Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics
Head to Head
Potterton International Heating
Halstead 40h
Halstead • 65.0%
Both Boilers
Available FREE through ECO4 scheme
Halstead 40h offers superior efficiency at 65.0%, making it the better choice for long-term savings.
Both Halstead 40h and Potterton International Heating 35Cf 35cf 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
