Chromagen 280L (HP280)
Rebates up to
$640
STC $640
Replace-electric, medium household, best zone. Enter your postcode below for exact figures.
VIC Solar Homes rebate
$1,000
50% of installed price, point-of-sale. Stacks with STC/VEEC above.
VIC only. Assumed eligible, not confirmed against the live Solar Victoria product list.
Register data as at CER (STC) 2026-04-30
Specifications
| Type | Integral all-in-one |
| Refrigerant | R134a |
| Tank volume | 280 L |
| Tank material | Vitreous enamel (glass-lined steel) |
| Rated heating capacity | 3 kW |
| Rated power input | 4.3 kW |
| COP | 3.6 (Operating (automatic) mode, ambient -20 to 45 degrees C) |
| Sound level | 48 dB(A) |
| Hot water delivery | 60 °C |
| Operating ambient | -20 to 45 °C |
| Tank height | 1920 mm |
| Tank diameter | 650 mm |
| Tank weight (empty) | 144.5 kg |
| Electric backup | 3 kW |
| Warranty | Tank 5, compressor and electronics 2, parts and labour 1 |
Certified to
Specs from: Chromagen Installation & Owner's Manual (Midea 280L all-in-one heat pump); Chromagen Air Source Heat Pump Product Specifications datasheet (BE0043.2); 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) | 16 STCs | $640 |
| Canberra (Z5) | 15 STCs | $600 |
VEU — VEECs (Victoria)
Not yet registered for VEECs.
ESS — ESCs (NSW)
Not yet registered for ESCs.
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 Chromagen HP280 is an all-in-one heat pump water heater built by Midea for the Chromagen range: a single outdoor cabinet with a 280 L nominal (300 L physical) vitreous-enamel tank and an R134a refrigerant circuit that heats the water through a condenser coil wrapped around the outside of the tank. Model plate reads RSJ-35/300RDN3. It runs automatically across an ambient range of -20 to 45 degrees C, with a 3.0 kW electric element backing up the heat pump outside its efficient operating band.
Hot water delivery defaults to 60 degrees C, adjustable from 38 to 60 degrees C. Sound output is rated at 48 dBA. This is the R134a version of Chromagen’s 280 L unit, distinct from the R290 all-in-one sold directly under the Midea brand (MHP280F-E1).
The same physical product is registered under two model codes (registration-cycle variants); certificate values are the same across both.
Registered model codes
280HPM20, 280HPM26
Homeowners
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