Envirosun Heat Pump Hot Water Systems from $2,229
Choose an Envirosun Heat Pump
Choose How You Want to Order
Not every hot water job is the same. Choose supply only if you already have an installer arranged, or select a supplied and installed option where available.
Supply Only
Best if you already have a licensed plumber, gas fitter or electrician arranged.
Your product price is for the hot water system only. Installation is not included unless shown or selected separately.
Valves, old unit removal, disposal, electrical work, pipework changes, gas work and compliance upgrades may be required depending on your installation.
Supplied & Installed
Best if you want the hot water system and installation organised together.
Select your preferred system, answer the installation questions on the product page and choose any required installation options before checkout.
Installation availability and final requirements depend on your location, access, product type, existing services and site conditions.
Not Sure What You Need?
Hot water systems vary by size, energy source, household demand and installation setup.
Compare the available hot water systems below or use the selection tools throughout the site to narrow down the right option for your home.
Consider household size, energy source, available space, hot water demand, running costs and installation requirements before choosing.
Envirosun Heat Pump Hot Water Systems for Brisbane, Gold Coast & Major Australian Metros
Envirosun heat pump hot water systems provide an energy-efficient electric hot-water option for homes replacing conventional electric storage or upgrading to modern heat-pump technology.
The current Installed Today Envirosun range centres on the M9 200L and M9 330L, providing a clear choice between smaller-family and larger-family hot-water demand.
Installed Today supplies Envirosun systems across supported mainland Australian markets, with supplied and installed options available in eligible Brisbane and Gold Coast service areas.
Envirosun M9 Heat Pump Hot Water Systems
Which Envirosun M9 Should You Choose?
| Model | Capacity Class | Current Starting Point | Best Fit |
|---|---|---|---|
| Envirosun M9 200L | Small / compact heat pump | Around 4 occupants | Smaller families, townhouses, rentals and moderate demand |
| Envirosun M9 330L | Large family heat pump | Around 6 occupants | Larger families, multiple bathrooms and stronger peak demand |
Occupant numbers are a starting point only. Shower habits, bath use, bathrooms, recovery and peak hot-water demand all affect suitable sizing.
Envirosun M9 200L Heat Pump Hot Water System
The Envirosun M9 200L is the compact option in the current Envirosun range.
Installed Today currently positions it around four occupants, making it relevant to smaller families, townhouses, rental properties and households upgrading from smaller conventional electric-storage systems.
It is approximately 580mm wide and 1746mm high, providing a narrower footprint than the larger 330L model.
Envirosun M9 330L Heat Pump Hot Water System
The Envirosun M9 330L is the larger family-size model in the current Envirosun range.
Installed Today currently positions it around six occupants, making it suitable to compare for larger families, multiple bathrooms and stronger morning or evening hot-water demand.
The larger cylinder is approximately 710mm wide and 1923mm high, so access and available installation space should be checked before ordering.
How Does an Envirosun Heat Pump Heat Water?
Envirosun M9 systems use air-source heat-pump technology to collect heat from the surrounding air and transfer that energy into stored water.
Electricity powers the compressor, fan, controls and other heat-pump components, but the system does not rely solely on direct electric resistance heating during normal heat-pump operation.
Actual electricity use varies with climate, household demand, operating mode, water temperature and installation conditions.
Envirosun M9 Uses R290 Refrigerant
The current Envirosun M9 range uses R290 refrigerant within the heat-pump refrigeration circuit.
R290 is increasingly used in modern heat-pump hot-water systems, but refrigerant type is only one part of product selection.
Capacity, recovery, controls, electrical requirements, noise, airflow and installation position remain equally important.
Envirosun M9 Inverter Technology
The M9 range uses inverter heat-pump technology rather than operating only at one fixed compressor output.
Inverter control allows the system to adjust operation according to heating requirements and selected operating mode.
This can help balance recovery, efficiency and operating sound depending on how the system is being used.
Envirosun M9 Operating Modes
The M9 range provides multiple operating modes so customers can choose how the system responds to different hot-water requirements.
Eco
Designed to prioritise efficient heat-pump operation for normal everyday hot-water demand.
Fast Recovery
Useful when faster hot-water recovery is required after stronger household use.
Mute Mode
Provides a quieter operating option where noise-sensitive periods or installation locations make lower-noise operation desirable.
Envirosun M9 for Noise-Conscious Installations
Envirosun M9 systems are included within Installed Today's quiet heat-pump range and provide a dedicated Mute operating mode.
Heat pumps still contain a compressor and fan, so installation position remains important around bedrooms, neighbours, outdoor living areas and narrow side passages.
Compare published acoustic figures using equivalent test conditions rather than relying on a single dB number without checking measurement distance and operating mode.
Envirosun Heat Pumps with Rooftop Solar
Envirosun heat pumps can work well in homes with rooftop solar where water heating can be scheduled toward daylight hours.
The storage tank retains heated water for later household use, allowing the heating cycle and the hot-water-use period to occur at different times.
Solar alignment depends on the household's generation profile, hot-water demand, operating schedule and required recovery.
Replacing an Electric Hot Water System with Envirosun
Envirosun M9 systems are particularly relevant to customers replacing conventional electric-storage hot water and wanting to move to heat-pump technology.
The new heat pump should not automatically match the old tank litre for litre.
Compare current household demand, tank recovery and peak usage as well as the old system's capacity.
Envirosun M9 200L for Smaller Electric Storage Replacements
The M9 200L can be worth comparing where the existing property uses a smaller conventional electric-storage system and household demand remains moderate.
It can provide a useful heat-pump upgrade path for smaller family homes, townhouses and rentals.
If the previous smaller tank regularly ran out, reassess whether the 200L model provides enough capacity before ordering.
Envirosun M9 330L for Larger Electric Storage Replacements
The M9 330L provides the stronger Envirosun option for family homes replacing larger electric-storage systems.
It can be relevant where the property previously relied on 250L, 315L or similar family-size storage and current demand remains high.
Do not assume a 330L heat pump is necessary purely because the old tank was large. Current household demand and heat-pump recovery should also be considered.
Choose Envirosun by Peak Demand, Not Just Occupants
Occupant count is a useful starting point, but two homes with the same number of people can use very different amounts of hot water.
- Number of occupants
- Number of bathrooms
- Back-to-back showers
- Shower duration
- Shower flow rates
- Bath use
- Morning peak demand
- Evening peak demand
- Recovery requirements
- Future household growth
Envirosun Heat Pumps Need Suitable Airflow
Heat pumps extract heat from surrounding air, so they cannot simply be placed wherever a conventional electric cylinder previously stood.
The M9 needs suitable airflow and the manufacturer's required clearances around the heat-pump section.
Tight cupboards, enclosed rooms and restricted side passages should not be assumed suitable without checking the installation requirements.
Condensate and Valve Drainage
Heat-pump operation can produce condensate, so suitable drainage needs to be considered as part of the installation.
Pressure and temperature relief valve discharge also needs appropriate drainage in accordance with the installation requirements.
A location that suits the tank physically may not be appropriate if drainage cannot be arranged correctly.
Check the Existing Electrical Setup Before Installation
Envirosun heat pumps require a suitable electrical connection for the compressor, controls and heating functions.
Existing electric-storage wiring should not automatically be assumed suitable for the new heat pump.
Confirm connection type, circuit protection, isolation and any required electrical work before installation.
What to Check Before Ordering an Envirosun M9
- 200L or 330L capacity
- Current household demand
- Existing tank size
- Available installation space
- Delivery and removal access
- Airflow clearances
- Condensate drainage
- Valve drainage
- Electrical supply
- Existing valves
- Noise-sensitive locations
- Service access
Envirosun Heat Pump vs Standard Electric Hot Water
Envirosun Heat Pump
Uses air-source heat-pump technology and is designed to reduce reliance on direct electric resistance heating during normal operation.
Electric Storage
Uses electric resistance elements and can provide a simpler like-for-like replacement where installation simplicity is the priority.
The Trade-Off
Heat pumps can reduce electricity consumption but require more consideration of airflow, drainage, noise, controls and installation position.
Comparing Envirosun with Other Heat Pump Hot Water Systems
Envirosun M9 competes with heat pumps from brands including Rheem, Rinnai, Stiebel Eltron, iStore, Dux and other current residential heat-pump manufacturers.
Compare the actual models on tank capacity, recovery, controls, refrigerant, noise, dimensions, electrical connection, warranty and installation requirements rather than choosing by brand alone.
Envirosun Heat Pump Hot Water Systems Brisbane
Brisbane is a primary Envirosun installation market for Installed Today. Selected M9 systems can be ordered with professional installation in eligible Brisbane, Logan, Ipswich, Moreton Bay and Redlands service areas.
Common Brisbane applications include replacing electric storage, upgrading family hot water, rental-property improvements and homes wanting heat-pump hot water alongside rooftop solar.
Final installation requirements depend on model, access, airflow, drainage, electrical setup, valves, pipework and site conditions.
Envirosun Heat Pump Hot Water Systems Gold Coast
Selected Envirosun M9 heat pump hot water systems are also available supplied and installed across eligible Gold Coast service areas.
Choose between the 200L and 330L models based on household demand rather than simply selecting the larger tank.
Installation suitability depends on access, airflow, drainage, electrical supply, plumbing and the selected location.
Buy Envirosun Heat Pumps Across Major Australian Metro Areas
Supply-only Envirosun heat pumps are available for customers who already have suitable licensed trades arranged across supported mainland Australian markets.
Our main Envirosun markets include Brisbane, Gold Coast, Sunshine Coast, Sydney, Melbourne, Perth and Adelaide, together with Townsville, Cairns, Toowoomba, Newcastle, Central Coast, Wollongong and Geelong.
Brisbane and Gold Coast remain the primary Installed Today installation markets. Customers elsewhere can choose supply only where delivery is available and arrange their own suitable licensed installer.
Choose How You Want to Order Your Envirosun
Supply Only
Choose supply only if you already have suitable licensed trades arranged and simply need the Envirosun heat pump supplied.
Installation, valves, old-unit removal, disposal, electrical work, drainage, pipework changes, base work and compliance upgrades are not included unless specifically shown.
Brisbane Installation
Selected Envirosun M9 systems are available with installation in eligible Brisbane metro service areas.
Availability depends on product, postcode, access, electrical setup, drainage and site conditions.
Gold Coast Installation
Selected Envirosun systems are also available supplied and installed in eligible Gold Coast areas.
Final requirements depend on the chosen model and existing installation.
Envirosun Makes the Capacity Decision Straightforward
The current Envirosun M9 range gives customers two clearly separated residential choices: 200L for more moderate household demand and 330L for larger-family demand.
Compare occupants, bathrooms, shower habits, peak demand, tank capacity, recovery, operating modes, electrical requirements, noise, airflow, drainage, dimensions, warranty and installation position before ordering.
If the 200L model is likely to operate close to its practical limit, compare the 330L or the wider heat-pump range rather than undersizing the household hot-water system.
Enviroheat & Envirosun Hot Water System FAQs
Straight answers about Enviroheat and Envirosun heat pump sizing, household suitability, noise, efficiency, electrical requirements and installation.
What are the most popular Enviroheat and Envirosun heat pump hot water systems?
Installed Today's current range includes the Enviroheat 200L, Enviroheat 250L, Envirosun M9 200L and Envirosun M9 330L. The smaller 200L-class systems suit lower-demand homes, the Enviroheat 250L provides more family-size storage, and the Envirosun M9 330L is the larger option for households of around 6 people.
What is the difference between Enviroheat and Envirosun heat pumps?
Enviroheat and Envirosun are related heat pump options but use different technology. The current Enviroheat 200L and 250L models use R134a refrigerant and conventional heat pump controls. The newer Envirosun M9 200L and 330L systems use R290 refrigerant, inverter heat pump technology, a TFT LCD controller and operating modes including Eco, Fast Recovery, All Electric and Mute. Envirosun M9 is the more modern technology platform, while Enviroheat remains a strong value-focused heat pump option.
Which Enviroheat or Envirosun heat pump size should I choose?
As a practical starting point, the Envirosun M9 200L suits around 3 people, the Enviroheat 200L suits around 3 to 4 people, the Enviroheat 250L suits around 4 to 5 people, and the Envirosun M9 330L suits around 6 people. Higher hot water use, long showers, bath use, teenagers or several people showering close together can justify choosing the larger model.
Is the Envirosun M9 200L suitable for 3 people?
Yes. The Envirosun M9 200L is a strong choice for a household of around 3 people with normal hot water demand. Although marketed as a 200L-class system, the official ES200M9 model has approximately 190L total water capacity. It uses R290 refrigerant, inverter technology and a 1.5kW backup electric element, making it a compact modern heat pump option for smaller homes.
Is the Enviroheat 200L suitable for a small family?
Yes. The Enviroheat 200L is commonly suited to households of around 3 to 4 people. The official 200EH1-14 model has approximately 195L nominal storage, a standard 10A plug-and-cord connection, 1.5kW auxiliary heating element and a listed operating noise level of approximately 46 dBA. Its 10A connection can make it a practical option where a suitable power point is already available.
Is the Enviroheat 250L suitable for a family of 4 or 5?
Yes. The Enviroheat 250L is the larger Enviroheat option and is commonly suited to households of around 4 to 5 people. It provides 250L-class storage, quiet 46 dB operation, auxiliary electric heating, timer control and dual-anode corrosion protection. It is a practical value-focused upgrade for family homes replacing conventional electric storage hot water.
Is the Envirosun M9 330L suitable for a family of 6?
Yes. The Envirosun M9 330L is the largest Envirosun model currently listed by Installed Today and is designed for larger households of around 6 people. It has 330L total water capacity and uses R290 refrigerant, inverter technology and multiple operating modes. It is a strong option where a 200L or 250L system would not provide enough stored hot water.
Are Envirosun and Enviroheat heat pumps quiet?
Yes, both ranges are designed for residential heat pump operation. The Enviroheat 200L and 250L are listed at approximately 46 dBA. The Envirosun M9 range lists a sound pressure level of approximately 42 dB(A) measured at 2 metres under stated conditions and also includes a Mute operating mode. Installation position still matters, particularly near bedroom windows, neighbouring properties and enclosed side paths.
Can I replace an electric storage hot water system with an Enviroheat or Envirosun heat pump?
In many cases, yes. Enviroheat and Envirosun heat pumps are commonly used as energy-efficient upgrades from conventional electric storage systems. The new heat pump still needs suitable outdoor airflow, drainage, electrical supply, a compliant base, plumbing connections and service access. An electric-to-heat-pump conversion may also require electrical extension or connection changes depending on the existing setup.
Can I buy an Enviroheat or Envirosun heat pump supply only or supplied and installed?
Yes. Supply only is available if you already have an appropriate licensed installer arranged and includes the heat pump only. Supplied and installed options are also available in eligible installation areas. Basic Install is intended for an eligible external, ground-level installation in the existing hot water position. Valve kits, disposal, electrical alterations, additional pipework, drainage, base work, relocation and difficult access may cost extra.
Enviroheat & Envirosun Heat Pump Pricing FAQs
Compare current supply-only and installed-from pricing. Prices below use each product's lowest live Shopify price plus the current matching heat pump Basic Install price, so they update automatically when store pricing changes.
How much is the Envirosun M9 330L Heat Pump Hot Water System?
The Envirosun M9 330L Heat Pump Hot Water System is available supply only from $2,409 . Supply only means you are purchasing the heat pump hot water system without installation. Supply and Basic Install is from $2,784 in eligible installation areas. The installed-from figure is the current lowest product price plus the current matching heat pump Basic Install price. Valve kits, disposal, electrical alterations, drainage, additional pipework, base work, restricted access, relocation and other non-standard requirements are extra where applicable.
How much is the Enviroheat 200L Heat Pump Hot Water System?
The Enviroheat 200L Heat Pump Hot Water System is currently listed supply only from $2,629 . Supply only means you are purchasing the heat pump hot water system without installation. This model is currently unavailable, so an installed-from price is not shown until product availability returns. Valve kits, disposal, electrical alterations, drainage, additional pipework, base work, restricted access, relocation and other non-standard requirements are extra where applicable.
How much is the Enviroheat 250L Heat Pump Hot Water System?
The Enviroheat 250L Heat Pump Hot Water System is available supply only from $2,229 . Supply only means you are purchasing the heat pump hot water system without installation. Supply and Basic Install is from $2,604 in eligible installation areas. The installed-from figure is the current lowest product price plus the current matching heat pump Basic Install price. Valve kits, disposal, electrical alterations, drainage, additional pipework, base work, restricted access, relocation and other non-standard requirements are extra where applicable.
How much is the Envirosun M9 200L Heat Pump Hot Water System?
The Envirosun M9 200L Heat Pump Hot Water System is available supply only from $2,369 . Supply only means you are purchasing the heat pump hot water system without installation. Supply and Basic Install is from $2,744 in eligible installation areas. The installed-from figure is the current lowest product price plus the current matching heat pump Basic Install price. Valve kits, disposal, electrical alterations, drainage, additional pipework, base work, restricted access, relocation and other non-standard requirements are extra where applicable.