It doesn't matter the height of the tangki when you have a pump. It all depends on the force of the pump. Normally a pump would work for a shower. Alternatively you can buy a heater comes with a pump.

It is a good buy. Just make sure you have the right power point for it and not shared.

It is ok sharing with a light which consume little power. 2 feet type is 20 watt and plus its ballast maybe takes another 20 watts. Total not more than 40 watts compare to 3kw a power point can support.

Alternatively you can connect the heater to direct main water pipe. The direct main pipe is the pipe that fill your tank to the float. Also you can have the option connecting to both with stop valves but only one can be use at a time. Never forget not to turn both on, if you do so the your tank will overflow.

However, you can add a non return valve for safety preventing tank overflow or can use both tank and direct. When there is no water supply to tank the heater will draw water from the tank.

Weikee,

If you are referring to electronic or a good ballast you are right. But in here we have to assume inefficient ballast for max calculation. See this web page: http://cannabis.com/growing/electric-How_M...really_use.html

It said, "....A good ballast will have a power factor above 0.9 (i.e. more than 90% of the power it draws is used to power the bulb). Cheaper (lower quality) ballasts often have power factors of 0.5 or less. That's right, only half of the power gets to the bulb. So a 150W lamp would be drawing 300W of power."...

Kitkat,

Click the image for more explanation.

Never connect the non-return valve outside the tank between the outlet pipe. This is because nothing last forever, when you need to change you have problem unless your connection is a union. By installing the non return valve in the tank outlet pipe (as shown in the diagram posted above) you can change it easily by just unscrew it and put the new replacement.

Non- return valves


Union
A union consists of 3 separate pieces + a rubber ring. To connect screw to hand tight. to disconnect unscrew it, you can then change the non-return valve.

1, 2, 3, you can have your cup of tea! Microwave oven can't even do that! They can boil the ocean with this technology. Noone needs to die for the homeless during winter, they can just dip themselves in hot water This is god sent!

This company may have a good product but the way they market their product is out of norm. Looking at the facebook they condemned and published so much about the electrocution of the Japanese couple, so many similar report, to say that their product is ZERO danger and you are asking yourself to be killed using the conventional Instant water heaters. It is ok to warn buyers but exaggerate too much till frightening all existing users is too much and bad taste. What you want all the existing users to do? Throw away their heaters? A good company should not just warn but come up with not only alternative (buying their product) but also how you can minimize risks if not overcome.

I dont think their prodcut is any safer when it is all about water and electricity. Over selling and everything seemed to me are like they have a magic. Don't Kill and super safer of power and instant heating and up their price.

Ya la, better have one victim than to make all of us their victims.

Some people make use of dead people and misery to push sell their product and make more money.

I do not know why you want to believe there will not be electrocution danger. There is heating element if not how you get to convert electric energy to heat energy? Yes there is no direct contact between the heating element and water but the heating coils is surrounding the copper water pipe for heat exchange. When heating element fail or broken or short circuit it needs not contact water to conduct electric current. The copper pipe will conduct current to water. Here is a diagram of a tankless single unit heater.

Go get the newer technology, the tankless instant water heater. Anyhow i think it is safer than the conventional instant water heater since there is no direct contact between heating elements and water.

Saving wise, not sure, should be the no much different. In fact the conventional one, direct contact with heating element should be more efficient, dont get mislead. There is no short cut to energy saving from electric energy convert to heat energy regardless of technology. The only saving is how not to loss energy as by product while converting.

But check the price first the new technology might be more expensive.

Wow Weikee, Can even think of induction! There will be absolutely no contact. In fact can have an insulation layer like ceramic (or even a vacuum) over the pipe. Oh ya have to be a steel or iron pipe. The heating fins of the tankless and its copper pipe can get corroded over time with the process of oxidation. If use induction a thin layer of stainless steel will take care of oxidation of the pipe.

As all said you got us wrong. Even though I commented "badly" on the product (actually commented badly on the company and not the product) because they claimed this and that like saving electricity bill and especially they claimed the product to be super safe that it won't kill. It is because they gives us (consumers) a false sense of safety and due to that we take no precaution to check or maintain if the product is still in good working condition after years of use. Such is dangerous and irresponsible. We die they don't after taking our money.

Also, If i were to buy a heater between the conventional instant water heater and this, I would buy this like you! though it is much expensive. The reason is safety. (again I want to qualify, yes it looks to me safer than conventional type but not 100% safe).

I do not know why you choose the storage type. You should just get the instant one, each for each bathroom unless you already have hot and cold pipe ready in all the bathrooms and intend to have a pump so as to enjoy great shower, like rain shower.

This post has been edited by stevie8: Oct 22 2013, 07:38 PM

They centralized 100L tank is close to a solar heater's price that use little or no electricity and safer from electrocution. Might as well go for solar. The reason ppl go for solar is not just cost of consumption (electric bill) but also for safety plus use as much as you like with no pain except for the cheap water bill.

As others commented due to high price for the storage it is better to get the conventional type. Safety wise more or less same, still the new one is safer by a bit not significant to me.

For the instant, it depend. There is always a price to pay.

Have you decided which model or type to buy and the reasons for it so that we can help input for you to get a suitable one(s) since you only paid the deposit and still can change your mind changing to another type, ultimately the decision is yours.

*StarGazer*,

Seriously, we are here to learn from our experience and the experience of others so that we will not be fool forever. I myself was fool as you come across my thread regarding my DB with too few MCBs and it could be not because the electrician fooling me, it could be he himself was not knowledgeable.

No one is 100% correct. Here you have me and if my solar heater ko today i will still go for solar and yet for Weikee he is a die hard gas storage heater user. And if he is 100% correct then I would be 100% wrong! And now we are crazy about this new heater if it could be better.