Not that much in term if wastage. Power factor affect current not watt hour(energy). That is the same trick the so call energy saving device seller con people. They measure by power factor but not energy use. You see they always use ballast to show how inefficient the light can be, and switch on the magic device tada current drop and look like lots if saving. But that only playing with power factor not true energy usage. These base on my limited e&e knowledge I learned sometime back. Most of the technical calculation gip back to the colleague already.

Think a good conventional ballast is around 0.7+

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.

Need to use good quality valve, never use PVC valve.

Anyone tried Seers instant water heater ?

http://seers.com.my/our-product/instant-water-heater

appreciate feedback.

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.

I placed a deposit at HomeDec for DC-Heater yesterday. Based on what the sales person mentioned and demonstrated, I'm quite convinced. Main features - low power consumption 350-750watts vs conventional 3000watts, no heating elements hence no risk of electrical shock. A fiend of mine bought the same brand at last year's HomeDec and have no complaints to-date.

Hi,
Are you getting the tank water heater or the instant water heater ?

How much is the unit with pump ?

Hi guys,

i always wonder does water heaters with pump increase water pressure significantly? is it really necessary to get 1 with pump? looking at normal water heaters vs. with pump, price is almost half.

I wonder how does it work, did they give you the time required to heat up the water from 24c to 50c for the given storage capacity? If reduce power, the time will have to increase.

Sales person mentioned that it only takes less than 5 min to heat up IF the switch has been switched off earlier. Unlike conventional ways, she advised to keep the switch on 24/7 (cos it's low power consumption) unless you intend to go for holidays. She had a demo on the plate which is used in their water heaters. With just a little voltage from the cell battery, the plate took merely few seconds to heat up.

I am getting the tank heater. If not mistaken, the instant water heater is RM799 with pump

So you are talking about the tank water heater right ?

anyone tried their instant water heater ?

OK Thanks !

Anyone actually used it before ?

Not much price difference between instant water heater and tank (40L) but the tank has more savings in energy. I'll post the prices tonight as I do not have the brochures with me right now. In terms of mechanism, I think it works on the same concept

Try off it till it drop to normal room temperature, I have doubt it can heat up in. 5mins for 20L water, if that happen it can go Guinness world record for the most efficient heating element in the world.

Don't forget current is use for heating not voltage. It can have low voltage but high current. I did question them before, the sales agent keep quiet and black face.

thanks very much.
will talk to the plumber later.

Would like to get the feedback from the owner of Joven SL30P. Anyone?

Sos

mmhh ... well I guess i just have to try it out. Maybe shd just try 1 for starters. Has anyone here tried and able to confirm the electricity charges?

Do u think it works as the same concept as an air-pot, whereby heated water is stored and kept warm and shd the water drop to a certain temperature, it will auto reheat to restore it ?? This company is also selling air-pot where they claim a cup of drinking water is heated within 3 seconds.

Storage also heat the water and store it for later use. it can keep the water up to a day and still feel warm.