Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Boulter
ACV HeatMaster 35TC P
ACV • 90.7%
Both Boilers
Available FREE through ECO4 scheme
ACV HeatMaster 35TC P offers superior efficiency at 90.7%, making it the better choice for long-term savings.
Both ACV HeatMaster 35TC P and Boulter Bonus 40/65 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
