Rinnai Infinity 20 Questions & Answers

Hi アイリン ニ.

We have reached out to our Technical team and their response is set out below:

"When the B20 is running it draws 58 watts of power".

Regards, Rinnai Australia

Hi Gerhard D, Thanks for the question, we would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3) or booking a Service Call.

To book a Service Call please refer to our website with the following link external link  or call 1300 555 545 (option 2).

Thanks, Rinnai Australia

Hi Marie, Thanks for the question. Yes, the Rinnai Infinity 20 Gas Hot Water Unit uses electricity as well as gas. Should you have any further questions in relation to this unit we would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3).

Thanks, Rinnai Australia

Hi thanks for getting back, sorry to bother again,does it use a lot of electricity.

Hi Marie, Many thanks for your further question. The current model Rinnai Infinity 20 Gas Hot Water Unit has a 6 Star Energy Rating. A Hot Water Operating Cost Comparison can be found by visiting our website at external link 

Should you have any further questions in relation to this unit we would recommend contacting our Sales Department to discuss this matter further. They can be reached on 1300 555 545 (option 1).

Thanks, Rinnai Australia

Hi Jan M/Blair, Thank you for your question. We would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3). Alternatively, you can raise a service request for a technician to attend to the Infinity 20 using the below link: external link 

Thanks, Rinnai Australia

Hi Dirki W, Thanks for the question. The Rinnai Infinity 20 requires electricity to operate and heat your water. We would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3).

Thanks, Rinnai Australia

Hi Leighton,

Thanks for the question, we would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3).

Thanks, Rinnai Australia

Hi TomK, Thanks for your question. As there is only one specific internal Infinity model as standard infinity units can only be installed outside. To confirm which one you have been given we would recommend contacting our Technical team on 1300 555 545 for further advice, alternatively, you can contact an installer to discuss installation requirements. Thanks Rinnai Australia

Hi Gene, Please except our apology for the delay in reply you experienced due to our peak period. Thanks for the question, we would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545

Thanks, Rinnai Australia

Hi Judy,

Thanks for your question.

If you would like further advice, we would recommend contacting our Technical team on 1300 555 545.

Thanks Rinnai Australia

Hi Natalie D, Thanks for the question, we would recommend contacting our Technical Department to discuss this matter further. They can be reached on 1300 555 545 (option 3).

Thanks, Rinnai Australia

Hi Craig R,

Thanks for the question, there is more information required to confirm the issue. Our technical help desk can discuss this matter with you on 1300 555 545 option 3.

Thanks Rinnai Australia

Hi Peter, did you (your plumber) upsize/check the gas supply lines on install? Cheers.

Our gas lines are plenty big enough. The unit is many years old and only started misbehaving last winter. This is a new thing.

Hi Peter, Thanks for the question. The climatic conditions should not effect the operation of the infinity but relate to possible issues with gas supply or water flow. We would recommend booking a service call to diagnose the issue.

Please contact 1st care service on 1300 545 555 or alternatively book on line by the following link provided; external link 

Thanks, Rinnai Australia

Try looking for what you want here: external link 

Hi Wayne D,

Thanks for the question.

Please contact our technical team on 1300 555 545 Option 3 to assist further with your question.

Thanks Rinnai Australia

external link  check page 12.

Hi Temp Mo,

Thank you for your question.

Our technical team can help you with this question and can be contacted on 1300 555 545 option 3

Thanks Rinnai Australia.

Hi Dizzy, thank you for the question. Unlike a storage, the Infinity does not heat water unless a hot water outlet is opened. There is a very small amount of power used when on standby, like a TV but it is important to leave the power turned ON if in a frost location because the unit has anti freeze heater that will automatically turn on at approx 4 degrees. The frost heater requires less than 100 watts of power.

Thanks Rinnai Australia

Pity Rinnai has done little about the issue with the controller. temp set which seems to pop out ad nauseum with power fluctuations !

Hi how much power does. B20 system use please

hi Pete The B20 unit uses the following power: 2 watts with 1 controller in standby 58 watts during normal operation 68 watts in anti-frost mode If you have any further queries our Technical Help Desk can be reached on 1300 555 545 option 3.

Thanks Rinnai Australia

You best check with the service department. I can speculate and suggest the thermistor(if it has one) or temp regulator, water pressure etc. There is definitely a temp drop at the beginning as I guess the heated water has to progress through a length of pipe and if the pipe is long and not lagged there is definitely heat loss. I have to run mine for 20 secs and then gently play with the hot/cold faucet at the shower and wait again for the adjustment to take effect. This is little different from both the storage system solar system I have had in the past.

Hi Glenn Robertson, There can be a number of issues that can cause the symptoms you are reporting. The unit does need to have sufficicent water flow to ensure the hot water unit works correctly. If you have temperature controllers, make sure to choose the temperature required and only turn on the hot water tap.

If you do not have controllers, try to make sure the hot water tap is turned on first and then slowly add cold water. Given the age of the unit, water flow restriction inside the shower head may also cause this problem.

Our technical team can help with some troubleshooting on 1300 555 545 option 3.

Thanks Rinnai Australia

Thanks water flow sounds about wright

I now have to just use it without temperature control so adjust the water so it’s not boiling until we get a new one

Hi Sean, thanks for the question. The Infinity hot water units will switch on as soon as you open a hot water outlet. The power, gas and water must all be on for this to occur. If you are having issues, we have a technical help desk available on 1300 555 545 option 3 who may be able to assist.

Thanks Rinnai Australia

Hi Paul, thanks for the question, there may be a number of causes for the symptoms you are describing and an inspection would be required to isolate the issue. You can book a service call online here:

external link 

Thanks Rinnai Australia

Hi Marty, thanks for the question, a service costs $225.00 which includes up to 45 minutes of time and $40 for each 15 minutes after, if necessary. We have an online booking service which you can find here:

external link 

Thanks Rinnai Australia

Hi Mikeho1,

Thank you for your question.

The B-series was developed for the builders market and and the Infinity 20 is made for predominantly for the residential market and each offer a different warranty.

Thanks Rinnai

Thanks. So in terms of performance and functionality, is the b20 essentially the same as an infinity 20?