Detailed Comparison

Grant Combi 70 V3 vs Navien NCB-24LDWE

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

Efficiency 1

83.0%

Efficiency 2

89.0%

Type 1

Non-Condensing

Type 2

Condensing

Grant Combi 70 V3

Grant

83.0%

Type:Non-Condensing

Power:Unknown

View Full Details

Head to Head

🏆 WINNER

Navien NCB-24LDWE

Navien

89.0%

Type:Condensing

Power:Unknown

View Full Details

Efficiency & Performance

Efficiency Rating

Grant

83.0%

BEST

Navien

89.0%

Power Output

Grant

Unknown

Navien

Unknown

Fuel Type

Grant

Oil

Navien

Gas

Boiler Type

Grant

Non-Condensing

Navien

Condensing

Technical Specifications

Flue Type

Grant

N/A

Navien

N/A

Method

Grant

Non-Condensing

Navien

Condensing

Fan

Grant

N/A

Navien

N/A

Manufacture Period

Grant

N/A

Navien

N/A

Cost & Savings

Annual Savings

Grant

£100-£250

BEST

Navien

£150-£300

Installation Cost

Grant

Free (ECO4)

Navien

Free (ECO4)

Comparison Summary

Efficiency Champion

Navien NCB-24LDWE

Navien • 89.0%

Best Value

Both Boilers

Available FREE through ECO4 scheme

Our Recommendation

Navien NCB-24LDWE leads with 89.0% efficiency, providing better performance and energy savings.

FREE Installation Available

Ready to Get Your Free Boiler?

Both Grant Combi 70 V3 and Navien NCB-24LDWE 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

Check Your Eligibility Apply Now

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

ECO4 Certified•Ofgem Regulated•Gas Safe Registered•Free Survey