Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Biasi
Head to Head
Boulter Bonus 65/90A
Boulter • 85.0%
Both Boilers
Available FREE through ECO4 scheme
Boulter Bonus 65/90A leads with 85.0% efficiency, providing better performance and energy savings.
Both Biasi 28S and Boulter Bonus 65/90A 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
