The thermocouple for this appliance dies every 12 months or so forcing you to replace it at a cost of around $100, and which isn't always the easiest to find

We had this hot water system installed by Ember Plumbing yesterday replacing an existing Bosch 10p which was over 14 years old. Cant complain with the old Bosch system lasting over 14 years. Value for money in mine and my hubbies option and fingers crossed we get another 14 years.

Every time we turn a tap on, no matter how close to the system, about 2 minutes of water goes down the drain before it is hot. After continuous issues with the pilot light going out, the ignitor button eventually stopped working completely, we enquired to get it fixed and were told it would be almost cheaper to replace the unit than have 1 button repaired. So i manually lit it for the next 15-20 times before all the buttons stopped working. Now i can manually light the pilot light but the gas-on button wont stay on. If someone recommends this product, dont listen to them, do not buy this product.

Yet to find out how these hot water heaters measure up... thought they were made in Australia as before under licence. Australian made lasted twenty years plus...and very reliable... the outside packaging very misleading mentioning Germany and Gb Technologies... nowhere on the outside packaging does it say made in China... you have to look on the inside compliance plate to find this out. Not even on the Bosch website does it mention where they are made... Buyer be aware you are not buying a German product even the insides look very different than past models...

This is the first time I have felt strongly enough to write a review to help others. After another visit by the after hours plumber -

This is my second bosch of this type. Both have had the same issues starting in the first 12 months. Regularly not having hotwater is not nice. The parts don't last long, the pilot light goes out, the buttons get stuck so you cannot operate the unit, hotwater takes a long time to come through and the water cycles through hot and cold - even with the water saver removed in the shower head (they say it causes the hot cold cycling), wd40 to get the off button to unstick. The plumber had to really talk me into the replacing the last bosch with the current 10P and I hate to think what it has cost me.

we have two models the 10P and the 16P they lasted about 12 years each and we have replaced them with the same products. The heaters are located directly outside where they are need and the hot water flows almost instantaneously. no power connection required, so you have hot water when there is a power cut. my only criticism is that they quite deep and stick out from the wall - could be wider and less protruding. effective reliable and good value.

This hot water system is simply terrible. It always takes an eternity for the hot water to come through the taps. In my shower it is difficult to mix the hot and the cold reliably, the basin tap won't mix hot and cold at all and the same with my kitchen taps. It provides really hot water when the hot water does come through, however it is almost impossible to mix the hot and cold to get a warm temperature, when you add the cold the temperature of the water becomes cold and there is no warmth in the water. I don't know what to do about this problem. Gone are the days where I could just enjoy a shower.

The idea of hot water on demand is a good one, if that is what you get. You're not going to get a great flow from this product but it is adequate when it works. The main issue with the Bosch 10p is the pilot light keeps going out and won't stay lit. The initial signs are 1) it goes out 2) you have to hold the pilot light button down for several minutes, not 10 seconds to reignite it 3) then it won't be too far down the track that you can expect the pilot light to just not stay on at all no matter how long you hold down the button. We have found out it is the thermocouple, it has a very short life, we seem to be replacing ours 1 to 2 times a year, very annoying.

It's with heavy heart that I admit that I was wrong after calling the Bosch recommended number I was told that the cost of a service/diaphram replacement would only cost $190 after being quoted $300/$400 by local plumbers who seemed more interested in trying to sell me a new one, so thanks Bosch, so I would say google your local Bosch service centre, you will probably find it is actually cheaper believe it or not, the tech also recommended having this done about every 2/4 years and the system will prove to be a good buy .

I read many reviews for a replacement gas hot water heater and comments were all over the shop. This is one time when I made the right decision. I was pressured quite heavily by sales to migrate to the zero pilot systems. We have both pump assisted or gravity fed tank water and I was concerned there would be enough pressure to turn the pilot on. I was also considerate my bbq takes a few prods. So I went with the Bosch 10P. After I bought it and installed it, I was told by 2 independent installers that the zero (on demand) pilot systems were a headache for many and they were getting many calls and THEY told me I had right a wise choice. I have never had a problem with the 10p. Excellent unit - built to last.