The Econergy THD3500 heat pump provides a cost-effective, energy-efficient alternative to heating the water in your hot water cylinder.

Econergy heat pump water heaters are designed to cover the range of hot water needs of New Zealand homes. Each unit is easily connected to an existing hot water cylinder or Econergy heat pump ready cylinder via insulated water pipes and dual interconnect cables.

Specs

Model THD3500 heat pump water heater
Height 590mm
Width 750mm
Depth 300mm
Weight 48kg
Noise Rating 52 / dBa@1.5m
Min. Circuit Breaker Size 16amps
Rated Current RLA 4.0amps
Refrigerant R-134a
Min. Supply Pressure 50kPa
Max. Supply Pressure 1000kPa
Flow/Return Connections RP1/2/15 “/mm
Heat Output 3000W
Rated Input 930W
Recovery Rate 57L/hr
Efficiency (COP) 3.22W/W

Downloads

Calculate your savings

$

Your likely monthly savings

$ 50

Low hot water use

$ 60

High hot water use

Your likely yearly savings

$ 600

Low hot water use

$ 720

High hot water use

The calculations above are a guide only based on average household use. Heavy use appliances such as a spa pool, electric heating, etc may distort these figures.

* HP4000LT, 73.8% annual savings compared with electric hot water cylinder, Zone 5, Project Solar AS/NZS 5125 and AS/NZS 4234

Calculator assumptions: normal water heating costs are at least 25-30% of total spending on power

1000s

...of happy customers all over New Zealand

“We have loads more hot water than when we were on an element.  We have three showers in a row and we never run out of hot water.  In fact, we have to be careful because it is ripping hot.  This is all nice because it also knocks a big chunk out of our usual power bill!”

  • Eric Pettyjohn, West Harbour

“Our power bill came this week. $197!  In 8 years, I’ve never had a power bill starting with a ‘1’, it’s normally a ‘4’! It was a reading too, not an estimate. And that’s for the month gone, I wager it will get less over summer, so that’s fantastic!”

  • D Hall, Onehunga
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