Thermann  300L Heat Pump Hot Water System
  • 5


    Cylinder Warranty



Made in Germany, the Thermann Heat Pump hot water system extracts heat from ambient air and quietly transfers it to heat water. It comes with a removable intake grill for easy cleaning and servicing where access is limited.

  • Active defrost function - for colder climates
  • Manufactured in Germany and specifically designed for Australian conditions
  • Uses less energy compared to traditional electric storage tanks
  • Eligible for Government rebates (STC's)

Prices are inclusive of GST

Must be installed by a licensed plumber.

TIHP300 how it works

1. A fan draws air through an evaporator. Thermal energy within the air is transferred to a liquid refrigerant causing it to change into a gas.

2. The refrigerant gas is then drawn into a compressor which increases the pressure and as a result increases the temperature.

3. A condenser (heat exchanger) then transports the hot gas refrigerant around the outside of the water tank. This heats the water inside the tank and the gaseous refrigerant reverts back into a liquid.

4. The pressure of the refrigerant is reduced as it goes through an expansion valve and returns to the evaporator for the process to start again.

Heating output at A15/W15-55 1.7kW
Power consumption at A15/W15-55 0.5kW
Sound pressure level at 1m distance in free field 56dB(A)
Standby energy consumption/24 h at 65° 1.14


Electrical DetailsData
Fuses C10A
Rated Voltage 240V
Phases 1/N/PE
Frequency 50HZ
Rated Current 2.5A
Power Consumption 700W
Max Power Consumption 700W


Capacity  300L
Relief valve pressure 700kPa
Max. inlet pressure - without ECV 500kPa
Max. inlet pressure - with ECV 420kPa
Minimum water pressure 200kPa


Height of unit when tilted 1990
Height when tilted inc. packaging 2200
Height (adjustable feet) 1870-1900
Diameter 670


Weight (dry) 125
Weight (wet) 428
Weight 125


Condensate drain 20
Water connection G1 (with adaptor Rp 3/4 female)


Air flow rate 550 m3/h
Lower air temperature limit 0°C
Upper air temperature limit 42°C
first heat pump tech drawing

second heat pump tech drawing

Estimated payback period for a TIHP300 vs Conventional Electric Storage - Please note: This data is for WA Only.


ResizedImage600266 heat pump estimated payback period

When choosing a hot water system, there are a number of factors you need to consider beyond the unit price. Installation costs can vary greatly for different types of hot water units. Ongoing running costs should also play a part in your purchase decision.

running cost chart

Guide only based on current average energy cost. This chart does not account for increased Electricity or Gas costs in coming years.

Where to Buy

Thermann hot water systems are available exclusively through Reece Plumbing. Find your nearest branch by entering your postcode below.

(You will be taken to the Reece website)


Here are the most common questions we get asked about hot water.

Get in Touch

Want to find out more about any of the hot water systems in the Thermann range? We’re happy to help.