Thermann 400L (THP45x400)
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.
Specifications
| Type | Standalone split |
| Refrigerant | CO2 (R744) |
| Tank volume | 400 L |
| Rated heating capacity | 4.5 kW |
| Rated power input | 0.95 kW |
| COP | 5.08 (as quoted on manufacturer product page; specific test condition not stated) |
| Sound level | 38 dB(A) |
| Heat pump weight | 48 kg |
| Warranty | Tank 10, heat pump system 6, parts and labour 2 (domestic) |
Specs from: Thermann Split Heat Pump product page (thermann.com.au/products/split-heat-pump); public CER SRES / VEU / ESS registers.
Certificate rebate by postcode
The Thermann THP45x400 is a split-system heat pump water heater: a CO2 (R744) heat pump unit paired with a 400 L storage tank. The heat pump delivers 4.5 kW of heating from a 0.95 kW power input and runs at 38 dBA, with a manufacturer-quoted COP around 5.08.
The same heat pump unit (48 kg) is used across Thermann’s split range and paired with 160, 250, 315 and 400 L tanks; this entry covers the 400 L option. R744 is a natural refrigerant with a GWP of 1.
Warranty is 6 years on the heat pump system, 10 years on the tank, and 2 years parts and labour for domestic installations. Dimensions, tank weight and rated delivery temperature were not stated on the manufacturer’s public product page and are omitted rather than guessed.
Registered model codes
THP45x400
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