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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14" 3kW 2 ¼ BSP Incoloy Immersion Heater 82514CT
Regular price £54.20 GBPRegular priceUnit price per -
23" 3kW 2 ¼ BSP Incoloy Immersion Heater 80023BTS
Regular price £42.16 GBPRegular priceUnit price per -
11"/279mm 2.25" BSP Copper Immersion Heater 09192VS
Regular price £21.07 GBPRegular priceUnit price per -
11" / 279mm Unvented Immersion Heater 09027J
Regular price £66.55 GBPRegular priceUnit price per -
11" / 279mm Low Watts Density Immersion Heater 09801VS
Regular price £66.01 GBPRegular priceUnit price per -
1 3/4" BSP 14" / 356mm Immersion Heater 09BP314
Regular price £67.97 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