How do I set Boost on my Slimline Storage Heater?

Boost is a setting that will run the bottom storage element on the peak (24hr) supply to give the heater extra heat. This can be set from No Boost up to 3 hours. There is also an Auto Boost setting that would activate Boost if the heater has less than 50% of a full charge remaining.


Please Note: Setting the boost mode will run the bottom storage element on the peak (24hr) supply and will increase your electricity bill.


Boost is set as follows:


1. Press Menu

2. Press the down arrow to highlight Mode and press Enter

3. Press the down arrow to highlight Boost and press Enter

4. Press the arrows to highlight the length of Boost you require and then press Enter. A tick will show on screen to confirm that boost has been set.



The target room temperature is set at the front screen as normal.


Applicable to models: AC6550 AC6551 AC6552 AC6553 AC6554 DESE050 DESE070 DESE100 DESE125 DESE150  NLSH050 NLSH070 NLSH100 NLSH125 SSHE050 SSHE070 SSHE100 SSHE125 SSHE150 TSRE050 TSRE070  TSRE100 TSRE125 TSRE150 XLE050 XLE070 XLE100 XLE125 XLE150

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