Thermann X Hybrid Heat Pump

Great most of the time (but some quality control issues) – This heat pump water heater works well when it works but there are clearly quality control issues which affect the operation of the unit in the Australian environment. This unit has failed twice - the first within the warranty period (a faulty seal and heating element) and the second just outside (but still covered by consumer law) being a faulty… Read more

sensor.

The good news is the service department is responsive and they have a local plumber who can get to the unit quickly. But make sure you have those contact details handy. The first time this unit failed, it took three days for my plumber and the plumbing wholesaler to track down how to get repairs under way.

Note that my unit is now five years old. I hope that the current generation has addressed the quality issues.

unit is performing well – So far so good, unit is performing well, hardly uses any electric and we have never run out of hot water even with 8 people visiting/ staying in our house. These are brilliant if sized correctly and installed correctly. I am a plumber and have installed this at my own property. We did away with the gas feed to our property as we have no demand for… Read more ·  1

gas anymore. Highly recommended, so far no issues. I bought thermaan as I hope parts will be available in the 'long run' which I don't suspect will happen if you buy a cheap Chinese version

When it works, it works well. BUT it is not reliable – The unit was installed, and first turned on in May 2020. It failed for the first time later that year, The service tech came out promptly, tested the unit, I believe he replaced something, and reflashed the software to Stiebel Eltron software (the unit is a Stiebel Eltron rebadged). In recent months the unit just stops working, with no fault… Read more

light. I lodged a warranty request via Reece in Ballarat, and was then contact two days later by Stiebel Eltron support, who asked me to keep restarting the unit, and to contact them once we had a fault light. We have now been restarting the unit for about a month, and still no fault light. I have again lodged a request for the unit to be repaired under warranty, and am now waiting for Stiebel Eltron support. The concept of a heat pump water heater is great, but these early units appear to be experiencing a few problems, and the companies are not providing the support I expect when purchasing a high priced unit like this.

noise level – Replaced a noisy Rheem hot water system with what I was guaranteed by a local plumber was one of the quietest on the market, I had not found any reviews on the Thermann prior to the purchase. Seems to be a good product so far, the only complaint is the noise level which drones through our home, would have gone solar instead. In high density… Read more

housing that occurs in suburbs now, like some air conditioning systems not a neighbour friendly item. Unfortunately unable to download recordings. ,

You have been warned – High expectations for this German heat pump that have been crushed with 3 system failures in 3.5 years. Installed for our new build in February 2019, first service call Dec 2020 - element replaced. Second service call December 2021 - faulty unit replaced with new unit. Third service call Nov 2022 - element on new unit replaced. Update: Originally… Read more

advised that this is not covered under warranty. Contacted by Thermann through this review for mediation, who have now decided to cover repair costs.

Terrible. 4 years and now defunct – High demand not great, can use boost to help. Main warranty on refrigeration system terrible.. 2 years for compressor, evaporator, valves and electrical components. Unit has been average since purchased, after 4 years with only 2 adults now completely defunct with no warranty etc to help. About to seek ACCC case lodgement. No reg service… Read more

technician with 2.5 hrs of point of sale. NEVER AGAIN!!! Thankfully there was one person from Therman x that I have been in contact with who has sought to provide me reasonable resolution in this case, due to extenuating circumstances. Has still cost me nearly $400 in diagnostic bills plus installation fee for a new unit. Case has been deferred with ACCC. Am hoping this unit will last longer. Should never have had to have gone this far.

Faulty unit keeps breaking down – Installed in a new house build December 2018. It has been serviced/fixed 5 times since installation. It has had parts replaced each time and the service agent stated they are a poor unit as they have to attend to many complaints with these units. When it works is a good unit but should NOT have to have it fixed this many times. Would definitely steer clear of buying this model. Show details

Efficient but unreliable – My unit is cheap to run but needs fixing about once per year, which is disappointing for an expensive hot water system. There’s a lack of plumbers with the right gear to fix it to and when you do get hold of one they mention that the faulty parts are a common design issue for the units. Show details