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Water Storage Heater

Featured Replies

I have few questions and would like to have some answers or feedback k... ?

1) So this storage heater will run 24hr? Then electricity bill will be high?

2) even got off switch if we off it, it will defeat the purpose of having hot water anytime when we switch on right?

3) thinking of install 1 25litre to support 2 bathroom, think is cheaper if we install 2 instant heater inside each toilet right?

  • Author

Thanks for the information..

coz i'm thinking if using kitchen tap water or basin water.. normally we will be using normal cold water mah right? Since in the old days where my parents house only got normal tap water... we wont be using normal warm water ba...

Thanks for the information..

coz i'm thinking if using kitchen tap water or basin water.. normally we will be using normal cold water mah right? Since in the old days where my parents house only got normal tap water... we wont be using normal warm water ba...

25L tank is a little undersized for 2 toilets. if you do not use it concurrently it is still ok. but if both toilets shower on at the same time, then the amount of hot water might not be enough for a 25L tank. kitchen you do not really need hot water. also the heaters will be closer to the toilet side so there is a long run to the kitchen sink. and you will need to run the hot water some for some time before you get any hot water. if you really need hot water in the kitchen, then a instant heater is better.

25L tank is a little undersized for 2 toilets. if you do not use it concurrently it is still ok. but if both toilets shower on at the same time, then the amount of hot water might not be enough for a 25L tank. kitchen you do not really need hot water. also the heaters will be closer to the toilet side so there is a long run to the kitchen sink. and you will need to run the hot water some for some time before you get any hot water. if you really need hot water in the kitchen, then a instant heater is better.

Agree that 25l for 2 toilets is small. Our new place has 3 toilets so not sure how to configure?

20L for MBR bathroom?

15L for common bathroom and junior MBR bathroom?

Currenly we are using Ariston 25L, really cannot make it. I hear that Joven is better in terms of heating coil and reliability.

Anyone know?

  • 3 weeks later...
By right, storage heater is suppose to be switch on 24/7. :o

But due to high consumption of electricity :deal:, ppl tense to switch on the storage heater 15-30 min b4 using it.:) Depending on size of storage heater.

If u want to save on electrical bill, then go for instant heater. (provided shower period is short, if it's turn on for abt 30 min then comsumption will be even higher then storage) :)

Bcos instant wattage is 3-3.5kw :o, multi point even worst 4.5kw. :jawdrop:

Storage only 1.5 kw (HDB)

If you need to hv rain shower then choose storage heater. (Strong pressure)

If you dun need then choose instant keke...:lol:

Hope this helps ;)

:drunk: pal

Is it true that if shower more than 30mins using instant heater will consume more electricity?

I m stil considering installing whether to install storage or instant as my wife took long shower.

Depending on the wattage of the storage heater, if it's 3k watt then it'll be the same.

If it's for HDB use, then the wattage will b 1.5k watt, therefore instant heater will consume more if turn on for the same period of time.

Hope this helps ;)

:drunk: pal

Is there any recommended brand to look out for?

Heard Joven storage heater is good, any specified model with 1.5kwatt?

Any review so far?

Its a headache considering which to install.

Don't want to regret after installing

Is there any recommended brand to look out for?

Heard Joven storage heater is good, any specified model with 1.5kwatt?

Any review so far?

Its a headache considering which to install.

Don't want to regret after installing

Joven hard to find 1.5kW, mostly 3kW model.

Ariston is the other way round: only has 1.5kW model in Singapore.

is yours new or old HDB? newer HDB or those upgraded with higher electrical supply (40 Amp supply) can use 3kW storage heater, which is faster to heat up~ ;)

Joven hard to find 1.5kW, mostly 3kW model.

Ariston is the other way round: only has 1.5kW model in Singapore.

is yours new or old HDB? newer HDB or those upgraded with higher electrical supply (40 Amp supply) can use 3kW storage heater, which is faster to heat up~ ;)

Mine is a new HDB.

I believe usually storage tank is mounted on top near the ceiling in the toilet if not will be installed at the service yard.

Faster to heat up = consume more electricity?

I will rather prefer slow heating + save electricity(ard 15 to 20mins, i m fine)

But not sure if run it for more than 30mins-45mins, will it consume alot of electricity?

Mine is a new HDB.

I believe usually storage tank is mounted on top near the ceiling in the toilet if not will be installed at the service yard.

Faster to heat up = consume more electricity?

I will rather prefer slow heating + save electricity(ard 15 to 20mins, i m fine)

But not sure if run it for more than 30mins-45mins, will it consume alot of electricity?

it's the same. 1.5kW which takes 30 mins to heat up consumes the same electricity as 3kW which takes 15 mins to heat up.

3kW means electricity is being supplied to the water 2x faster than 1.5kW.

it's the same. 1.5kW which takes 30 mins to heat up consumes the same electricity as 3kW which takes 15 mins to heat up.

3kW means electricity is being supplied to the water 2x faster than 1.5kW.

Still very confused.

Tot saying using 1.5kW storage which run more than 30mins can save electricity as claimed using instant heater with 3kW will consume more electricity when run it more than 30mins.

Still very confused.

Tot saying using 1.5kW storage which run more than 30mins can save electricity as claimed using instant heater with 3kW will consume more electricity when run it more than 30mins.

okie i try to explain.

Part 1

let's leave instant heater out of the discussion 1st. we shall compare just storage heater of say, 25L.

basically you need X amount of energy to heat up this 25L of water.

so for 1.5 kW storage heater, you may need 30 mins to provide this X amount of energy to heat up this 25L of water.

but for 3kW, becos the speed of heating is 2x of 1.5kW, it will only need 15 mins to provide the same X amount of energy to heat up this 25L of water.

theoretically, you can switch off the storage heater once the water is heated, and use that 25L of water for your shower.

Part 2

so now compare with instant heater. instant heater is 3kW, so if you turn on hot water for 20 mins in shower, you are using 3kW for 20 mins, hence using more energy as compared to storage heater (you only spend 15 mins heating up the water).

but if you are the type that only spend 10 mins in shower, then instant heater saves more energy by the same logic.

hope you understand what i mean :)

Edited by marshmallow

okie i try to explain.

Part 1

let's leave instant heater out of the discussion 1st. we shall compare just storage heater of say, 25L.

basically you need X amount of energy to heat up this 25L of water.

so for 1.5 kW storage heater, you may need 30 mins to provide this X amount of energy to heat up this 25L of water.

but for 3kW, becos the speed of heating is 2x of 1.5kW, it will only need 15 mins to provide the same X amount of energy to heat up this 25L of water.

theoretically, you can switch off the storage heater once the water is heated, and use that 25L of water for your shower.

Part 2

so now compare with instant heater. instant heater is 3kW, so if you turn on hot water for 20 mins in shower, you are using 3kW for 20 mins, hence using more energy as compared to storage heater (you only spend 15 mins heating up the water).

but if you are the type that only spend 10 mins in shower, then instant heater saves more energy by the same logic.

hope you understand what i mean :)

Thanks for ur detail explanation.

I know a clearer picture now.

As for me, i only spend 10 to 15mins time in shower. But for my wife she spend 30 to 45mins showering. So likewise, if using instant heater it will be consuming 3kw of power over the entire 45mins = high electrical consumption.

I have checked Ariston site, they offer quite a number of models, some with 1.5kw, 2.5kw and 3kW. 1.5kw models are they multi point?

i only require to supply to 2 bathrooms. so which model is recommended for my usage.

Thanks for ur detail explanation.

I know a clearer picture now.

As for me, i only spend 10 to 15mins time in shower. But for my wife she spend 30 to 45mins showering. So likewise, if using instant heater it will be consuming 3kw of power over the entire 45mins = high electrical consumption.

I have checked Ariston site, they offer quite a number of models, some with 1.5kw, 2.5kw and 3kW. 1.5kw models are they multi point?

i only require to supply to 2 bathrooms. so which model is recommended for my usage.

oh sorry... for Ariston i should say, the better looking one only has 1.5kW model :lol:

Storage heater concept different from Instant heater. Instant heater needs "multi point" to supply to different locations. For storage heater, basically you only need one outlet for hot water from the heater, and the piping will bring the hot water to whichever area you required.

the hot water is then mixed with cold water at the mixer to provide the warm water you need for bathing etc :)

wah she spends so long in shower :o but i supposed water not running for the full 45 mins, rite? if she really uses so much water, then better get a heater with large capacity~

do you have rain shower? if yes, i think 25L just nice for one bathroom.

plan to have 2 pple showering in 2 toilets at the same time?

also, if the 2 bathrooms are very far away, not good to share heater too... speaking from experience :(

oh sorry... for Ariston i should say, the better looking one only has 1.5kW model :lol:

Storage heater concept different from Instant heater. Instant heater needs "multi point" to supply to different locations. For storage heater, basically you only need one outlet for hot water from the heater, and the piping will bring the hot water to whichever area you required.

the hot water is then mixed with cold water at the mixer to provide the warm water you need for bathing etc :)

wah she spends so long in shower :o but i supposed water not running for the full 45 mins, rite? if she really uses so much water, then better get a heater with large capacity~

do you have rain shower? if yes, i think 25L just nice for one bathroom.

plan to have 2 pple showering in 2 toilets at the same time?

also, if the 2 bathrooms are very far away, not good to share heater too... speaking from experience :(

So is it recommended to use storage for my usage pattern?

Of cos not running the water for entire 45mins.

But is it advisable to switch it off after heat up or have to switch it on for the entire 45mins?

Over 45mins if the heater is off, the hot water still can maintain right? cos we are not using the hotwater as we are mixing it with the cold water.

So which wattage should i go for?

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