Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Boulter
Head to Head
Wolf CGB-24
Wolf • 89.7%
Both Boilers
Available FREE through ECO4 scheme
Wolf CGB-24 leads with 89.7% efficiency, providing better performance and energy savings.
Both Boulter Bonus 40/65 and Wolf CGB-24 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
