Solahart Atmos Frost 270QDR
The Solahart Atmos Frost 270QDR is a robust, frost-tolerant heat pump designed for year-round hot water in diverse Australian climates — now with Home Energy Management System (HEMS) compatibility.
Solahart Atmos® Frost 270QDR: Key Attributes
Why Atmos Eco is a smart choice
Built for Australia's most demanding conditions, Solahart Atmos® Frost 270QDR Heat Pump provides a reliable, energy-efficient alternative to traditional electric systems. With its frost-tolerant design, 270-litre capacity, and high-efficiency performance (COP of 4.4), it’s ideal for cold climates, harsh water areas, and tropical locations.
Now optionally compatible with Solahart HEMS (Home Energy Management System), the 270QDR can intelligently coordinate with your solar power system. This integration helps you maximise self-consumption of solar energy by scheduling water heating during off-peak or surplus solar periods, giving you more control over your energy use and costs.
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Specifications
Technical Storage Capacity (L) 270 Boost Capacity (L) 195 Dimensions H x W x D (mm) 1825 x 725 x 690 Weight - Empty (cartoned) (kg) 145 Weight - Full ( kg) 405 Temperature Setting (°C) 60 Maximum Rated Power Input @ 240 V (Watts) 3600 Rated Heat Pump Power Input (Watts) 985 Refrigerant R513A Element Size (kW) 2.4 Noise Rating @ 1 m (dB(A)) 47 IP Rating IP24 Average Coefficient of Performance (COP) @ 19°C Ambient air temperature & 8°C to 60°C water temperature 4.4* Average Heat Pump Heating Capacity @ 19°C Ambient air temperature & 8°C to 60°C water temperature (kW) 4.0* Water Connections and Pressure Settings Water Inlet/Outlet Connections Rp 3/4 Temperature Pressure Relief Valve Setting ( kPa) 1000 ECV Setting (not supplied) (kPa) 850 Maximum Mains Supply Pressure With ECV (kPa) 680 Without ECV (kPa) 800 Suitable for (people) Family Size 6 Solahart Warranty Solahart Warranty (years) 7 Water Heating Energy Savings Water Heating Energy Savings (#) 74% * COP – The Coefficient of Performance for a heat pump is the ratio of how much useful heat it produces for water heating to the power input into the water heater. The higher the COP number, the more efficient the heat pump is. The actual COP of the product at any given time will be impacted by a number of factors, including the ambient air and cold-water inlet temperatures at the place of installation and time of day / season of operation.
An Average Coefficient of Performance (COP) of 4.4 was measured under test conditions with an ambient air temperature of 19˚C/15˚C (Dry Bulb/Wet Bulb), heating of the water from 8˚C to 60˚C during water heater operation and a power supply of 240 V~ 50 Hz. The Heat Pump average heating capacity in Watts (and converted to kilowatts – kW) and its water heating capacity in Litres / hour were calculated from the results of this test.
Average Heat Pump Heating Capacity kW – This is how much heating power is put into the water during the heating cycle by the heat pump. It is expressed as an average due to the changes in heating power from the refrigeration cycle as the water is being heated and its temperature increases during the heating cycle. -
How it works
How Heat Pump Water Heaters Work
The efficient heat pump technology extracts energy from the surrounding air. Ambient warmth is used to convert the refrigerant within the sealed system into a gas. The gas is then compressed to generate even more heat which then heats the water in the tank. What’s more this process can work day or night, in sunshine and rain, all year round.
When hot water is drawn off and cold water enters the tank, the thermostat activates the fan and the compressor. The operation of the compressor causes a pressure difference within the sealed refrigeration system. This pressure difference causes the refrigerant to move around the sealed system. The refrigerant enters the evaporator as a liquid. As the refrigerant absorbs heat from the atmosphere it changes state, at low pressure, from a sub cooled liquid to a super-heated vapour or gas (evaporates). The vapour then enters the compressor and obtains more heat, known as heat of compression, and passes into the heat exchanger as a super-heated vapour at high pressure.
As the refrigerant passes through the micro-channel heat exchanger wrapped around the storage cylinder, it gives off heat which is absorbed by the water inside the cylinder. As the refrigerant gives off heat it cools and changes state back into a liquid (condenses). The refrigerant then enters the evaporator again and the cycle is repeated. The resulting cold air is then discharged through the air outlet louvers back to atmosphere. This process continues while ever heating is required until the water in the storage tank reaches a temperature of 60°C.
User-Friendly Smart Control
The Solahart Atmos-Air Heat Pump comes with an inbuilt touch LCD display. It is user-friendly and boasts a range of features, operation modes and settings:
- Clock
- Usable hot water quantity display
- Water temperature display
- Dual timer function
- Vacation Mode - conserve energy when you are on holidays
- Manual electric heating mode - For emergency hot water requirements in the event of the heat pump developing a fault
- Automatic de-icing Function - automatic de-icing in frost conditions
- Downloads
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*Warranty Details
- 7 years cylinder supply
- 3 years cylinder labour
- 3 years sealed system supply and labour
- 2 year parts supply and labour
*The warranty periods above apply to a single-family domestic dwelling only. See the Solahart warranty set out in the Owner’s Guide and Installation Instructions. For more details call Solahart Australia 1300 769 475.
Without limiting the warranty periods shown above, a 5-year whole-of-product warranty applies to the installation of a Solahart Frost 270QDR Heat Pump where:
a) A hot water rebate has been received under Solar Victoria’s Solar Homes Program for a heat pump water heater installed from 1 July 2023, and / or
b) Victorian Energy Efficiency Certificates (VEECs) have been created for a heat pump water heater installed from 1 February 2025.
For further details, call 1300 769 475. Proof of receipt of the rebate and / or proof of VEECs being created, i.e. installation quote showing number of VEECs and dollar value, plus proof of purchase (as applicable) must be produced at the time of the service call.
All other applications have a 3/1/1 warranty; 3-year cylinder supply, 1-year cylinder labour, 1-year parts, including labour.** Testing condition: 19°C/15°C (Dry bulb/Wet bulb) ambient air temperature, relative humidity of 62% and heating water from 8°C to 60°C.
^ Acrylonitrile Styrene Acrylate (ASA) is an amorphous thermoplastic with improved weather resistance.
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