Many people wonder if oversizing a pool heater is a good idea. The short answer is: not usually. Oversizing can lead to higher upfront costs and inefficient operation. Here’s why:

Choosing the right Rinnai heat pump isn't just about size, it depends on your switchboard capacity, your household's usage, and whether you can schedule it around solar or off-peak power. Here's how to get it right, and what it means for your payback period.