Boiler Efficiency
Most homeowners are interested in maximizing the value of their dollar. High efficiency boilers are just one way for homeowners to cut costs and maximize performance.
What is boiler efficiency?
Simply put, boiler efficiency is the measurement of the amount of fuel that’s converted to energy to heat your home or water. You will see this referred to as annual fuel utilization efficiency or AFUE. It’s a percentage of how much heat a boiler emits versus how much fossil fuel is consumed. A boiler system with a 95% AFUE efficiency rating indicates that 95% of the fuel consumed is converted to heat – that's a great percentage! If you would like more detailed information regarding AFUE, visit Energy.gov.

What is a high efficiency boiler?
A high efficiency boiler is a condensing boiler that provides more heat while using less energy than other systems. The combustion process in these units condenses flue gases in a second heat exchanger for extra energy efficiency. The stainless-steel heat exchanger used in Laars high efficiency boilers also adds to the overall life of these units.

ENERGY STAR® Certification
ENERGY STAR® certified boilers provide high-efficiency heating that lowers utility costs and protects the environment. By meeting strict EPA guidelines, these systems ensure your home stays comfortable while significantly reducing your carbon footprint.
High-Efficiency ENERGY STAR® Certified Boilers by Laars
Explore our wide selection of ENERGY STAR® certified heating solutions. Laars offers a diverse range of high-efficiency gas boilers and combi boilers designed to lower your energy bills and reduce your environmental footprint. Because these units meet strict EPA efficiency standards, they are often eligible for significant local and national gas boiler rebates.

Why Choose Laars Residential Boilers?
Laars provides a complete line of residential boilers tailored to the space and water heating demands of the modern home. Whether you need a dedicated heating system or an all-in-one domestic hot water solution, our high-efficiency models offer:
- Reduced Energy Costs: Lower fuel consumption through advanced engineering.
- Rebate Eligibility: Access to financial incentives via EnergyStar.gov standards.
- Versatile Installation: Compact designs that maximize your home's square footage.
Spotlight: The Laars FT Series
The Laars FT Series is available in both Floor and Wall-mount configurations. These high-efficiency residential boilers are offered as standalone heating units or space-saving combination (combi) units.
- Maximum Efficiency: ENERGY STAR® certified performance for peak reliability.
- Space-Saving Design: Ideal for modern basements or utility closets, requiring minimal to no floor space.
- Dual Functionality: FT Series combi units provide both whole-home heating and on-demand hot water.
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