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Residential Boilers for Efficient Home Heating

Fröling's residential cordwood and pellet wood boilers are designed in Austria, where strict regulations and cold winters demand top-tier performance. Fröling takes the hard work of heating with wood and makes it cleaner, easier, and more efficient, while lasting decades. Our team will work with you to help you choose the right boiler and system design for your home.
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Residential-Biomass-Boiler

What Are Residential Biomass Boiler Systems?

Residential biomass boilers, like the Fröling S3 Turbo and Fröling PE1, use renewable fuels like cordwood and pellets to provide whole home heat via any type of hydronic system. They offer a clean, sustainable alternative to oil, gas or electric systems, delivering long-term savings and greater energy independence.

Our Residential Biomass Boilers

Choose from premium European-built boilers designed for American homes. Engineered for performance and ease of use:

  • Pellet Boilers: Automated fueling and consistent heat output.
  • Wood Boilers: Traditional cordwood systems with modern efficiency.

Fröling S3 Turbo

s3-turbo
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Fröling PE1

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How to Choose the Right Residential Boiler

Fuel Type
Pellets (automated, low-maintenance) vs. cordwood (manual, lower fuel cost).
Automation 
Level
PE1 offers hands-free operation; S3 Turbo requires manual loading.
Home Size 
& Heat Needs
Match output (BTU/kW) to your home's square footage and climate.
Efficiency & Emissions
Look for EPA-certified units with high efficiency for clean, cost-effective heat.
Space
& Setup
Boiler room design and unique system drawings included with every purchase.

Boiler System Fuel Feeding Options

Choosing the right fuel feeding system can significantly impact the convenience and performance of your residential boiler. We offer multiple options tailored to your home’s size, fuel source availability, and automation preferences:
  • Manual Loading: The Fröling S3 Turbo cordwood boiler is ideal for homeowners who prefer a cost-effective, hands-on operation.
  • Automatic Pellet Feeding: The Fröling PE1 pellet boiler uses a pneumatic filling system to bring pellets automatically from an external silo into the boilers day-hopper. An auger then moves the pellets into the burn pot.
Each fuel delivery system is engineered for efficiency, combustion control, and ease of maintenance. We’ll help you choose the setup that fits your lifestyle and heating goals.
Biomas-Heating

Why Choose Biomass Heating?

Biomass boilers are environmentally friendly, eligible for renewable energy incentives, and offer these benefits:
  • Lower fuel costs over time
  • Renewable, carbon-neutral operation
  • High efficiency
  • Compatible with radiant baseboard, radiant floor and hydronic forced air systems.

Froling Wood Boilers provides the support you need:

  • Site planning and system design
  • Installation troubleshooting
  • Video commissioning call with your installer
  • Ongoing parts support throughout the life of your boiler
Residential Installation_Photo

Key Differences Between
Fröling S3 Turbo and Fröling PE1

Feature Fröling S3 Turbo (Wood Gasification) Fröling PE1 (Automatic Pellet)
Fuel Type & Range Cordwood up to 22 in; Output from 96K-164K BTU/hr (30-50 kW) Wood pellets; Output from 68K-119K BTU/hr (20-35 kW)
Combustion & Control Tech Lambda-controlled downdraft gasification; induced-draft fan; carbonization gas extractor for smokeless intake; WOS turbulators and Lambdatronic control Fully automatic pellet system: hot-surface ignition, sliding grate ash cleaning, broadband lambda probe, speed-controlled induced-draft fan; Lambdatronic P 3200 touchscreen
Automation & Convenience Manual loading; auto fan & damper regulation; heat exchanger lever cleaning; smoke extractor; 1 to 2 fills per day Plug-and-play setup; automatic ignition; pellet vacuum feed; sliding grate and ash removal; remote connect via Fröling Connect
Efficiency & Emissions EPA-certified to 2020 emissions; high-temperature combustion for clean burn; very low emissions EPA-certified; low particulate emissions and efficiency >80%
Maintenance & Ash Handling Side & front ash doors; external heat-exchanger cleaning; WOS reduces brushing; occasional cleaning required Automatic sliding grate ash removal into closed container; ash removal every 2-4 weeks; easy-to-remove ash box
Size & Installation Indoor model; heavy insulation; large firebox; thermal storage integration Compact footprint for easy assembly in tight spaces
Use Case & Suitability Ideal for users with access to wood, seeking high efficiency and low emissions Ideal for fully automated heating in homes with minimal interaction

FAQs

The Fröling S3 Turbo indoor cordwood boiler and the Fröling PE1 indoor pellet wood boiler are both great options for any homeowner. Our team will work with you to determine the best fit for you and your family based on your needs, space and lifestyle.
Fröling boilers can match and even outperform a lot of oil and propane boilers in efficiency, but the differences show up most in fuel cost, long term savings, emissions and sustainability.
Costs vary based on system size, installation complexity, and the type of biomass boiler. While upfront costs are higher than traditional systems, homeowners often recover the investment through fuel savings and potential rebates.
We recommend 2 annual cleanings per year for the Fröling S3 Turbo cordwood boiler and Fröling PE1 pellet boiler. Once in the middle of the heating season and once at the end of the heating season.

What Our Clients Say About Us

Jacob from Vermont: S3 Turbo 30 w/ 600 gallons of Thermal Storage
“In 2023 I purchased a Fröling S3 Turbo 30 cordwood boiler with 2x300gal bulk storage tanks and installed the system to feed a multi-zone hydronic radiant heating system. Simply said, the Fröling is a wonderful wood boiler. With one load, I heat my home for 12-24 hours, depending on the outside temperature, and on average I'm closer to the 24-hour frequency. My home is 1500 square feet, and I keep my home around 62-64 degrees. The system is a wise choice for wood burners. By storing heat in bulk water tanks, S3 Turbo burns wood hot and fast, which is more efficient, and then uses the water tanks like batteries. It's a well thought out system and a pleasure to own; I love mine.”
Kevin from Maine: PE1 20 w/ Cube Pellet Storage
“I became interested in wood boilers due to the ability to provide all the heat and domestic hot water for my home without having to use propane or electricity. Mark and Brooks were very helpful in helping me create a system that fit my needs and helped me better understand how the system operates. They provided ample communication with me throughout the planning, ordering, and shipping process.”
Kris from Montana: S3 Turbo 50 w/ 800gallons of Thermal Storage
“I became interested in wood boilers due to the ability to provide all the heat and domestic hot water for my home without having to use propane or electricity. Mark and Brooks were very helpful in helping me create a system that fit my needs and helped me better understand how the system operates. They provided ample communication with me throughout the planning, ordering, and shipping process.”
Brian from Missouri: S3 Turbo 30 w/ 500gallons of Thermal Storage
“I love my Fröling boiler! I have an S3 turbo 30 with 500 gallons of thermal storage. I’m located in the middle of Missouri and I'm heating a 2500 square foot house and a 600 square foot apartment/garage with only 3-4 cords of wood annually.”
Jeremy from Maine: S3 Turbo 50 w/ 1000gallons of Thermal Storage
“I'm very excited to have made the investment in my new Fröling Wood Boiler. For many years I've heated my house with wood, most recently with a Tarm solo 60 gasification boiler. I can already tell that I'll get more heat out of each batch of wood. Every single part of the transaction with Froling Wood Boilers, went smoothly. I highly recommend this company for your wood heating needs.”
Breadtree Farms/Noah from New York - S3 Turbo 50 w/ 1200gallons of Thermal Storage
“We are operating one of the largest commercial agroforestry operations in the Northeast, and our cycles of annual stewardship often result in a lot of available firewood, as we manage hedgerows, improve forest stands, and (in the future) make thinning cuts in our chestnut and hickory orchards. We have been very happy to switch from fuel oil to the Fröling S3 Turbo, which is saving us thousands of dollars a year, substantially reducing our carbon footprint, and increasing the resiliency and energy independence of our operation.”
Klarissa and Byrke from Montana: S3 Turbo 50 w/ 800gallons of Thermal Storage
“Our Fröling S3 Turbo 50 is an excellent system! Easy to use, easy to clean and very efficient.”
Gordon from Wisconsin: S3 Turbo 30 w/ 800gallons of Thermal Storage
“I have used my Fröling boiler for the past 4 seasons and I could not be more pleased. We have all in floor heat, 3400 sq ft, and we have never been more comfortable. I have burned wood for 45 years and what I like best is: with the water heat storage we burn wood cleaner, safer, and more efficiently. No more of too much heat or not enough heat, it’s like heat on demand! This system enables us to heat the shoulder months of November and April efficiently, with one burn every 2-3 days. Then from December through March we do 1-2 burns a day allowing us to match our heat demand accordingly. In my opinion, the Fröling S3 Turbo is the best wood heating system out there!”
Doug from Connecticut: S3 Turbo 50 w/ 1000gallons of Thermal Storage
"I was a previous wood boiler owner for the past 16 years. I decided to upgrade my boiler and after researching and speaking with Brooks and Mark, I decided to purchase a Fröling S3 Turbo boiler. They both agreed that this unit would adapt flawlessly to my preexisting system. I would like to thank Froling Wood Boilers, especially Brooks, Mark and Kristin for their excellent and courteous customer service."
Richard from Michigan - PE1 35
"I’m in the second season of using my Fröling PE1 pellet boiler and I love it!"
Todd from Colorado: S3 Turbo 50 w/ 800gallons of Thermal Storage
“I wanted to take this opportunity to thank everyone at Froling Wood Boilers, especially Brooks for all the over the phone support. They were always there to answer my questions and offer solutions. Once I texted Brooks after hours with a question expecting to hear back the next day. I was surprised when he called me back right away while he was at a baseball game! Now that is the definition of Customer Support! I can't wait to throw in the first log this winter and fire the boiler up to heat my house.”
Carl from Vermont: S3 Turbo 50 w/ 800 gallons of Thermal Storage
“I love my Fröling S3 Turbo. I am burning half the wood versus my last wood boiler – 10 cords vs about 5 cords.”
Michael from New York: S3 Turbo 30 w/ 400 gallons of Thermal Storage
I’d like to thank Brooks for his assistance with purchasing the boiler. He made the whole process smooth and seamless. Pickup was easy and he was always available to answer any of my questions.

Get in Touch!

Claim your energy independence and start saving with the clean-burning, efficient Fröling products.

Get in touch with us today for help finding the best model for your needs.