We use cookies to improve your experience, analyze site usage, and assist in our marketing efforts. You can accept all cookies, reject non-essential cookies, or manage your preferences.
Detailed side-by-side comparison of efficiency ratings, specifications, and performance
Boulter
British / Scottish Gas
Efficiency Winner
Boulter Bonus 65/90A
Best Value
Both boilers are available free through the ECO4 scheme
Both Boulter Bonus 65/90A and British / Scottish Gas RD1 3100 are available free through the ECO4 scheme. Check your eligibility and apply today.
