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I have an solar hot water system with an Rinnai solar 20 gas booster. I have had issues with it not getting hot enough. I have checked temps in the bathroom and kitchen which are struggling to get to 40deg's. I checked the temp at the closest tape which is in the laundry, it only gets to 45deg's. Is there some way I can increase temperature to 50deg's +??
- Infinity 16
- Verified purchase
Just reliable hot water every time!
Very happy with our Rinnai Infinity 16. Previously had a Bosch hydropowered which was very temperamental especially in the colder months. But not the infinity. Very reliable and consistent hot water. We did not purchase the temp controller, but did have a temp valve installed so we could have the unit preset at 60 degrees. Highly recomend this product.
Luke Warm Water
Had a temp controlled (50 degree) Infinity 20 installed a few weeks ago. Using a pool thermometer the delivered to shower temp seems to be around 38-40 degrees (just tolerable in winter - saving on gas and water tho as not hot enough to hang around). Contacted plumber who advises unit cannot be adjusted and to ring Rinnai. I ring Rinnai technical support, who, after a 40 minute wait in the queue, could not have appeared to be any less interested and suggested I ring the plumber. On current experience stay away from this unit/supplier.
excellent highly recommended
I bought an enviro 26 in 2010 and it has run like a clock ever since. Rinnai gave me and extra 10 years warranty on the heat exchanger when i bought a second temperature controller. Rinnai gave me $150 cashback after purchase. I am extremely happy with my Rinnai and would happily buy same again. I am about to buy another enviro 26 for my father - to replace his electric system that is junk and just costs $$$ to boil water all day. Many thanks Rinnai - top quality Japanese hot water systems :)
All good then no spares
Had installed in brand new house. All good with hot water until one day not hot water. Checked unit and still igniting and couple of days of cold showers then hot again then cold again. Called local electricain who sought help from Rinnai. They explained a small part was the issue. Order put in for part to be later told that its a small part and dont sell spares and units are throw away and suggested buy new unit. Gobsmacked that a 3.5 yr unit is considered throw away....... unit eas hatd wired to power and no longer using gas or solar. Bill prices going up!!
The product is reliable, can change heat to how hot you want. Perfect for young children put it down to 40-41 for showering and I mostly put it to 55 for normal washing. Easy to use. Only complaint would be it does take a while to run hot in parts of the house that are further from the system. Great improvement on our old electric hot water Possibly would consider the enviro smart next time.
No hot water at all
We have had the B20 for about 2 years and have nothing but problems with it, having a shower and the hot water cutting out half way through, our plumber could not find a fault so Rinnai came out after insisting we pay a call out fee of $198.00, yes $198.00 CALL OUT FEE, they said it was our shower heads causing the problem but the same thing happens even when trying to fill the kitchen sink just to wash the dishes, piece of crap, ive clicked 1 star because there isn't a no star option
Great, has saved us heaps on our gas bill
I have a child with OCD who spends lots if time in the shower, I was worried about the cost increasing in our gas bills when changing to the Infinity 26 model. As well the reviews I read spoke about water and temperature fluctuations so we were concerned, however in the end we took a gamble and in our case it paid off. Our gas bills have been halved, we can now shower in two bathrooms at same time before we couldn't. We installed temperature controls in both bathrooms so we can all shower at our temperatures although if two people are showering...in different bathrooms the main controller sets the temperature, but to us that's ok. We haven't had any issues, the only thing we have to watch is the amount of water flow through our kitchen tap, its a 7.5 lpm per tap so we just turn it to full when using hot water. 6 months in two power bills later the unit is paying for itself.
No hot water at all
After reading other reviews there seems to be a consensus that the B20 has an inherent problem with no hot water at all especially when cold weather sets in. I had the plumber who installed it check it, he said it was ok. I had gas company check gas flow and that was ok. Then today there was no water flow at all again. Not happy wouldn't recommend Rinnai.
Much better than I thought!
After reading a few reviews, I was a little worried about switching from a gas storage hot water system to the infinity. However, we have been very impressed! We knew that our pipes needed to be upgraded to larger ones, so we actually had the new unit installed prior to the old one dying, so we had time to switch. The pressure is fantastic- so much so that I can barely tell if another shower , or the washing machine/dishwasher, is being used when I'm having mine. We now also have much more wall space outside, as the infinity is contained in a small unit, rather than the huge tank we had previously. Our plumber who installed the unit is actually considering installing one at his house, as part of his renovations. Thanks Rinnai!
B16 doesn’t work during winter
My B16 unit is only 5 years old, it works fine during summer but when the temperature drops and we turn the hot water on the pipes groan and there is no water pressure at all, after the sun comes up and the unit gets a little heat it’s all good again.
Too long to get hot water
We have a reasonable sized house with 6 bedrooms and installed 2 x Rinnai 32 units at the end of last year on either side of the 1 1/2 storey house. All new 1 inch pipe work was put in as part of our renovation so we could run 2 showers at the same time. It is taking a minute 20 seconds to get water to some of the showers and 40 seconds in the kitchen. The plumber says I need to turn the hot water tap on fully and not the cold and once its boiling then adjust the hot tap to the desired temperature and then also turn on the cold tap. This is not practical with children. The plumber doesn't know what to do.
Does anybody have issues with their Rinnai Infinity 26b ? Our unit is about 10 months old, and our water temperature drops from hot to cold. We have to then turn off the cold tap until the water goes hot, then adjust the temperature again. This can happen up to 3 times per shower
Fluctuating water temperature
We have had the Rinnai 16 for a number of years, has been ok but a little temperamental with water fluctuating in the taps.
Taps can only run on hot or cold alone, otherwise as soon as the temperature is balanced the hot water will turn off. Recently our shower has started fluctuating from very hot to cold, I can see the wall control operation light turning on and off.
Do you know what the problem would be?
Ps I did leave this question in the Q&A section however my question disappeared. Thanks
Despicable Service and Harassment.
After purchasing the unit 3 months ago it began fluctuating from hot to cold in most areas of the house and produced nil hot water in others. After contacting the fitting plumber who came out and tested it immediately it was found to be an Error 12 (combustion issue). The plumber immediately contacted Rinnai who sent out a prefers plumber. This tradesmen arrived and could not test the unit as he did not have the tools to do so. At this point I had no further contact with anyone until receiving a call the next day demanding $195 fee for the call...out. Since then I have been threatened and harassed on a daily basis by Rinnai Australia demanding the credit card payment for the call out fee. After investigating online and searching review websites I am now even more disgusted to find that this is a common problem with this unit. I am confused as to why I am out of pocket for what is clearly a documented and known warranty issue with the infinity 26 unit. Furthermore the subsequent treatment and harassment I’m am currently receiving from Rinnai on daily basis. I will be evaluating what suitable action can be taken with Consumer affairs in regard to this shocking treatment from what I believed would be a very reputable company. Please be mindful before purchasing any similar products.
Disgraceful customer service do not buy rinnai
Never experienced such poor & unprofessional customer service from RINNAI.
Had an independent plumber review unit & advised fault code displayed. He submitted warranty claim. Rinnai sent tech to fix problem & advised it was a unit problem & demanded call out fee.
Rinnai authorized their technician to attend the job & they are responsible for costs associated with warranty claims.
I have been receiving verbal abuse & threats from rinnai's technicians. Im am disgusted this how rinnai treat their customers after paying $2200 for their product.
- Infinity 26
- Verified purchase
Luke warm water - no after sales help
We had a Rinnai 26 installed as a replacement for a Rinnai 20 (which died after 12 years). Organised with Rinnai who appointed a company called Jordan’s.
The water temperature from the 26 is 36.5C measured from a tap only a metre or so behind the unit. The response from Rinnai after hours number (22/12/2017 - everyone already on holidays! Not our fault nor should it be our problem) is that we pay $300 call out fee to have it looked at and then to maybe have to have the gas flow into the unit increased.
DISGRACEFUL!! This should have been done...
Terrible unit and service
Have had unit for 6 months and it cuts in and out with producing hot water. Is faulty and when ring people that put it in (Gas appliances sevice) if not warranted fault then is very costly. DO NOT BUY RINNAI units as they are far too expensive ($3,000) for what you get and they are totally unreliable. Go with what you know not infinity unit - warranty useless as up to electrician to say if warranted problem or not. Call out fees totally over the top and a rip off.
What a joke
We had issues for months with the hot water cutting out and had a technician come out and they couldn't fault the product. (They charged me a $195 call out fee) They suggested replacing the tapware due to water flow restrictions, so we did, nothing changed. The technician came out again and still could not the problem. After he left, the hot water system magically started working perfectly. They are now refusing to refund me the call out fee (its still under warranty) saying it is not the unit. They are blaming the install but can't tell me why...the hot water system started working that day. Warrently is a joke. Rinnai is a joke. AVOID buying rinnai products at all costs, especially the B26 model that is so sensitive I'm not been told I need to re-plumb my house. Furious!!!!!
Had since 2003 and going strong but....!
Had this heater since 2003 and has been flawless but just noticed recently(two months) that I have to set temperature 3 degrees higher to get same temperature as usual (set to 45 to get 42 temp now)...not sure if this is due to age of heater or if there is anything I can do?? Ingrid
Questions & Answers
We have an Infinity 26. Over the past week or two it has started to make a knocking sound, usually in the evening. This is not a water hammer, and no other water is being used in the house. I can stop the noise by turning off the GAS tap, and turning it on again causes the sound to start. It is 'cured' by opening a hot tap, allowing the unit to run briefly, and then closing hot tap.
Because it's the gas tap that solves the problem, I'm concerned that this is a symptom of some kind of gas leak and don't want to take any chances with safety.
Hi Rob O, thanks for the enquiry. unfortunatly without attending site there is no way of being able to resolve this issue as the problem cannot be identified without inspection. We would recommend either booking a service call or a local plumber to inspect.
are you able to control the temperature on the rinnai infinity 16??
And if so how do you do it??
If I remember right, there was an optional extra you could purchase to adjust the temperature. We didn't get this though and haven't had any issues.
Hi David, you can purchase a temperature controller which are available on all the Infinity range. There are 4 different models available depending on your needs and multiple units can be added onto the system. More information on the models and their specifications can be found on the Rinnai Australia website here:
Once installed you can set the precise temperature the unit will produce.
Help me. I have tried calling your help line and can't get thru. No hot water. New hot water system. I have just had a baby. Please help me!!
We have sent a private message to discuss the matter further.
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