Detailed Comparison

Evo HE 12 HE 12 vs Gledhill GB20 AGB5020

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

Efficiency 1

88.7%

Efficiency 2

88.9%

Type 1

Conventional

Type 2

Condensing

Evo HE 12 HE 12

Evo

88.7%

Type:Conventional

Power:12.7 - 12.7

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Head to Head

🏆 WINNER

Gledhill GB20 AGB5020

Gledhill

88.9%

Type:Condensing

Power:Unknown

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Efficiency & Performance

Efficiency Rating

Evo

88.7%

BEST

Gledhill

88.9%

Power Output

Evo

12.7 - 12.7

Gledhill

Unknown

Fuel Type

Evo

Gas

Gledhill

Gas

Boiler Type

Evo

Conventional

Gledhill

Condensing

Technical Specifications

Flue Type

Evo

Room-Sealed

Gledhill

N/A

Method

Evo

Condensing

Gledhill

Condensing

Fan

Evo

Fan Assisted

Gledhill

N/A

Manufacture Period

Evo

2004 - current

Gledhill

N/A

Cost & Savings

Annual Savings

Evo

£150-£300

BEST

Gledhill

£150-£300

Installation Cost

Evo

Free (ECO4)

Gledhill

Free (ECO4)

Comparison Summary

Efficiency Champion

Gledhill GB20 AGB5020

Gledhill • 88.9%

Best Value

Both Boilers

Available FREE through ECO4 scheme

Our Recommendation

Gledhill GB20 AGB5020 leads with 88.9% efficiency, providing better performance and energy savings.

FREE Installation Available

Ready to Get Your Free Boiler?

Both Evo HE 12 HE 12 and Gledhill GB20 AGB5020 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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