Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Alde
Head to Head
Ferroli Optimax 25 OV
Ferroli • 89.4%
Both Boilers
Available FREE through ECO4 scheme
Ferroli Optimax 25 OV leads with 89.4% efficiency, providing better performance and energy savings.
Both Alde Slimline 2927 and Ferroli Optimax 25 OV 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
