Rinnai EHPA315VMA 315L
Rebates up to
$1,410
STC $600 · VEEC $765 (VIC) · ESC $810 (NSW)
Replace-electric, medium household, best zone. Enter your postcode below for exact figures.
VIC Solar Homes rebate
$1,400
50% of installed price, point-of-sale — locally-made tier. Stacks with STC/VEEC above.
VIC only. Assumed eligible, not confirmed against the live Solar Victoria product list.
AS/NZS 4234 energy savings
78%
vs the standard's reference electric storage water heater, medium household, best zone.
Register data as at CER (STC) 2026-04-30 · VEU 2026-07-01
Specifications
| Type | Standalone all-in-one |
| Refrigerant | R290 |
| Tank volume | 315 L |
| Rated heating capacity | 5.2 kW |
| Rated power input | 1 kW |
| COP | 7.22 (32.6 degrees C ambient, 21.1 degrees C cold water inlet) |
| Sound level | 48 dB(A) |
| Operating ambient | -1 to 45 °C |
| Tank height | 2134 mm |
| Tank diameter | 627 mm |
| Tank weight (empty) | 138 kg |
| Electric backup | 2.4 kW |
Certified to
Specs from: Rinnai Enviroflo EHPA Series 2 Operation & Installation Manual (S112069, Issue B, Feb 2023); public CER SRES / VEU / 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 | 13 STCs | $520 |
| Zone 2 | 12 STCs | $480 |
| Sydney (Z3) | 15 STCs | $600 |
| Melbourne (Z4) | 15 STCs | $600 |
| Canberra (Z5) | 14 STCs | $560 |
VEU — VEECs (Victoria)
| Zone | Repl. electric metro / regional | Repl. gas | Energy savings |
|---|---|---|---|
| Melbourne (Z4) | 8 / 9 | 7 | 78.2% |
| Canberra (Z5) | 7 / 8 | 6 | 73.7% |
ESS — ESCs (NSW)
| Zone | Repl. electric metro / regional | Repl. gas metro / regional | Energy savings |
|---|---|---|---|
| Sydney (Z3) | 26 / 27 | 12 / 12 | 71.5% |
| Canberra (Z5) | 25 / 26 | 10 / 10 | 63.8% |
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, medium household, calculated from the model's registered performance data.
The Rinnai EHPA315VMA is an all-in-one heat pump water heater: the fan coil unit (compressor and evaporator) sits on top of the 315 L storage cylinder in a single cabinet, and a circulation pump draws water from the tank through a plate heat exchanger and back, so there is no direct refrigerant-to-water contact and no field refrigerant pipework. The unit runs on R290 refrigerant (270 g charge) and is rated at 5.20 kW heat output with a COP of 7.22 at 32.6 degrees C ambient and 21.1 degrees C cold water inlet, the same heat pump module used across the EHPA VMA range. Sound level is 48 dB(A), and the heat pump operates across an ambient range of -1 to 45 degrees C (the electric element covers heating outside this range).
A 2.4 kW electric element backs up the heat pump, giving a combined rated input of 3.4 kW for circuit sizing. The tank thermostat is factory-set to heat to 60 degrees C once a week for legionella control; day-to-day operation is selectable between MAX (60 degrees C), MID (57 degrees C), and ECO (55 degrees C, factory default). The cylinder stands 2134 mm high with a 627 mm diameter and unit width of 675 mm, and the unit’s net dry weight is 138 kg (451 kg filled).
The manual covers four register variants of this same physical 315 L unit (VMA, VMAH, VMAW, VMAWH), differing in fittings/finish rather than the heat pump or tank specifications above. The manual does not state a specific hot water delivery temperature or warranty period; it defers delivery temperature limits to the Plumbing Code of Australia and warranty terms to a separate warranty document not sighted for this entry.
Registered model codes
EHPA315VMA, EHPA315VMAH, EHPA315VMAW, EHPA315VMAWH
Homeowners
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