A O Smith UB70 G vs Boxer C28 28kW Combi Boiler

Detailed side-by-side comparison of efficiency ratings, specifications, and performance

A O Smith UB70 G

A O Smith

89.5%

Boxer C28 28kW Combi Boiler

Boxer

78.9%

Efficiency & Performance

89.5%

78.9%

60.1 - 60.1

24.3 - 24.3

Gas

Conventional

Combi

Technical Specifications

Open or Room-Sealed

Room-Sealed

Condensing

Non-Condensing

Fan Assisted

2011 - current

2002 - current

Cost & Savings

£150-£300

£50-£200

Free (ECO4)

Comparison Summary

Efficiency Winner

A O Smith UB70 G

Best Value

Both boilers are available free through the ECO4 scheme

Ready to Get Your Free Boiler?

Both A O Smith UB70 G and Boxer C28 28kW Combi Boiler are available free through the ECO4 scheme. Check your eligibility and apply today.