Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Optia
Keston C 36P Combi
Keston • 90.8%
Both Boilers
Available FREE through ECO4 scheme
Keston C 36P Combi offers superior efficiency at 90.8%, making it the better choice for long-term savings.
Both Keston C 36P Combi and Optia FF100 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
