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Shelter

Masonry Heater Building

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Course Overview

Masonry heaters originated in Northern Europe where winters were cold and fuel wasn’t always plentiful. The natural response? Create a wood-fired presence that was at once incredibly efficient and highly attractive, capable of generating abundant heat and ideal for cooking/baking. Masonry heaters are built with fire bricks and utilize their high mass to radiate heat for 12-24 hours, a feature which means they only need to be fired once or twice per day. Students in this course will build a classic Finnish masonry heater (approximately 36" wide x 31" deep and 72" high). Bricks will be laid with clay, rather than mortar, as the heater will be disassembled at the end of class. Students will experience and discuss heater design, sizing options, brick selection, oven integration, door and hardware installation, code considerations, and tool use. An exterior finish of clay brick will be utilized. Stucco and clay plaster options will be discussed, as will larger heaters capable of heating spaces up to 2500 sq. ft., and masonry cook stoves. In addition to designing and building, students will learn to fire the heaters to maximize efficiency and will experiment with the student-built masonry oven located on the North House Folk School campus. The materials fee includes a complete resource packet (allowing students to return home prepared to start their own project) and the resources utilized during class for the building process.

Required Tools

  • Clothing that can get dirty
  • Eye protection
  • Ear plugs
  • 2”x 4” and/or 2”x 8” margin trowel (available at most hardware stores)

Optional Tools

  • Rubber mallet
  • Rubber “dishwashing” gloves, elbow length

Dates

Fri, Jan 14th, 2022  –  Sun, Jan 16th, 2022

Course Details

Hours: 9am-5pm each day
Tuition: $315.00
Materials fee: $75.00

Meet the Instructor

North House Folk School photo of instructor, Eric Moshier
Eric Moshier
Duluth, MN

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Masonry Heater Building