Wood Boilers for Reliable, Efficient Central Heating

Explore modern indoor wood boilers engineered for comfort, efficiency, and long-term savings—built for hydronic heat and backed by expert support.

Based in Keene, New Hampshire, we import and distribute Fröling’s world-renowned Austrian-made boilers, offering a full line of EPA-certified wood, pellet, and chip systems. Now led by Kristin Froling, our team combines deep industry knowledge, hands-on service, and a commitment to sustainability.

Types of Boilers We Offer

Cordwood Boilers

The Fröling S3 Turbo is a highly efficient indoor wood boiler that delivers clean heat with low emissions. Its large loading chamber and smart combustion controls make it easy to use and maintain.

Wood Pellet Boilers

Wood pellet boilers offer clean, automated heating using compressed wood pellets. Fröling systems provide high efficiency, low emissions, and minimal user input, perfect for residential or commercial use.

Wood Chip Boilers

Ideal for larger buildings or campuses, wood chip boilers burn local, low-cost fuel with maximum efficiency. Fröling’s chip systems are durable, automated, and built for long-term savings.

Residential Boilers

Fröling’s residential wood boilers deliver reliable indoor heating with renewable fuel. Easy to operate and install, they’re a sustainable upgrade for homes of all sizes.

Commercial Boilers

Built for high-demand spaces, Fröling’s commercial boilers offer scalable heating with advanced controls. Great for schools, municipal buildings, and businesses seeking energy independence.

Compare Our Boiler Options

Froling offers a full range of indoor wood boilers built for residential, commercial, and institutional spaces. Each system is engineered for high efficiency, clean combustion, and long-term reliability.

Use the comparison below to find the best match for your fuel type, heating demand, and installation space.

Boiler Type	Boiler Model	Fuel Source	Ideal For
Cordwood Boiler	Fröling S3 Turbo 30 & 50	Cordwood	Homes and Small Commercial Buildings
Pellet Wood Boiler	Fröling PE1 20 & 35 Fröling P4 100 Fröling T4 150 Froling TM 500 Fröling LM 980	Wood Pellets	Homes, Schools & Municipal Buildings
Wood Chip Boiler	Fröling T4 150 Fröling TM 500 Fröling LM 980	Wood Chips	Schools, Municipal Buildings, Large Scale Green Houses
Residential Boilers	Fröling S3 Turbo 30 & 50 Fröling PE1 20 & 35	Cordwood & Pellets	Small to Large Size Homes
Commercial Boilers	Fröling P4 100 Fröling T4 150 Fröling TM 500 Fröling LM 980	Pellets and Wood Chips	Small to Large size businesses, including schools, healthcare facilities and municipal buildings

Who Are These Wood Boiler Heating Systems Designed For?

Our cordwood, pellet and wood chip boiler systems are designed for homeowners and businesses, small and large, who are looking for a sustainable, eco-friending heating system. Our systems burn locally sourced fuel which dramatically helps cut long term fuel costs compared to oil, gas and electricity.

Benefits of a Wood-Burning Heating System

Switching to a wood-burning heating system offers more than just comfort, it’s a smart investment in your home, wallet, and the environment. Discover the key advantages of choosing a high-efficiency wood boiler for clean, cost-effective, and independent heating.

Major Fuel Savings

Heating with wood costs significantly less than oil, propane, or electricity. Our high-efficiency boilers can save thousands per year.

Environmentally Smart

Wood is renewable and nearly carbon-neutral. EPA-certified gasification models burn wood almost completely, leaving minimal ash and emissions.

Clean Central Heat

Unlike indoor stoves, wood boilers keep smoke and mess contained in a sealed system—no more ash in the living room.

Energy Independence

Use locally harvested wood to heat your home instead of relying on volatile energy markets.

Choosing the Right Fit: What Really Matters

1.

Sizing &
BTU Load 

Your biomass boiler should match your home or buildings heat demand. Our team can size systems from 68,000 BTU/hour to well over 10 Million BTU/hour with cascaded systems.

2.

Fuel Type & Wood Storage

Consider what’s available: split cordwood, pellets or wood chips, and whether you have dry indoor storage.

3.

Efficiency & Emissions

Our EPA certified wood boilers are ultra efficient and have low emissions.

4.

Rebates & Tax Incentives

Our systems qualify for many local, state and federal programs. Go to DSIREUSA.org to see what’s available to you in your area.

Not sure where to start?

Our experts can help you size your system, choose the right fuel type, and maximize available rebates.

What Our Clients Say About Us

Angela says:

“Happy with our new wood pellet boiler. While it is very expensive to install this boiler, both state and federal rebates may be available. Also, over the long term it is much cheaper to heat with pellets than gas or oil. Froling was great to deal with. Professional, responsive, on time. Definitely recommend Froling and their products.”

Gretchen says:

“Great experience when they installed my residential pellet boiler. All the workers were very respectful, neat and polite. Mark and everyone was so helpful in the process of planning and getting this done, on time, with minimal disruptions.”

Invest in Fröling’s Quality

Fröling wood boilers combine Austrian precision, top-tier materials, and smart technology to deliver reliable, efficient, and low-maintenance heating. Certified for outstanding emissions and backed by expert support, they’re built to perform in any setting, residential or commercial.

Precision-engineered in Austria for reliability, efficiency, and long service life.

Smart controls and remote access for hassle-free, modern operation.

Award-winning efficiency and emissions control, including Ecolabel and Blue Angel certifications.

Premium materials and build standards ensure durability in all climates.

Industry-leading automation reduces maintenance and maximizes performance.

Backed by expert support and a proven track record in both residential and commercial applications.

Installation, Storage & Maintenance Essentials

Aspect	Key Considerations
Installation	Indoor placement Requires proper clearances and venting Always paired with thermal storage
Fuel Storage	Needs dry, sheltered area for cordwood, pellets or wood chips Fuel access should be near boiler for convenience Sizing depends on usage frequency and climate
Maintenance	Routine ash removal Inspect gaskets, pumps, and controls Clean heat exchanger surfaces regularly for efficiency

FAQs About Wood Boilers

What is a Wood-Burning Boiler?

A wood-burning boiler is a heating system that burns wood to produce hot water or steam, which is then circulated through your home or building's heating system.

How Does a Wood Boiler Work?

Wood is burned in a firebox, heating water in the boiler's heat exchanger. The hot water is then distributed via pipes to radiators, underfloor heating, or domestic hot water systems.

Why Is a Wood Boiler Not a Stove?

Unlike a stove, which directly heats a room, a wood boiler heats water for whole-home heating or hot water supply, providing a more efficient and centralized heating solution.

Why is an Indoor Wood Boiler Not an Indoor Wood Furnace?

An indoor wood boiler heats water for circulation throughout a building, while a wood furnace typically heats air directly. Boilers offer more versatile and consistent heating.

How long do wood-burning boilers last?

With proper maintenance, a quality wood-burning boiler can last 20 years or more.

How much does it cost to put in a wood boiler?

Installation costs depend on the size of the system, site conditions, and any additional equipment needed. Because every installation is unique, costs can vary widely.

Your Source for Quality Fröling Wood Boiler Parts

Keep your Fröling wood boiler running smoothly with our full range of genuine replacement parts and accessories. From heat exchangers to controls, find everything you need for maintenance and repairs, all designed for quality and compatibility.