A.O. Smith HPI-40C1 Hybrid Water Heater, 40 gal

The energy efficiency revolution continues with the launch of A. O. Smith's HPI Hybrid Water Heater. HPI integrates an energy recycling heat pump module that harnesses ambient heat to generate hot water much more efficiently. Designed under A. O. Smith's quality standards, the HPI-C1 model is a reengineering of this top-selling series for the Philippines' uncommon electrical and weather conditions.


  • Ultra Energy Efficient air source heat pump module
  • Patented heat exchanger with micro-channels for larger surface contact
  • Extra-Thick thermal insulation
  • AES Adaptive Energy Saver
  • Schedule programmable
  • Mode setup (Sleep, Hybrid Mode; Instant heating; High-Efficiency mode)
  • Blue Diamond Glass Lining
  • Glass-Lined Heating Element
  • Wired Remote Touch LED Control
  • Real-time hot water display
  • IPX4 Waterproof Outdoor Design

Heat Pump Module

  • Heat Pump: 540W Input
  • COP: 3.5
  • Max. Temperature: 65 dC
  • Heat Pump Operating Temperature: -7 - 43 dC
  • Refrigerant: R134a

General Specifications

  • Capacity: 40 gallons (150L)
  • Electrical: 220V 60Hz
  • Electric Backup: 2.5kW
  • Max. Current: 13.6A
  • Max. Pressure: 1.03 MPa
  • Water Temperature Setting: 35 - 75 dC


  • Inlet/Outlet: 3/4" NPT
  • Total Height: 1610mm
  • Tank Diameter: 520mm
  • Maximum Depth: 574mm
  • Door Width: 447mm
  • Tank Weight: 89kg
Weight: 94 kg
Dimensions: 560 mm × 560 mm × 1700 mm