Domestic Immersion Heaters

Backer’s domestic immersion heaters are engineered for use in vented and unvented hot water cylinders, thermal stores,
and renewable energy systems. Available in a range of materials and configurations, they offer durability, energy efficiency, and customisation to suit all domestic water heating needs.
Full range available:
- Standard lengths - 11"-36"
- Standard rating - 3kW
- Low Wattage available - 1kW, 2kW
- Bespoke available for manufacture if special is required.
All Available Domestic Immersion Heaters
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30" 3kW 2 ¼ BSP Copper Immersion Heater C30BTS
Regular price £34.62 GBPRegular priceUnit price per -
18" 3kW 2 ¼ BSP Copper Immersion Heater C18ATS
Regular price £32.71 GBPRegular priceUnit price per -
16" 3kW 2 ¼ BSP Titanium Immersion Heater AESZB340
Regular price £69.26 GBPRegular priceUnit price per -
11" 3kW 2 ¼ BSP Incoloy Immersion Heater 82511CT
Regular price £52.70 GBPRegular priceUnit price per -
11" / 279mm Incoloy Immersion Heater with Incoloy Pocket 09733INC
Regular price £25.76 GBPRegular priceUnit price per -
11" / 279mm Anti-Corrosive Immersion Heater 09733VS
Regular price £23.79 GBPRegular priceUnit price per -
14"/356mm 3kW 2 1/4" Incoloy Immersion Heater SH314A-AA11A1 (09009VC - equivelent)
Regular price £19.44 GBPRegular priceUnit price per -
14" / 356mm 3kW 2 1/4" Incoloy Immersion Heater 09009VS Type 314C
Regular price £28.48 GBPRegular priceUnit price per -
11” / 279mm 1.5kW Solar Panel Immersion 09899SP
Regular price £54.31 GBPRegular priceUnit price per -
11" 3kW 1 ¾ BSP Incoloy Immersion Heater SH311C-AA1BA1(CESTB327)
Regular price £48.18 GBPRegular priceUnit price per -
16" 3kW 1 ½ BSP Incoloy Immersion Heater DESTB340
Regular price £57.22 GBPRegular priceUnit price per -
36" 3kW 2 ¼ BSP Copper Immersion Heater D36/ANC
Regular price £37.09 GBPRegular priceUnit price per -
16" 3kW 2 BSP Titanium Immersion Heater BESZB340
Regular price £69.26 GBPRegular priceUnit price per -
16" 3kW 2 BSP Incoloy Immersion Heater BESTB340
Regular price £57.22 GBPRegular priceUnit price per -
14" 3kW 2 BSP Incoloy Immersion Heater BESTB335
Regular price £57.22 GBPRegular priceUnit price per -
9" 3kW 2 ¼ BSP Incoloy Immersion Heater AFYTB323
Regular price £58.84 GBPRegular priceUnit price per
Incoloy Immersion Heaters
- Designed for hard water areas and long
service life - Made from Incoloy 800/825 for excellent corrosion resistance
- Suitable for both horizontal and vertical installation
- Available in a wide range of lengths and thread sizes
- Compatible with dual thermostat configurations for added safety
Copper Immersion Heaters
- Ideal for soft water areas and standard
domestic use - Cost-effective and highly thermally conductive
- Available in 1½", 1¾", and 2¼" BSP thread sizes
- Compatible with a variety of thermostat types
- Suitable for vented cylinders and basic hot water systems
Titanium Immersion Heaters
- Built for aggressive or mineral-rich water conditions
- Offers maximum corrosion resistance and long-term reliability
- Suitable for specialist domestic systems and marine environments
- Compatible with standard and digital thermostats
- Ideal for premium installations or problematic water areas
eCOHeat – Low Wattage Immersion Heaters
- Designed for renewable energy systems like solar thermal and heat pumps
- Operates efficiently at 1kW–2kW for low-load applications
- Reduces energy consumption and supports off-grid or surplus energy use
- Compatible with vented and unvented cylinders
Why Choose Backer Domestic Heaters?
- UK Manufactured to the highest quality standards
- Pressure tested to 3.5 bar for safety and reliability
- IP-rated terminal covers for electrical protection
- Custom-built options available for OEM and retrofit applications