This is one of the most common questions Nick gets when quoting a hot water replacement. The honest answer: both are excellent. Here is how they compare in practice.
Reliability
Both are Australian-designed, widely serviced, and have strong track records. Nick has installed hundreds of each across Brighton, Bentleigh, Hampton and Elwood over 10+ years. Major failures with either brand are rare when installed correctly.
Rinnai — Strengths
- Compact, high-quality continuous flow units
- Very strong warranty and service network
- Excellent temperature control on higher-end models
- Nick’s most-recommended brand for continuous flow gas in Bayside
Rheem — Strengths
- Wide range — continuous flow and storage
- Excellent parts availability everywhere in Australia
- Strong on storage systems (gas and electric)
- Good value for money on storage units
What Nick Recommends
For continuous flow gas: Rinnai Infinity series. For gas storage: either brand. For electric storage: Rheem or Dux depending on size and stock. Nick will tell you exactly what he would put in his own home based on your household and setup.
Call Nick on 0426 269 058 for a straight answer on what system suits your home.
Related: Hot Water System Replacement | Plumbing FAQs
