Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Boulter
Head to Head
Mikrofill Ethos 36C
Mikrofill • 88.9%
Both Boilers
Available FREE through ECO4 scheme
Mikrofill Ethos 36C leads with 88.9% efficiency, providing better performance and energy savings.
Both Boulter Bonus 40/65 and Mikrofill Ethos 36C 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
