Detailed Comparison

Gledhill GB15 AGB5015 vs NST Sogno Eli 8-22 M

Comprehensive side-by-side analysis of efficiency ratings, specifications, and performance metrics

Efficiency 1

88.8%

Efficiency 2

80.3%

Type 1

Condensing

Type 2

Non-Condensing

🏆 WINNER

Gledhill GB15 AGB5015

Gledhill

88.8%

Type:Condensing

Power:Unknown

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Head to Head

NST Sogno Eli 8-22 M

NST

80.3%

Type:Non-Condensing

Power:Unknown

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Efficiency & Performance

Efficiency Rating

BEST

Gledhill

88.8%

NST

80.3%

Power Output

Gledhill

Unknown

NST

Unknown

Fuel Type

Gledhill

Gas

NST

Gas

Boiler Type

Gledhill

Condensing

NST

Non-Condensing

Technical Specifications

Flue Type

Gledhill

N/A

NST

N/A

Method

Gledhill

Condensing

NST

Non-Condensing

Fan

Gledhill

N/A

NST

N/A

Manufacture Period

Gledhill

N/A

NST

N/A

Cost & Savings

Annual Savings

BEST

Gledhill

£150-£300

NST

£100-£250

Installation Cost

Gledhill

Free (ECO4)

NST

Free (ECO4)

Comparison Summary

Efficiency Champion

Gledhill GB15 AGB5015

Gledhill • 88.8%

Best Value

Both Boilers

Available FREE through ECO4 scheme

Our Recommendation

Gledhill GB15 AGB5015 offers superior efficiency at 88.8%, making it the better choice for long-term savings.

FREE Installation Available

Ready to Get Your Free Boiler?

Both Gledhill GB15 AGB5015 and NST Sogno Eli 8-22 M are available at no cost through the government ECO4 scheme. Take the next step today.

💰

£0 Installation Cost

Completely free through ECO4

⚡

High Efficiency

Save hundreds on heating bills

🏆

Quality Guaranteed

Professional installation included

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✓ Government Approved Scheme ✓ No Hidden Costs ✓ Professional Installation ✓ Energy Efficient

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