Compare, then decide!
Hot Water supply in an abuilding always be baffled between centralized and decentralized solution.
To decide which is better solution .. the following factors should kept in mind to make your decision:
- Energy consumption
- Pipe lengths
- Hot water consumption
- Investment cost
- Installation effort
- Comfort
- The system should also provide hot water for the individual applications in the right temperatures and in sufficient quantities, ideally even for an unlimited period of time and yet still be economical.
- The following comparison to be between instant electric water heater with electric central water heater
Energy Consumption
long water lines | Decentralized hot water supply short water lines |
 |  |
| 40% Energy loss 60% Usable hot water energy | 3% Energy loss 97% Usable hot water energy |
The energy lose in central system due to:
| The energy efficiency in decentral system due to:
|
 |  |
Short water Line
Instantaneous water heater is installed directly at the point of use, while with the centralized water heater the pipe length to the point of use eg 15 meter which lead to waste around 5 liter of cold water in the pipe in addition time waste which may take 30 sec.
With short water line you:
Save water
Save time
Correct water tempreture
In the water storage tanks, the water heated to high temperature (above 65 C°) for two main reasons:
- Due to mixed cold water during consumption
- To avoid the growth of legionella bacteria in the water (legionella die above 66 C° in 2 minutes)
The required hot water for domestic use normally between 35 to 45 C° depend on the application
Correct water amount
In the central water heaters the storage tank capacity eg 200 liter or more. while your required amount of water for washing face in the morning eg less than 2 liter but you keep 200 liter of hot water in standby
Correct water amount supply save energy and environment
Accurate billing
With correct amount of water and correct water temperature, you pay for what you use
Equipment cost
| Centralized equipment | Decentralized equipment |
| Cost of piping from storage tank to the POU | Equipment closed to the POU |
| cost of return line piping | No return pipe line |
| Big storage tank cost | No storage tank |
| Circulation pump cost | No circulation pump |
| Cost of piping insulation | No piping insulation |
| Gate valves and regulating valves cost | No valves needed |
| consumable items (like magnesium anode in storage tank) and high cost maintenance requirements | No consumable items and rarely maintenance needed |
Easy to fit
With decent realized electric instant water heater you save installation time, no complicated design and space saving
Comfort and Luxury
with
The Clage instantaneous electric water heater is the synonymous meaning of comfort and luxury
- Temperature control within easy reach
- Compact luxury design
- Right amount of water in the right time
- Low noise
- Security and hygiene
- remote control for temperature control
- Mobile application
- Statistics for electricity and hot water consumption
Figures, drawings and charts content from: www.clage.com