Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Vaillant
Unical Alkon 28 SC HE
Unical • 88.5%
Both Boilers
Available FREE through ECO4 scheme
Unical Alkon 28 SC HE offers superior efficiency at 88.5%, making it the better choice for long-term savings.
Both Unical Alkon 28 SC HE and Vaillant Aquaplus 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
