How efficient is the Rinnai M-Series?

The Rinnai M-Series 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 Rinnai M-Series cost to install?

The Rinnai M-Series typically costs $3,800 - $6,000 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 Rinnai M-Series worth it?

With 95% AFUE efficiency, you can expect to save approximately $221 annually compared to an 80% efficient boiler. Key features like Compact condensing and Simple installation make it a compelling choice. It's particularly well-suited for budget-conscious homes wanting rinnai quality.

What is the warranty on the Rinnai M-Series?

Rinnai provides a 5 years parts warranty and 12 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 Rinnai M-Series last?

With proper maintenance, the Rinnai M-Series should last 15-25 years or more. We recommend annual tune-ups to maximize lifespan and maintain peak efficiency.

Does the Rinnai M-Series qualify for PSEG Long Island rebates?

Yes! The Rinnai M-Series 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.

Back to Rinnai Boilers

Mid-Tier

Rinnai M-Series

Model Number: MSER

View on Rinnai Website

Entry-level Rinnai condensing boiler at accessible pricing.

95% AFUE

Condensing Boiler

60k - 175k BTU

Get Free Quote (516) 345-3911

Technical Specifications

Efficiency (AFUE)95%

Boiler Typecondensing

BTU Output Range60k - 175k BTU

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

Fuel TypeNatural Gas

Installed Price$3,800 - $6,000

*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

Budget-conscious homes wanting Rinnai quality

Expert Review: Rinnai M-Series

The Rinnai M-Series brings tankless water heating expertise to condensing boiler technology, delivering 95% AFUE efficiency with the reliability Rinnai has established over decades of American market presence.

Rinnai's extensive dealer network and parts availability distinguish the M-Series from smaller manufacturers. For Nassau County homeowners prioritizing long-term serviceability, the M-Series offers peace of mind that support will remain available throughout the equipment's life.

Our installation teams appreciate the M-Series' compact wall-mount design and direct vent capability. The boiler fits easily in utility closets and finished basements where floor space is at a premium.

For homes in Mineola, Garden City, and the surrounding communities, the M-Series provides efficient heating with the backing of a major manufacturer. Rinnai's technical support line resolves installation questions promptly, and local distributors maintain parts inventory.

The M-Series features modulating burner technology that adjusts output to match heating demand, reducing cycling and improving comfort consistency.

Practical consideration: Rinnai's established presence means any qualified HVAC contractor can service the M-Series, eliminating dependence on specialized dealer networks.