On Instant and Storage Water Heaters
When choosing a shower heater, there is two broad categories in the market - instant hot water heaters, and storage water heaters. Here's a look at their differences
Instant Water Heater
Storage Water Heater
Instant Water Heater
- Heats water up instantly as water runs through the equipment
- Control dial controls the amount of heat transferred to the water
- Is more limited in how much water could pass through to become heated as water is heated up when the water pipe passes by a heated copper unit - as such, the diameter of the pipe is limited in order to ensure good heat transfer
- Usually a more fixed design outlook that is combined with a set of shower tap, mixer and shower head
- Usually not used in low rise landed developments where water pressure is limited by unstable pressure directly from the government supplier
Storage Water Heater
- Always contains a storage amount of hot water
- Control dial controls the amount of stored hot water mixed with cold water
- Is less limited in how much water could pass through to become heated as amount of hot water available is according to the chosen storage tank capacity - as such, a few litres could pass through fairly quickly
- Could have a varied design by combining with shower tap, mixer and shower heads that are not a set with the storage heater
- As it has a larger capacity, and could present a more varied aesthetics, used more for upscale developments
- Usually used in low rise landed developments as stored water ensures better water pressure even if water pressure from the government supplier is unstable
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