput rate
PHXW400Gas TanklessGas, Propane4 gal399 kBtu/h
PHXW500Gas TanklessGas, Propane5 gal500 kBtu/h
PHXW650Gas TanklessGas, Propane6 gal650 kBtu/h
PHXW800Gas TanklessGas, Propane7 gal800 kBtu/h
PHXW1000LGas TanklessGas, Propane9 gal999 kBtu/h
PHX1000C-OGas TanklessGas, Propane9 gal999 kBtu/h
PHX800C-OGas TanklessGas, Propane7 gal800 kBtu/h
PHX400C-OGas TanklessGas, Propane4 gal399 kBtu/h

All Velocity Boiler Works commercial water heaters