This is Daicool heat pump, (not to be confused with Daikin heat pumps, which are great). It was installed at a residential address in Tauranga. When it comes to heat pumps, as with most things, you get what you pay for. There is a big difference in a cheaper branded heat pump (in this case, Daicool) when compared to a quality brand such as Mitsubishi Electric, or Fujitsu.
Upon inspection of this Diacool system, I found both the indoor unit and the outdoor unit to be noisy. Despite this unit being a relatively new install, a key difference with this model is its old technology fixed-speed, compared to the new inverter heat pumps mainly sold now.
I always recommend you choose a quality brand heat pump into your home. The main reason is so that if the heat pump ever fails and is in need of repair, parts are readily available. Plus technical support is assured by the manufacturer. The company will assist with diagnosing the problem.
Cheaper heat pumps tend to use cheaper componentry, which doesn't hold up to New Zealand's harsh outdoor weather. This new-ish heat pump is already showing signs of rust on the external casing; evidence of lower quality materials than its more well-known competitors.
Not to mention, selecting a good-looking, quiet model from the get-go is always a benefit.
To top it off, the installers positioned the heat pump outdoor unit right outside the bedroom. Not the best place to put a noisy unit like this one.
Sure; you can save a few dollars by buying a cheaper heat pump model. But remember – you get what you pay for!