How efficient is the Bosch Greenstar 151i?

The Bosch Greenstar 151i operates at 95% AFUE (Annual Fuel Utilization Efficiency), meaning 95% of the fuel it consumes is converted directly into heat for your home. This is considered a high-efficiency boiler that can qualify for PSEG Long Island rebates.

How much does the Bosch Greenstar 151i cost to install?

The Bosch Greenstar 151i typically costs $4,500 - $7,500 for a complete installation in Nassau County, NY. This includes the boiler unit, professional installation by NATE-certified technicians, permits, and a standard warranty. Actual costs may vary based on your home's specific requirements, piping condition, and any necessary modifications.

Is the Bosch Greenstar 151i worth it?

Yes, the Bosch Greenstar 151i is our top pick from Bosch and offers excellent value for its tier. With 95% AFUE efficiency, you can expect to save approximately $221 annually compared to an 80% efficient boiler. Key features like Combi heating and DHW and Stainless steel heat exchanger make it a compelling choice. It's particularly well-suited for tech-savvy homeowners in jericho and syosset wanting wifi control.

What is the warranty on the Bosch Greenstar 151i?

Bosch provides a 5 years parts warranty and 10 years on the heat exchanger. For the best warranty protection, we recommend registering your boiler within 60 days of installation. Our installations include a workmanship guarantee on top of the manufacturer warranty.

How long does the Bosch Greenstar 151i last?

With proper maintenance, the Bosch Greenstar 151i should last 15-25 years or more. Premium-tier boilers like this one often exceed these expectations due to higher-quality components. We recommend annual tune-ups to maximize lifespan and maintain peak efficiency.

Does the Bosch Greenstar 151i qualify for PSEG Long Island rebates?

Yes! The Bosch Greenstar 151i with 95% AFUE qualifies for PSEG Long Island's efficiency rebates of $500-$1,000. We handle the rebate paperwork for all our Nassau County installations.

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Back to Bosch Boilers

Flagship Model

Top Pick

Bosch Greenstar 151i

Model Number: GS151i

View on Bosch Website

German-engineered combi boiler with modern WiFi connectivity.

95% AFUE

Combi Boiler

57k - 151k BTU

Get Free Quote (516) 345-3911

Technical Specifications

Efficiency (AFUE)95%

Boiler Typecombi

BTU Output Range57k - 151k BTU

PSEG Rebate EligibleYes ($500-$1,000)

Fuel TypeNatural Gas

Installed Price$4,500 - $7,500

*Prices include equipment, installation, and standard warranty. Actual cost may vary.

Estimated Annual Savings

Compared to an 80% efficient boiler

$221

per year

$4420

over 20 years

Get Your Custom Quote

Ideal For

Tech-savvy homeowners in Jericho and Syosset wanting WiFi control

Expert Review: Bosch Greenstar 151i

The Bosch Greenstar 151i combines German engineering heritage with modern WiFi connectivity. This 95% AFUE combi boiler provides both heating and domestic hot water in a compact wall-mounted package—perfect for space-conscious Nassau County homeowners in Jericho, Syosset, and Woodbury. The stainless steel heat exchanger handles Long Island's hard water better than aluminum alternatives.

WiFi-enabled controls allow monitoring and adjustment from anywhere via the Bosch app. For second homeowners or frequent travelers, the remote diagnostics provide peace of mind.

Bosch parts are readily available through Home Depot Pro and traditional distributors, providing accessible service options. The German engineering heritage translates to consistent quality and long-term reliability.

Best suited for homes under 2,500 square feet with 1-2 bathrooms. Annual descaling is essential given Long Island's water hardness—we recommend scheduling with your fall tune-up.

Our recommendation: The Greenstar 151i is ideal for tech-savvy homeowners who appreciate WiFi monitoring and want a trusted German brand. The combi functionality saves space by eliminating the separate water heater.