So far, so good
We just had this system installed to replace a gas storage system. It's working great so far: very hot water, on demand. The water stays nice and hot; you can set it higher than the recommended temperature at installation (45C I think?), and I thought I'd need to, but it's been hot enough for me -- even in the room furthest away. We don't have high demand (2 people) or run the unit for long (water-saving mentality!). Can't wait to get my next gas bill to see how much we're saving.
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 :)
No lifespan, dead after 3.5 years, good luck to those who have just installed on, tick tick...
Seems nothing lasts like it used to. The old instant gas hot water system lasted 25+ years! the new energy efficient rinnai enviro 26 is 0.5 years out of warranty (3.5 years total) and is dead. The plumber says the junk yard is full of these units, just install another one and start saving to replace it in 3-4 years... otherwise work well for the past 3.5 years.
We have a single story in Melbourne. I have to have showers with hot water only because it's just hot enough most of the time. Sometimes it's lukewarm and too cold for a shower. Rubbish. Someone else mentioned that theirs stops producing hot water when it rains. That might be the same for us.
Water isn't hot enough.
We install it with 2 remote controllers, set to 40 degree on shower and 50 degree on kitchen. Kids don't need to turn on cold water to adjust temperature, and don't need to worry hot water temperature issue. Recommend install it with remote controller, it will save your water and gas bill.
Awesome on tank water!!!
We searched around for the best most efficient system as we don't want to be spending a fortune on gas and we're on a limited supply of water. (Rain water tanks). We've installed the water controllers which although reasonably expensive, are absolutely awesome as well. I can now get up in the morning, select a 30 litre shower at 41 degrees and my only complaint is that 30 litres disappears quickly if you don't turn the pressure down! In the kitchen we can change the temperature to 60 degrees and the water is consequently nice and HOT. No complaints about this system at all. We installed the controllers ourselves and it was very easy. Had an installation problem which Rinnai's technical support were able to help me out very easily. (Basically I had 4 controllers and they needed to be added in order or the 4th wouldn't be recognised).
Efficient, does what it should, love being able to set the temperature to what I need and save energy that way, and most importantly set the volume of water so we don't drain our tank too quickly!!!
You can only have 1 kitchen & 2 bathroom controllers. The 4th has to be a universal which doesn't have the bath/shower saver feature.
Early days but so far so good
We have just installed one of these in our new house.
The house has no gas connection before so our plumber have to do all the pipework. So I presume all meter, regulator are specified to support the unit.
The unit is working very well and we have temperature controllers.
One thing that worried me a little before we bought the unit was the numerous negative comments about how some of the rinnai units can cut in and out especially when water flow rate is slow. That is certainly not our case.
As we have controllers, we just simply turn the hot water tap on. The flow rate in our shower head is very slow.. I mean very slow. I think I measured it once, it was probably doing no more than 5 litres per minute. I am happy to report that it causes absolutely no problem with our setup. I know it is early days, but showers temp is consistent and control is great. Never once did it cut out.
We can get very hot water in our kitchen .. I presumed it would be close to 60 degrees.
One thing I did notice is that there is no water running out of the drain hole. Our plumber did not install a drain tube to the drainer connection and on the first couple of days of use, I looked for water draining out as in the manual, it said it can be up to 5 litres per hour something like that. But for all I can see, there is not much water I can find. I even stick a straw up the drain hole to see if it is blocked.. nope. Strange!
Most efficient way to heat up water and great control with temp controller
Good Unit but has vulnerabilities
We have had this Water Heater for 2 years. Recently the water temperature started out hot and then changed to cold instantly. Having had no problems before, just continuous hot water this was very puzzling. We called Rinnai but they had closed for the Christmas break on 24 December. So we called a local plumber who came and cleaned the filter. This unfortunately didn't solve the problem. On 2nd January we rang Rinnai again and they sent a serviceman that day. Unfortunately this service call cost $165. He said spiders had got into the pipe that drains water from the unit and had caused it to block and consequently the exchange of continuous hot water. A simple explanation, but a very expensive one for a unit that is only 2 years old. So if it happened again we would seriously think about some other form of water heater as the service charges are only going to increase and the cost savings this heater provides would be negated by service calls.
Vulnerable to spiders causing blockages
After reading some bad reviews on other Rinnai instantaneous HW systems we were almost going to cancel our order, but glad we didn't. We got the more expensive 7 Star version but worth every penny. It's small and sits neatly on the wall above ducted heating system. I think anyone who isn't happy with this unit might have installed it in the wrong spot. It should be close to the kitchen so that hot water is instant. Taps further away take slightly longer for hot water to come through, but we had the same thing with our previous system, and it's not enough of a delay to be a problem. We had a very good plumber who advised us well.
Efficient. Small. No ugly torage tank. Reliable. Very hot water with hardly noticeable slight fluctuation when running multiple showers/taps. Got a $672 govt rebate as changed from off-peak electric system + $200 cashback from Rinnai. Our supplier took the $672 rebate straight off the price.
Takes approx 30 secs for hot water to come through on taps furthest away, but we had this with our previous electric hot water system too,so I think this will happen with any system. Not suitable to use with water saving shower heads as causes temp fluctuations. Our plumber removed the flow restricter to save us buying a new shower head.
Questions & Answers
ProductReview.com.au has affiliate partnerships. These do not influence our content moderation policies in any way, though ProductReview.com.au may earn commissions for products/services purchased via affiliate links.