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Resistive Storage vs. Heat Pump

  • 0:02
    Hey, it's Kyle here from KDEC to give you some tips for choosing the right hot water system for your home.
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    When considering a new hot water unit for your new build or existing home, a lot of people have been mentioning heat pump technology.
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    While they are much more efficient when comparing how much power they use, or the coefficient of power, keep in mind that there is more to the story than that.
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    If you're in a warmer climate up north, the heat pumps will thrive as the outside ambient temperature is consistently higher, which aids the coefficient of power and recovery rates.
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    However, if you're fortunate enough to suffer from the colder climates like us, the COP will drop rapidly, and thus, the recovery rate will also suffer.
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    What this means for the household is a hot water unit that will take a much longer time to heat up, and we all know how cranky a family can get with no hot water.
  • 0:48
    Electric storage hot water tanks have been around for decades and are as simple as they come.
  • 0:54
    While it is true that they're not as nearly as efficient as a decent hot water pump, we are able to counter the inefficiencies with a larger PV system for a similar cost and enjoy the same recovery rate across the year, keeping everyone happy.
  • 1:06
    Introducing a resistive diverter, such as an Ohm Pilot or a Catch Power, means that we can treat this hot water tank like a battery,
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    sending surplus PV energy into the tank that would otherwise go to the grid for a minimal feeding tariff.
  • 1:18
    Consider the reliability and repair cost. A heat pump has many moving parts and can be costly to repair as multiple trades may be required to diagnose it.
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    If the heat unit has lasted past its warranty period, you might not be able to get the spare parts and will be up for a whole new unit.
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    Electric storage units can be repaired by any plumber or electrician, and you'll find your units running for 20-plus years.
  • 1:40
    Our main advice is if you're looking to go down the heat pump path, spend the money on a decent unit, especially in the colder climates, as you require a backup element for when the unit freezes over in winter.
  • 1:51
    If it's too good to be true, it probably is. Design the system properly for whatever unit you decide to go with.
  • 1:58
    Come and see the KDEC team to work out what is best for you because tomorrow matters.

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As Albury Wodonga's leading solar experts, Kdec’s promise of quality service is guaranteed with our roster of trained and licensed Electricians. Whether you’re a commercial business, a new homeowner or looking to upgrade your family home, our 25 years of experience means you’re in safe hands.

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