Caluwe and its partners will walk you through the sales process, from start to finish. This includes initial site visits, design and specification of system components, firm price quoting, and preparation of the written quote.

Caluwe will meet with the owner to explain the entire system and details of pricing. Some components require order lead times, and a deposit will be required to confirm the project and ordering.

BIOWIN XL WITH BULK PELLET FEED SYSTEM, COMMERCIAL NON-EPA, Windhager, biomass energy systems, wood pellet boiler, wood chip boiler, Caluwe, Inc. Boston, MA


Caluwe can design and engineer systems to meet your diverse energy needs, from the smallest residential boiler to industrial process heat applications. System design and engineering includes fuel storage and conveying, boiler, controls, thermal storage, and all utility connections for hot water, hot air or steam applications.

Design can also include auxiliary buildings or containers for all system components, if not located within an existing structure. Designs can integrate with existing heating systems.


Caluwe will oversee the entire installation process, acting as general contractor. Caluwe may engage experienced subcontractors for demolition (if necessary), heavy installation, electrical connections, plumbing and other integration with the existing or new building systems.

thermal storage tank, biomass, biofuels, carbon neutral, renewable energy, Caluwe, Inc, Boston, MA


All Caluwe installations are serviced by capable technicians trained by Caluwe. We are prepared to hit the road when you need help. Caluwe will back every project with a service agreement that can be tailored to the customer’s needs and interests. Caluwe can access your system performance through remote, real time internet connections so that we can monitor its performance around the clock. All Caluwe installations are warrantied. Photo of Caluwe service van.
Caluwe stocks a full range of spare parts including typical wear parts. When you have questions about your system, Caluwe is here to support you. The same technicians who installed your system will be available with any questions about operation and maintenance. Just call us 24/7/365.


With a heat sales agreement, Caluwe will own and operate the biomass fueled energy system and sell heat to the customer. This allows the customer to forego most or all of the initial capital cost. Heat sales agreements can be structured in a variety of ways, but always with the objective of providing the customer with certainty in their future energy costs.
Heat sales agreements can also be structured with a “lease to own” option, whereby the customer eventually takes full ownership of the system. Talk to Caluwe today about whether this option is right for you!

wood chip boiler, wood pellet boiler, biomass heating equipment, biofuels, carbon neutral, renewable energy, wood pellet furnace, wood chip furnace, combined heat and energy, Caluwe, Inc, Boston, MA


Talk to Caluwe today about state and federal grants, rebates, and performance incentives (such as thermal renewable energy certificates) that can help with the capital and operating cost of your system. These include federal programs such as:

  • US Forest Service Wood Innovation Grant program
  • US Forest Service Community Wood Program
  • USDA Rural Energy for America Program
  • USDA Community Facilities Grant and Loan Program


State programs vary by state, but Caluwe has all the latest information on assistance that may be available in your state. Many states provide incentives based on the amount of heat you generate from renewable energy resources, including biomass. These are called thermal renewable energy certificates (“T-RECs”).
For example, New Hampshire, Maine and Massachusetts all have T-REC programs with varying technical requirements, but each recognizes advanced biomass heating as eligible. These programs provide on-going payments based on your heat production which can be significant. Learn more today by contacting Caluwe! Links to State T-REC Programs?

woodpellets, residential biomass boiler systems, biomass, renewable energy, biofuels, sustainable energy sources, renewable energy installation, biomass boiler servicing and installation, Caluwe, Inc, Burlington, MA


Many customers choose to finance their wood pellet boiler or wood chip boiler installation with either an FHA Title 1 Home Improvement Loan, or by working with a local energy-financing program. Some rates are as low as 0%!

FHA Title 1 Home Improvement Loan programs can offer many benefits not available through traditional financing options. These loans typically require no equity in your home, are FHA insured, and don’t require appraisals; interest may be tax deductible to the homeowner, and there is no pre-payment penalty.

Federal incentives for clean energy, including modern wood energy (06/13/2023)

In 2021 and 2022, the Biden Administration enacted sweeping climate and energy legislation through the Inflation Reduction Act (IRA) and the Bipartisan Infrastructure Law (BIL) that set-in motion a wide range of new or enhanced federal incentives for clean energy, including modern wood energy.  These incentives take the form of investment tax credits, production credits, and increased grant funding through several federal agencies.  This summary reviews incentives and funding specifically as they relate to using wood biomass to make heat or combined heat and power in residential, commercial, and industrial applications.  The programs are hyperlinked for more information.

At the residential level, the IRA authorized an investment tax credit for modern wood heating appliances that can meet a minimum output efficiency of 75% measured at the high heat value.  The one-time credit of 30% may be taken against the installed capital cost of wood stoves, pellets stove, and wood chip and pellet boilers.  The credit is capped at $2,000, is authorized through 2032, and can only be taken to the extent that the homeowner has an income tax liability.  Caluwe, Inc. carries several Windhager wood pellet and chip boilers that qualify for the credit.

At the commercial and industrial level, there are several incentives and grant programs that high performing wood systems can qualify for.  These include:

·         Rural Energy for America Program

·         Community Wood Energy and Wood Innovation Program (Community Wood Program)

·         Community Facilities Grant and Loan Program

·         Combined Heat and Power Investment Tax Credit under section 45

·         Carbon Capture and Reduction Tax Credit under section 45Q

·         Modified Accelerated Cost Recovery System (MACRS)


Rural Energy for America Program (REAP)

REAP is administered by USDA Rural Development.  It provides grants on a competitive basis of up to 25% of the installed capital cost, up to $500,000.  Eligible applicants are agricultural enterprises and rural small businesses.  REAP also provides low interest loans up to $10 million.  For larger projects, an independently developed feasibility study is required.  Applications are accepted up to twice per year.  REAP received a significant increase in funding authorization through the IRA.  Caluwe Inc. has been involved in several projects that were awarded REAP grants.


Community Wood Energy and Wood Innovation Program (Community Wood Program, or CWP)

CWP is administered by the USDA Forest Service.  It provides grants on a competitive basis of up to $1 million (with special circumstances for higher grant awards) on a leveraged funding basis.  CWP can fund community scaled wood heating/CHP projects as well as projects proposing new innovative uses of wood.  There is one application round per year.  CWP received much higher funding as a result of the IRA and BIL.  In the last three years, CWP has helped fund several projects developed by Caluwe Inc.


The USDA Forest Service also administers a program called the Wood Innovations Program which has provided grants of up to $300,000 for modern wood heating systems in the last.  Caluwe projects have received a number of these grants.


Community Facilities Grant and Loan Program

USDA Rural Development also administers a community facilities grant and loan program to which public entities, such as municipalities, school districts, and non-profits can apply.  This program provides affordable funding to develop essential community facilities in rural areas that can include modern wood heating infrastructure.  Low-income communities are given preference.  Grants can be for up to 75% of the installed capital cost.  Low interest loans are also available.


Combined Heat and Power Investment Tax Credit under section 48

The IRA greatly enhanced the value of the investment tax credit for wood fired combined heat and power, which is now up to 30% and potentially 40% of installed capital cost if the project can meet “American made/domestic content” requirements.  Previously the credit was only 10%.  The IRA also allows certain businesses and non-profit or public entities to take the credit as a onetime cash payment.  The new credit provisions apply to projects that begin construction before January 1, 2025.  After that date a new incentive structure will be implemented that structures the amount of credit based on the extent to which the technology reduces greenhouse gas emissions.  No determination has yet been made whether or if wood systems will qualify under this new construct.


Modified Accelerated Cost Recovery System (MACRS)

One benefit of the enhanced biomass CHP credit is that these systems now also qualify for modified accelerated cost recovery, or “bonus depreciation.”  Businesses may recover investments in wood fired CHP property through depreciation deductions over a five-year period.  This bonus depreciation is set at 80% in 2023 and steps down 20% each year thereafter.


Carbon Capture and Reduction Tax Credit under section 45Q

The IRA greatly enhanced the value of the carbon capture and reduction tax credit.  Wood systems cannot directly qualify for this credit.  However, wood fuels can be treated with new carbon oxide sequestration technologies such as those developed by CBA Environmental Services that reduce their greenhouse gas emissions upon combustion.  USFS Wood Innovations Project Detail Report ( The treated fuels qualify for a generous tax credit which can greatly reduce operating costs for wood fired boilers that use the fuel.  The US Department of Energy Office of Clean Energy Demonstrations is providing grants to help industries install these technologies.

There are many more clean energy incentive and grant programs that were authorized through the IRA and BIL, some of which may be applicable to modern wood energy systems.  Details are still forthcoming from the Biden Administration.  Readers are encouraged to consult with a qualified tax accountant or attorney for the latest information and how to qualify.