Research-based pick — not personally tested
Sold in the USA
A.O. Smith Voltex MAX Hybrid Electric Heat Pump Water Heater (HPTA-50 210)
A US-market heat pump hot water system from A.O. Smith, ENERGY STAR certified and rated at roughly four times the efficiency of a standard electric-resistance water heater. A useful US-specific complement to our existing Rheem ProTerra listing, which is Australia-only.
Specs
- uef
- 3.68
- features
- Premium Smart Valve Technology,dual heating elements,leak detection with auto shutoff,iCOMM smart connectivity
- energy star
- true
- tank size gal
- 50
- warranty years
- 10
- min operating temp f
- -25
Pros
- ENERGY STAR certified with a strong published UEF of 3.68
- Rated to keep operating down to -25°F ambient, genuinely cold-climate capable
- Leak detection with automatic shutoff and smart connectivity included as standard
Cons
- A.O. Smith has limited presence in the Australian market, this is a US-focused listing
- Exact current MAX-tier price could not be confirmed, budget above the base-tier anchor price
- 50-gallon tank sizing may be undersized for a larger household, check A.O. Smith's 66 and 80-gallon MAX variants
Common questions
- Does this work in a cold garage or basement?
- A.O. Smith rates this unit to keep operating down to -25°F ambient temperature, so a cold, unheated garage or basement is generally within its operating range, but check clearance and ambient temperature requirements in the installation manual for your specific situation.
- Is there an Australian equivalent?
- A.O. Smith is not a major brand in Australia. See our Rheem ProTerra hot water heat pump listing for a comparable Australian-market product.