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!

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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?

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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.