Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Boulter
Head to Head
ELCO Klockner Heiztechnik
ELCO Klockner Heiztechnik Ultron 22
ELCO Klockner Heiztechnik • 86.8%
Both Boilers
Available FREE through ECO4 scheme
ELCO Klockner Heiztechnik Ultron 22 leads with 86.8% efficiency, providing better performance and energy savings.
Both Boulter Bonus 65/90A and ELCO Klockner Heiztechnik Ultron 22 are available at no cost through the government ECO4 scheme. Take the next step today.
✓ Government Approved Scheme ✓ No Hidden Costs ✓ Professional Installation ✓ Energy Efficient
