PREMIUM SPLIT
HEAT PUMPSTAINLESS STEEL TANK
Australian-Made 316 Stainless SteelR32 Split System
15-Year Tank Warranty
Neopower's split heat pump pairs an efficient R32 heat pump unit with a marine-grade 316 stainless steel tank manufactured in Morwell, Victoria by the Earthworker Energy Cooperative. Engineered for households that demand longevity, low running costs, and genuine Australian build quality.
Built for the Long Run — Not Just the Rebate
Most heat pumps on the market share the same imported components. What sets Neopower apart is what holds the water: an Australian-made 316 stainless steel tank from the Earthworker Energy Cooperative in Morwell, paired with a proven R32 heat pump. You get genuine longevity, real parts-and-labour backing, and a system that pays itself back while slashing your power bill.
Made in Victoria, Not Just Imported
Tank manufactured locally by the Earthworker Energy Cooperative — a worker-run Australian factory in the Latrobe Valley.
No Anode, No 5-Year Maintenance
316 stainless steel means zero sacrificial anode replacement — unlike glass-lined tanks that need inspection every 5 years.
Parts AND Labour Warranty
Real backing on refrigeration and electrical components — not just parts-only coverage that leaves you paying for service calls.
Solar PV & Off-Peak Ready
Smart controller schedules heating around your solar export window or off-peak tariff — hot water at near-zero marginal cost.
Stainless Steel vs Glass-Lined: Why It Matters
The heat pump unit is only half the story. The tank stores pressurised hot water 24/7 for 15+ years — and the material you choose determines whether your system quietly lasts the distance or needs anode replacement and eventually fails.
Glass-Lined Enamel Tank
- Requires a sacrificial anode rod to prevent rust
- Anode must be inspected and replaced every 5 years
- Enamel coating can crack or chip with thermal cycling
- Shorter typical warranty (5–10 years on cylinder)
- Heavier and more susceptible to internal corrosion
- Lower upfront cost but higher long-term maintenance
Neopower 316 Stainless Steel Tank
- 316 marine-grade stainless — the highest tier for hot water
- No anode rod required — zero ongoing maintenance
- Exceptional resistance to chloride and corrosion
- 15-year Australian-made warranty on the cylinder
- Australian-manufactured by Earthworker Energy in Morwell, VIC
- Recycled polymer outer casing adds insulation and durability
The Physics of Free Heat
A heat pump doesn't create heat — it moves it. Ambient thermal energy from the air is extracted and concentrated into your hot water tank using the same refrigeration cycle your fridge runs in reverse. That's why one kilowatt of electricity produces roughly four kilowatts of hot water output.
- 1
Air Drawn Across the Evaporator
A variable-speed fan pulls ambient air across the evaporator coil. Even at -7°C, there's useful thermal energy in the air waiting to be captured.
- 2
Refrigerant Absorbs the Heat
Low-pressure liquid R32 refrigerant absorbs the ambient heat and evaporates into a gas, carrying that thermal energy into the system.
- 3
Compressor Amplifies the Temperature
The compressor pressurises the gas, raising its temperature sharply into a hot, high-pressure state ready for heat transfer to the water.
- 4
Heat Transfers into the Tank
The hot refrigerant passes through the heat exchanger, transferring its energy into the water inside your 316 stainless steel cylinder — up to 60°C outlet temperature.
- 5
Cycle Repeats Efficiently
The refrigerant condenses back to a liquid and returns to the evaporator — a continuous, whisper-quiet 53 dB(A) operation.
From 1 kW of electricity in, the Neopower system delivers approximately 4 kW of useful heating — a performance efficiency around 400%. Conventional electric storage heaters convert 1 kW in to a maximum of 1 kW out.
Refrigerant: R32 (770g)
Neopower uses R32 refrigerant — a modern, widely-serviceable HFC with a Global Warming Potential (GWP) of 675, substantially lower than older R410A (GWP 2088). Delivers strong performance in Australian conditions while supporting a sustainable hot water future.
Why Homeowners Choose This System
Whether you're replacing an ageing electric storage unit, getting off gas, or specifying hot water for a new build, here's what makes the Neopower split heat pump with stainless steel tank a genuinely long-term investment.
Up to 70% Bill Reduction
Replacing a conventional electric storage heater with a heat pump typically cuts hot water energy use by 60–70%. Over a 10-year life, savings compound into thousands.
316 Stainless Steel Tank
Marine-grade 316 stainless steel is widely recognised as the gold standard for hot water storage — no anode, no enamel cracking, no ongoing maintenance.
Australian-Made Cylinder
Tanks are manufactured by the Earthworker Energy Cooperative in Morwell, Victoria — supporting unionised local manufacturing jobs and energy independence.
Cold-Climate Rated
Engineered to operate reliably from -7°C up to 43°C ambient — covering every climate zone in Australia including frost-prone Melbourne and regional Victoria.
Whisper-Quiet 53 dB(A)
Low-noise operation means flexibility in installation location — keep it near bedrooms, living areas, or neighbouring property boundaries without issue.
Smart Controller Included
Built-in controller lets you schedule operation around solar export or off-peak tariffs. Pair with rooftop PV to effectively run on sunlight during the day.
Split System Flexibility
Tank and heat pump separate up to 3 metres. Install the tank indoors or outdoors, against a wall or in a garage — perfect for tight blocks and retrofits.
Rebate Eligible Nationwide
Registered for federal STC rebates across Australia and Victorian VEU / VEEC incentives. Final installed prices are often a fraction of RRP after rebates.
Recycled Polymer Casing
Each tank ships with a recycled polymer outer casing — adding a second insulation layer, protecting the cylinder, and reducing environmental impact.
Choose Your Capacity
Both models share the same R32 heat pump unit and Australian-made 316 stainless steel construction. The only difference is tank size — sized against household hot water demand.
Ideal for 1–4 People
Compact footprint suited to small-to-medium households, couples, and young families. Same high-performance heat pump as the 315L — just a smaller cylinder for typical daily hot water draw.
- Tank Volume250 L
- Cylinder Material316 Stainless Steel
- Tank Height1625 mm
- Tank Diameter620 mm
- Heating Capacity3.5 kW
- Tank Warranty15 Years
Ideal for 4–6 People
Large-capacity option for families, households with teenagers, homes with multiple bathrooms, or any home where peak-time hot water demand is high. Same heat pump unit — just more stored hot water.
- Tank Volume315 L
- Cylinder Material316 Stainless Steel
- Tank Height1990 mm
- Tank Diameter620 mm
- Heating Capacity3.5 kW
- Tank Warranty15 Years
Every Number, Side by Side
Complete specification sheet for both 250L and 315L split heat pump systems. All values tested to standard conditions.
| Specification | NA41-SS250A (250L) | NA42-SS315A (315L) |
|---|---|---|
| Heat Pump Unit | ||
| Model Name | KR35/DN4-A / KR35/N4-A | KR35/DN4-A / KR35/N4-A |
| Power Supply | 220–240 V ~ / 50 Hz | 220–240 V ~ / 50 Hz |
| Heating Capacity | 3,500 W | 3,500 W |
| Rated Power Input | 865 W | 865 W |
| Rated Current | 3.75 A | 3.75 A |
| Max Input Power | 1,250 W | 1,250 W |
| Max Input Current | 5.80 A | 5.80 A |
| Water Yield | 70 L/h | 70 L/h |
| Ambient Temperature Range | -7°C to 43°C | -7°C to 43°C |
| Standard Outlet Temperature | 60°C | 60°C |
| Refrigerant | R32 (770 g) | R32 (770 g) |
| Noise Level | 53 dB(A) | 53 dB(A) |
| Heat Pump Unit Size | 931 × 407 × 551 mm | 931 × 407 × 551 mm |
| Net Weight (Heat Pump) | 50.0 kg | 50.0 kg |
| Installation | Outdoor | Outdoor |
| Storage Tank | ||
| Model Name | NEO-250HPT | NEO-315HPT |
| Storage Volume | 250 L | 315 L |
| Cylinder Material | 316 Stainless Steel | 316 Stainless Steel |
| Max Tank Pressure | 0.8 MPa | 0.8 MPa |
| Port Connections | 20 mm, 3/4" BSP | 20 mm, 3/4" BSP |
| Tank Diameter | 620 mm | 620 mm |
| Tank Height | 1625 mm | 1990 mm |
| Net Weight (Tank) | 62 kg | 70 kg |
| Waterproof Class | IPX4 | IPX4 |
| Tank Install Location | Indoor or outdoor, within 3m of heat pump | Indoor or outdoor, within 3m of heat pump |
| Place of Manufacture | Tank: Australia · Heat Pump: China | Tank: Australia · Heat Pump: China |
| Included Accessory | ValveCosy PTR Insulator | ValveCosy PTR Insulator |
* Test conditions: ambient air 19°C DB / 15°C WB, incoming/final water temperature 15°C/60°C. Specifications subject to change without prior notice.
Industry-Leading Warranty Package
Neopower stands behind every split heat pump with one of the most comprehensive warranty packages available in Australia — with the Australian-made stainless steel cylinder leading the pack at 15 years. Full warranty policy and terms are published at neopower.com.au.
Australian-made 316 stainless steel cylinder by Earthworker Energy Cooperative
Full heat pump module and compressor coverage
Smart controller and sensor leads
Outdoor-rated tank installation — indoor or outdoor within 3m of heat pump
Split System — Where the Tank Goes, You Decide
Unlike all-in-one systems that force tank and compressor into one footprint, the Neopower split configuration allows the storage tank to be installed up to 3 metres away from the heat pump unit, connected via insulated water circulation lines. That means the tank can sit indoors or outdoors — in a garage, against an external wall, or tucked into a utility closet — while the compressor lives where it gets the best airflow.
Outdoor Heat Pump Unit
The heat pump module installs outdoors in a shaded, well-ventilated location with clear airflow to the evaporator fan — ideal for garden edges, courtyards, or side passages.
Indoor or Outdoor Tank Placement
The 316 stainless steel tank can be installed indoors (garage, laundry, utility room) or outdoors with IPX4 weatherproof rating — maximum 3 metres from the heat pump unit.
Standard Power & Plumbing
Connects to standard 220–240V single-phase supply and existing 3/4" BSP hot and cold water lines. Typical like-for-like replacement completes in a single day.
Certified Installer Network
Installation must be completed by a licensed plumber and electrician. Our national distributor network can connect you with approved installers in your area.
Eligible for Federal STC & Victorian VEU Rebates
Depending on your climate zone and state, rebates can significantly reduce the upfront cost of your Neopower split heat pump. Victorian households may also qualify for additional Solar Victoria hot water incentives.
Split Heat Pump FAQs
The questions homeowners actually ask before committing to a stainless steel split heat pump system.
Other Neopower Hot Water Solutions
Not sure a split system is right for your property? Neopower offers a complete range of energy-efficient hot water solutions for every installation scenario.
All-in-One Heat Pump
Compact integrated unit combining tank and heat pump in a single footprint. Ideal for straightforward single-location installations where space isn't constrained.
View Product →Rooftop Heat Pump
Horizontal split system designed for rooftop or ground-level installation. Perfect for townhouses, apartments, and compact blocks where yard space is premium.
View Product →Black Shield Heat Pump
Premium all-in-one heat pump with a sleek black finish and enhanced corrosion protection. For properties where aesthetics matter as much as performance.
View Product →Evacuated Tube Solar
High-performance solar hot water using evacuated tube collectors. Excellent efficiency in Melbourne's climate with or without a booster.
View Product →Flat Panel Solar
Roof-mounted flat plate solar collectors paired with a storage cylinder. A proven solar hot water solution suited to a wide range of Australian homes.
View Product →Continuous Flow
Instant gas hot water with no storage tank—delivers unlimited hot water on demand. Efficient, compact, and suitable for space-constrained installations. Recycled Polymer Casing: The last Tank you'll ever need.
View Product →Not Sure What Hot Water System Suits Your Place?
Our team can walk you through the options — no cost, no commitment.
Neopower ™
Imaca Pty Ltd
ABN 651 4525 6542
1 Jellico Dr
Scoresby VIC 3179 Australia