Econergy THD3500 Hot Water Heater
$3,647.83 excl. GST
Get your Heat Pump Water Heaters
- 3 kW split heat pump water heater from Econergy, made in Auckland
- Connects to a new or existing hot water cylinder
- Solar mode built in
- Econergy says up to 70% off your annual water heating energy
The THD3500 heats your water with energy from the air and heats about 57 litres an hour. We supply, install and service it across Rodney and North Auckland. Call us on 0800 278 296 for a free site visit and quote.
A split heat pump that works with your cylinder
The THD3500 is a split system: the heat pump unit connects to your existing hot water cylinder, or to an Econergy heat pump-ready cylinder, with insulated pipes and cables. Its controller shows when the heat pump is running, lets you switch between the heat pump and the electric element, and has a solar mode for homes with solar panels.
Performance
Econergy’s figures for the THD3500: 3 kW of heat from 930 W of power (a COP of 3.22), heating about 57 litres an hour. Econergy says it can take up to 70% off your annual water heating energy. Your actual savings depend on how much hot water you use and your power prices.
Need more hot water? The HP4000LT has a 3.5 kW output.
Look after your water
Like any heat pump water heater, it lasts longer on balanced, filtered water: see how your water affects your hot water cylinder.
Compare the range on our Econergy heat pump page, or see all our heat pump water heaters. Call us on 0800 278 296 for a free site visit and quote.
Specifications
Econergy THD3500 Hot Water Heater
| 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 |
Compare Models
Compare the Econergy range
| Model | Type | Heat output | Heats about | Efficiency (COP) |
| HP4000LT | Split, connects to a cylinder | 3.5 kW | 67 litres an hour | 3.8 |
| THD3500 | Split, connects to a cylinder, solar mode | 3.0 kW | 57 litres an hour | 3.22 |
| Thermoplus TH-260D1 | All-in-one with a 260 litre cylinder | 2.9 kW | Not stated | 4.4 (EN16147) |
Figures are from the manufacturer’s brochures. The efficiency figures come from different test standards, so they aren’t directly comparable. Econergy’s tested figure for the HP4000LT is 73.8% annual energy savings compared with an electric hot water cylinder in the North Island. We’ll recommend the right model for your household at a free site visit.
