Detailed Comparison

Merlin 100/150 BF vs Servowarm Elite 21

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

Efficiency 1

81.3%

Efficiency 2

85.6%

Type 1

Non-Condensing

Type 2

Condensing

Merlin 100/150 BF

Merlin

81.3%

Type:Non-Condensing

Power:Unknown

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Head to Head

🏆 WINNER

Servowarm Elite 21

Servowarm

85.6%

Type:Condensing

Power:Unknown

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Efficiency & Performance

Efficiency Rating

Merlin

81.3%

BEST

Servowarm

85.6%

Power Output

Merlin

Unknown

Servowarm

Unknown

Fuel Type

Merlin

Oil

Servowarm

Gas

Boiler Type

Merlin

Non-Condensing

Servowarm

Condensing

Technical Specifications

Flue Type

Merlin

N/A

Servowarm

N/A

Method

Merlin

Non-Condensing

Servowarm

Condensing

Fan

Merlin

N/A

Servowarm

N/A

Manufacture Period

Merlin

N/A

Servowarm

N/A

Cost & Savings

Annual Savings

Merlin

£100-£250

BEST

Servowarm

£150-£300

Installation Cost

Merlin

Free (ECO4)

Servowarm

Free (ECO4)

Comparison Summary

Efficiency Champion

Servowarm Elite 21

Servowarm • 85.6%

Best Value

Both Boilers

Available FREE through ECO4 scheme

Our Recommendation

Servowarm Elite 21 leads with 85.6% efficiency, providing better performance and energy savings.

FREE Installation Available

Ready to Get Your Free Boiler?

Both Merlin 100/150 BF and Servowarm Elite 21 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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