Quantum 340L (340-08AC6-290)
Rebates up to
$1,450
STC $640 · ESC $810 (NSW)
Replace-electric, medium household, best zone. Federal STCs plus the better of VIC (VEECs) or NSW (ESCs). Enter your postcode below for exact figures.
AS/NZS 4234 energy savings
72%
vs the standard's reference electric storage water heater, medium load, best zone.
Register data as at CER (STC) 2026-04-30
Specifications
| Type | Integral all-in-one |
| Refrigerant | R290 |
| Tank volume | 340 L |
| Rated heating capacity | 3.81 kW |
| Rated power input | 0.84 kW |
| COP | 4.53 (Hot water production rate at 20 degrees C ambient air temperature) |
| Sound level | 48 dB(A) |
| Hot water delivery | 60 °C |
| Operating ambient | -10 to 35 °C |
| Tank height | 2200 mm |
| Tank diameter | 650 mm |
| Tank weight (empty) | 170 kg |
| Electric backup | None (heat pump only) |
| Warranty | Tank 5, electrics and refrigeration 2 |
Certified to
Specs from: Quantum Energy product brochure (2019, Quantum Energy Technologies Pty Ltd); public CER SRES / ESS registers.
Certificate rebate by postcode
Registered certificate values
Every scheme this model is registered for, by zone. STCs at $40, VEECs at $85, ESCs at $30 (reference prices as at 2026-07-07). Claim year 2026, medium household.
SRES — STCs (national)
| Zone 1 | 12 STCs | $480 |
| Zone 2 | 12 STCs | $480 |
| Sydney (Z3) | 15 STCs | $600 |
| Melbourne (Z4) | 16 STCs | $640 |
| Canberra (Z5) | 16 STCs | $640 |
VEU — VEECs (Victoria)
Not yet registered for VEECs.
ESS — ESCs (NSW)
| Zone | Repl. electric metro / regional | Repl. gas metro / regional | Energy savings (medium load) |
|---|---|---|---|
| Sydney (Z3) | 26 / 27 | 12 / 12 | 71.7% |
Certificate counts are computed from the model's registered performance data using the current regulated equations. A lodged claim depends on the specific installation, household size, and the scheme rules in force at creation. Energy savings % is against the AS/NZS 4234:2021 reference electric storage water heater for that zone and load size, calculated from the model's registered performance data, or taken directly from the register where it publishes a savings figure. VEU registers this data at the small load (the step-down load for a medium-rated system) and ESS at the medium load, so the two schemes' figures differ for the same zone.
The Quantum 340L (340-08AC6-290) is the largest unit in Quantum’s standard all-in-one wrap-around range, on a 340 L tank. It shares the 270 L unit’s R290 refrigerant circuit and rotary compressor, rated at 3.81 kW heating output and 0.84 kW power input, for a declared COP of 4.53 at 20 degrees C ambient. It operates from -10 to +35 degrees C with no electric booster element.
Delivered water temperature is 60 degrees C, sound rated at 48 dBA. The tank stands 2200 mm high by 650 mm diameter, nett empty weight 170 kg. Warranty is 5 years on the tank and 2 years on electrics and refrigeration, parts and labour.
The unit is certified to AS 2712 and AS 3498 (WaterMark), and is registered under this model code on the CER Small-scale Renewable Energy Scheme and NSW Energy Savings Scheme.
Registered model codes
340-08AC6-290
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