Storage or instantaneous boiler — what to choose
This is not “which is more modern”, but “what connection and habit you have”. Basics: how to choose a water heater.
Comparison
| Storage | Instantaneous | |
|---|---|---|
| How it works | Heats a tank | Heats the flow “now” |
| Examples | 10 L, A3 30, A3 50, A3 80 | EIL 6 Plus |
| Plus | Reserve for a shower; simpler “classic” logic | Less space; no wait to heat a tank |
| Minus | Space + waiting + standby losses | Depends on power/pressure; electrical demands |
When storage
When you need reserve, several points or a stable shower without a “power lottery”. See the litre table in the main guide.
When instantaneous
When there is no room for a tank and the electrics allow it. Parameters: power and capacity.
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