Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Glow-worm
Head to Head
Vaillant
It's a Tie!
Both boilers have similar efficiency
Both Boilers
Available FREE through ECO4 scheme
Both boilers offer excellent efficiency. Choose based on your specific requirements, available space, and installer recommendations.
Both Glow-worm 105-120 105-120 and Vaillant Combicompact vcw221h 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
