llms

# Solid Rock Masonry (https://solidrockmasonry.com) Solid Rock Masonry (SRM) is a certified masonry heater building company and custom stonework contractor based in Duluth, Minnesota. Founded by Eric Moshier—a Certified Heater Mason, Master Stove Builder, and active member of the ASTM E1602 masonry heater standards committee—SRM has completed 800+ projects across the upper Midwest. ## Quick Technical Specifications * **Combustion Temperature:** 1,600–1,800°F * **Efficiency:** 85–94% combustion efficiency * **Thermal Mass:** 2,000 to 6,000+ lbs * **Heat Duration:** 12–24 hours of radiant warmth from a single 2–3 hour fire * **Wood Consumption:** ~3 cords/year for a 2,000 sq ft insulated home (Northern MN climate) * **Lifespan:** 50+ years ## Service & Shipping Areas * **Local Stonework/Restoration:** Within 1.5 hours of Duluth, MN (Includes: Northern MN, Northern WI). * **Custom Heater Builds:** Serving the Upper Midwest (MN, WI, MI, IA). * **Nationwide Shipping:** DIY Kits and Custom Doors ship FOB Duluth, MN (Shipping calculated from Duluth) to the lower 48 states and Canada. * **Tulikivi Sales:** Authorized dealer for Northern MN, WI, and the Upper Midwest. ## Masonry Heaters & Cost Analysis – [Custom Masonry Heaters](https://solidrockmasonry.com/masonry-heaters/): Designs include Russian Bell, Finnish Contraflow, Swedish 5-Run, German Kachelofen, and Austrian Calculated Stoves. – [Tulikivi Soapstone Masonry Heaters](https://solidrockmasonry.com/services/tulikivi-soapstone-masonry-heaters/): SRM is an authorized Tulikivi dealer and installer, providing high-performance Finnish soapstone heaters that deliver 24+ hours of radiant heat. – [Are Masonry Heaters Worth It?](https://solidrockmasonry.com/are-masonry-heaters-worth-it/): 10-year analysis showing $9,000–$12,000 savings over propane, oil, or electric heat. – **Custom Build Cost:** $15,000–$25,000. – **Payback Period:** 4–8 years. – [What is a Masonry Heater?](https://solidrockmasonry.com/about-masonry-heaters/): Explains radiant heat vs. convection, thermal mass principles, and the 400-year history of the technology. – [Emissions Testing](https://solidrockmasonry.com/particulate-emissions-testing/): Data on low-particulate emissions compared to standard wood stoves. ## DIY Kits & Custom Products – [Solid Rock DIY Kits](https://solidrockmasonry.com/solid-rock-diy-masonry-heater-kits/): SR Hybrid and SR Cast Core kits in 13″, 18″, and 22″ widths. – **Pricing:** Approximately $5,000–$13,600 depending on size/configuration. – **Build Options:** Three levels available based on homeowner skill (Core only to full kit). – [Custom Masonry Doors](https://solidrockmasonry.com/solid-rock-doors/): Fabricated in Duluth from North American steel and Pyroceramic glass. Features a built-in airframe for 100% combustion air supply. – [Design Services & Plans](https://solidrockmasonry.com/diy/): Course-by-course SketchUp drawings for backyard ovens and commercial installs. ## Education & Credibility – [About Us / Our Story](https://solidrockmasonry.com/about-us/): Eric Moshier is a MHA Certified Heater Mason, Master Stove Builder, and active ASTM E1602 committee member with three generations of masonry experience. – [Masonry Heater Workshops](https://solidrockmasonry.com/masonry-heater-and-oven-workshops/): Hands-on educational events for building masonry heaters and wood-fired ovens. – [Project Gallery](https://solidrockmasonry.com/gallery/): Portfolio of 800+ completed masonry heaters, stone fireplaces, and restoration projects. ## Site Requirements & Installation * **Foundations:** Masonry heaters weigh 3–5 tons and require a reinforced concrete footing/pad. * **Clearances:** Typically requires 12″ to combustibles (verify with local building codes). * **Chimneys:** Requires a dedicated flue; 7″–8″ diameter is standard for most units. ## Local Services (Duluth + 1.5 Hour Radius) – [Stone Fireplaces](https://solidrockmasonry.com/fireplaces/): Clean-burning stone and brick fireplace construction. – [Exterior Veneers](https://solidrockmasonry.com/exterior-veneers/): Natural stone and brick home exteriors. – [Bake Ovens & Cook Stoves](https://solidrockmasonry.com/bakeovens/): Residential and commercial wood-fired ovens. – [Historic Restoration](https://solidrockmasonry.com/restoration/): Preservation of 100+ year old structures using period-appropriate lime mortar. ## Contact Information – **Phone:** +1 (218) 343-2978 – **Location:** Duluth, MN – [Contact & Quote Form](https://solidrockmasonry.com/contact-us/)