Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Firebird
Head to Head
Baxi 400 424 COMBI
Baxi • 89.0%
Both Boilers
Available FREE through ECO4 scheme
Baxi 400 424 COMBI leads with 89.0% efficiency, providing better performance and energy savings.
Both Firebird Boilerhouse S 120-150 and Baxi 400 424 COMBI 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
