Rheem heat pump hot water review.
Known for AmbiPower heat pumps.
#11 of 16 heat pump brands
- Founded
- 1936 in Australia
- Headquarters
- Rydalmere, Australia (owned by Paloma, Japan)
- Stock exchange
- Not listed
- Selling in Australia since
- 1936
- Series on the approved list
- 3
Our verdict
Is a Rheem heat pump right for you?
The safest-feeling name in hot water, with the biggest service network. Its current AmbiPower heat pumps are decent, owners rate them well so far, and the tank is covered for 10 years. But the heat pump itself has only 3 years, and Rheem's earlier MPi heat pumps drew some of the worst owner reviews in the category.
Rated 5.7/10, #11 of 16 brands we rate for heat pump hot water.
A good fit if
- You want a familiar brand with service everywhere
Maybe look elsewhere if
- You want long cover on the heat pump, not just the tank
What we like
10-year cylinder
AmbiPower tanks are covered for 10 years.
Service network
The widest hot water service network in Australia.
Worth weighing up
Short heat pump warranty
3 years on the sealed system.
Older models
The discontinued MPi drew 388 reviews averaging 1.5 stars on ProductReview. Make sure you're quoted a current AmbiPower.
What owners say.
4.4out of 5
From 23 owner reviews of Rheem heat pump hot water on independent review sites.
Earlier ranges, not counted in the rating
- Rheem MPi heat pump (discontinued): 1.5 stars from 388 reviews
- Rheem 325 split (discontinued): 4.3 stars from 2 reviews
Ratings as published on 8 October 2026. Some review sites invite or reward reviews, so we weight ratings by how many reviews sit behind them and pull small samples towards an average. We don't collect or edit these reviews.
How we rate Rheem heat pump hot water.
5.7The same five parts for every brand. No brand can pay to change any of it. The full method
Product scores · 40%
6.2Best two series: AmbiPower 6.5, AmbiPower 5kW Split 6.0
Owner reviews · 20%
6.04.4 stars from 23 owner reviews on ProductReview and SolarQuotes
Track record · 15%
7.090 years selling in Australia, not listed
Installer and market standing · 15%
1.5Not placed in the 2025 or 2026 installer votes for heat pumps; 23 owner reviews
Australian support · 10%
7.0Australian office, local phone
Every Rheem heat pump series.
Tap a series for why it scores what it does, its full specs, every version and the datasheet.
Questions to ask your installer
- 1What size tank suits my household, and why?
- 2Where will the unit go, and how close is it to bedrooms or the neighbours?
- 3Which STCs and state rebates are already taken off this price?
A good installer will be glad you asked, whichever brand you choose.
Australian support
- Office
- 1 Alan Street, Rydalmere NSW 2116
- Phone
- 1300 615 720
Your installer is the first contact for a warranty claim. Use these if your installer has closed.
Recalls and known issues
No recalls on the ACCC Product Safety register for Rheem heat pump hot water, checked 6 October 2026.
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