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New Propane System Installations for Your Heating Needs

Frederick Brothers Oil & Propane, a third-generation family-owned business operating since 1946, specializes in providing reliable and efficient propane installations to multiple locations the greater Southern Maine region.


Whether you need a new Rinnai Heater or Viessmann Boiler, our expert team ensures that your heating needs are met with precision and care. With competitive pricing, free estimates, and 24/7 emergency delivery, we aim to keep your home warm and safe. Contact us today to learn more.


Why You Need Professional Propane System Installations

Choosing professional propane installations is essential for the safety and efficiency of your heating systems. Our team understands the intricacies involved and provides service that:


  • Ensures proper and safe installation
  • Maximizes the efficiency of your heating system
  • Reduces the risk of potential hazards
  • Offers peace of mind knowing the job is done right
  • Increases the lifespan of your heating equipment


Reach out to Frederick Bros to secure professional propane installation services today.


Benefits of Choosing Frederick Brothers Oil & Propane

Our commitment to excellence and customer satisfaction sets us apart. We provide a range of benefits that make us the preferred choice for propane installations.


  • Competitive pricing on propane and heating oil
  • 24/7 emergency delivery service
  • Free estimates for installations
  • Family-owned and -operated for three generations
  • Decades of experience since 1946


Call Frederick Bros to experience these benefits and more for your heating needs.


Contact Us

If you are looking for reliable and professional propane installations, Frederick Bros is here to help. Our team is ready to meet your heating needs efficiently and effectively. Get in touch with us to schedule your service or to receive a free estimate.

Rinnai Propane & Natural Gas Heaters

Rinnai heaters are an affordable, energy efficient solution to heating any size room. Benefits include:


  • Intelligent heating with up to 82% AFUE efficiency saves energy
  • Modulating gas valve and variable-speed blower for consistent heat
  • Programmable thermostat with timer function and child safety lock
  • Easy installation requires no ductwork
  • Durable stainless steel heat exchanger for reliable comfort
  • On-board self-diagnostic for easy troubleshooting
  • Auto restart for power outages
  • Setback with frost protection
  • Cool-to-the-touch cabinet


Explore our product line below and call Frederick Bros today for a free estimate!

  • Rinnai EX-38

    • 1300-1500 sq/ft
    • Max BTU rating – 38,400
    • Dimensions = 26″H x 36″W x 13″D

  • Rinnai EX-22

    • 700-900 sq/ft
    • Max BTU rating – 21,500
    • Dimensions = 22.875″H x 29.875″W x 10.125″D

  • Rinnai EX-17

    • 400-700 sq/ft
    • Max BTU rating – 16,700
    • Dimensions = 22.875″H x 29.875″W x 10.125″D

  • Rinnai EX-11

    • 300 sq/ft
    • Max BTU rating – 11,000
    • Dimensions = 27.375″H x 18.25 “W x 10.125″D

  • Rinnai EX-08

    • 200 sq/ft
    • Max BTU rating – 8,000
    • Dimensions = 27.375″H x 18.25 “W x 10.125″D

  • Rinnai Continuum (Hot Water)

    An endless supply of hot water, whenever you need it—even for multiple tasks at the same time. Tankless Water Heaters revolutionize comfort, energy efficiency and convenience.

Viessman Boilers

With a limited residential lifetime warranty, you can be sure your investment will deliver long-lasting, value year after year. Benefits include:


  • Vitodens 100-W, B1HA space heating boiler and Vitodens 100-W, B1KA combi boiler fits any home and budget with high performance at an attractive price.
  • Outstanding efficiency of 95% A.F.U.E. on all models.
  • Low-emission combustion with fully-modulating Viessmann stainless steel MatriX cylinder burner for propane.
  • User-friendly backlit LCD touchscreen boiler control.
  • Lasting performance with proven Viessmann stainless steel Inox-Radial heat exchanger constructed to CSA B51 and ASME Section IV.
  • Suitable for altitude levels of up to 10,000 ft. / 3,000 m.
  • Easy installation and service with pipe connections located at the bottom and serviceable components accessible from the front.
  • Extremely quiet operation; quieter than most refrigerators.
  • Built-in on-demand domestic hot water (DHW) with Vitodens 100-W, B1KA Combi boiler. Ideal for apartment units or houses with small mechanical rooms and a single DHW draw point.


Learn more about the specific Viessman models Frederick Bros carries below, and reach out to us today to discuss getting one for your home or business.

  • Viessmann Vitodens 100-W

    With its outstanding design and price/performance ratio, the Vitodens 100-W is the perfect mix of performance and value. Its compact design, zero clearance to combustibles and extremely quiet operation make the Vitodens 100-W an ideal choice even in the smallest spaces. Plus, with a limited residential lifetime warranty, you can be sure your investment will deliver long-lasting, value year after year.


    • Rated input: 21 to 125 MBH – 6.2 to 36.6 kW
    • Efficiency (AFUE): 95%
    • Fuel: Propane gas
    • Application range: For residential homes and apartment units, new buildings and retrofits
    • DHW heating: On-demand DHW available with B1KA Combi boiler (up to 3.6 GPM)
    • Warranty: Limited lifetime warranty in residential applications
    • Additional features: Compact, lightweight wall-mount design and zero clearance to combustibles make it a great choice for limited-space installations.

  • Viessmann Vitodens 200-W

    The intuitive Viessmann-made Vitotronic 200, HO1B control manages the entire heating system and ensures economical performance and maximum comfort at all times. The user-friendly, menu-driven control is capable of displaying multi-line text and graphics on a backlit display. The high-contrast, monochrome display offers excellent readability under poor lighting conditions.


    The outdoor reset function automatically adapts the boiler operating temperature to the changing outdoor temperature. This reduces fuel consumption up to 15%, giving you excellent returns year after year on a modest initial investment.


    • Rated input: 12 to 530 MBH – 11 to 155 kW
    • Efficiency (AFUE): Up to 95%
    • Fuel: Propane gas
    • Application range: For residential homes, apartment buildings and commercial applications, new buildings and retrofits
    • DHW heating convenience: Additional DHW tank(s) required, for a high level of DHW
    • Warranty: Limited lifetime warranty in residential applications
    • Additional features: Multi-boiler installation up to 4240 MBH with up to 8 boilers (models B2HA 100, 112 and 150).

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24/7 Emergency Services for New Propane System Installations
We pride ourselves on going above and beyond for our customers. That's why we're available 24/7, 365 days of the year to handle your fuel emergencies.
Reliable Experts Who Are There When You Need Them

(207) 367-9001

(207) 367-9001
Senior and Veteran Fuel Delivery Discount: Two Cents Off Per Gallon
We discount an automatic two cents off every gallon of fuel we deliver to seniors and military veterans.
Get Clean, Reliable Fuel for Less

(207) 367-9001

(207) 367-9001
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