Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Boulter
Head to Head
Geminox THI 0.9-9 C
Geminox • 89.0%
Both Boilers
Available FREE through ECO4 scheme
Geminox THI 0.9-9 C leads with 89.0% efficiency, providing better performance and energy savings.
Both Boulter Bonus 40/65 and Geminox THI 0.9-9 C 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
