Immersion Heater Controls

Grasslin Electronic Timeswitch 

Timer

* 7-day control 
* Single immersion heaters only 
* 14 ON/OFFs per week 
* Volt free connections 
* 16(8) AMP 

 

 

Grasslin Mechanical Timeswitch 

Timer

* 24 hour 
* Single immersion heaters only 
* Volt free connections 
* 16(8) AMP 

 

 
Horstmann Economy 7 Quartz Timer 

Economy 7 times only 

* 1 hour boost 
* Dual twin or single immersion heaters 
* Easy to use 
* Indicator lights 

 

 
Horstmann Electronic 7 Timer 

Timer 

* 24 hour 
* Dual twin or single immersion heaters 
* 3 ON/OFFs 
* Indicator lights 
* One touch summer/winter time change 
* Replaces Electronic 7L 
* Most suitable replacement for Pactrol Micro 7 and Sangamo E7 

 

 
Horstmann BX2000 

Boost 

 

 
Horstmann E7BX 

Mechanical Boost 

* Up to 2 hour boost 

 

 
Horstmann E15 & E30 

Electronic Boost 

* 15/30/60 minute boost (E15) 
* 30/60/120 minute boost (E30)
* Suitable for loads up to 3Kw