Elegant & Powerful RADIANT Heat
Soapstone Masonry Heaters
Experience the warmth and efficiency of handcrafted soapstone masonry heaters. Built to retain heat and reduce fuel use, they bring lasting comfort and natural elegance to any space.
THE WORLD’S BEST THERMAL MASS RADIANT HEAT
World-Class Soapstone Masonry Heaters
Greenstone was founded in 2008 in Denver, Colorado, to bring the radiant wonders of soapstone masonry heaters to North America. Our heaters have been featured in some of America’s most sustainably built, off-the-grid homes. When the US Fish and Wildlife Service needed a sustainable, clean, wood-burning radiant heater for the Wildlife Refuge Visitor Center, they turned to Greenstone and our Valencia 7 masonry heater.
Sustainable Heat, Artfully Delivered
Four Base Models Plus Custom & Veneer Options
Valencia
Our best selling masonry heater with the largest bake oven option. Versatile for a wide variety of home sizes and designs.
Dorchester
Features a bay door for maximum fire viewing. Ideal for larger spaces.
Veneer Stone & Brick
Not into the soapstone look? All designs are available with a ledgestone, fieldstone, brick veneer or stucco exterior.
Why Greenstone?
Unparalleled Soapstone Performance
50%
Longer Heat Output
Unlimited
Aesthetics
∞
Unique Exteriors
Integrated Heating Cooking & Safety
1,200º F Firebox
500º F Ovens
180º F Surface
American Owned & Operated
100%
Coverage Installation Across The USA
Why Masonry Heaters?
01
Most Efficient
+
Burn Less wood
70%
Less Firewood
02
Cleanest Burning
+
EPA Exempt
70%
Fewer Emissions
03
Self Reliance
+
Wood-Fired Ovens
24
Hour Heating & Cooking
04
Invest in Soapstone Comfort
+
Thermal Mass Radiant Heat
~5-7
Year Investment Payback
Experience the Warmth of Soapstone Masonry Heaters
Enjoy unmatched comfort, efficiency, and beauty with handcrafted soapstone heaters designed to last a lifetime.
Greenstone Soapstone Heaters
Greenstone Soapstone Masonry Heaters use a labyrinth of core heat exchange chambers to capture the energy of an efficient, clean-burning fire in its stone mass, and radiate that heat evenly over many hours, resulting in the world’s most comfortable homes. These radiant fireplaces are the only American made soapstone heaters, featuring soapstone from Brazil and India, time test sources of the world’s heat retaining material. All of our models can be skinned in a wide range of fieldstone, flagstone and brick veneers, allowing you a one of a kind heater design. On average, our soapstone masonry heaters reduce the amount of wood burned to heat a home by 60 to 80 percent. You really can heat your home with one or two small fires per day. Our technical skill and hands-on approach has led to scores a happy customers across North America.
We feature four series of soapstone masonry heater designs, each of which can be built from five to eight courses in height. Each series can be customized to incorporate various bench designs, mantels, bake ovens, cook tops and a variety of soapstone color combinations, surface finishes and edge details. A tunnel version is also available, which has fire viewing doors on both the front and back sides of the firebox. Our soapstone masonry heaters have been featured in some of America’s most sustainably built, off-the-grid homes. When the US Fish and Wildlife Service needed a sustainable, clean, wood burning radiant heater for the Wildlife Refuge Visitor Center, they turned to Greenstone and our Valencia 7 masonry heater.
If you are looking for a masonry heater, soapstone fireplace, soapstone stove, or masonry fireplace, Greenstone has the premier green, renewable, carbon neutral heating source available. A masonry heater is also known as a soapstone fireplace, soapstone stove, Russian fireplace, heat-retaining fireplace, ceramic stove, tile stove, contra-flow stove, Finnish stove, Swedish stove or kachelofen. These are not all the same device but do share the central design feature of thermal mass heat capturing, radiant warmth. For too many years, Americans have allowed the majority of the heat produced by their stoves and fireplaces to escape up the chimney. Today, it is our mission to stop the waste and clean the air. We are proud to have introduced hundreds of families across the United States to a better wood heat. Call or email us today to discuss the ideal masonry heating system for your home.
practical elegance
Recent Installs Gallery
When you have Questions
Frequently Asked Questions
A soapstone masonry heater is the best wood heating device the world has ever seen. It is comprised of a scientifically designed firebox, surrounded by heat exchange chambers that ensure the efficient warming of the adjacent thermal mass. Wood fires are burned very fast and the energy is retained in the thermal mass of stone. The heater releases comfortable radiant warmth for 12 to 24 hours, heating your home and contents, not just the air inside.
Capture :: Store :: Release
Masonry heaters are designed with a relatively small firebox, designed to maximize Combustion Efficiency or how quickly and completely the wood and gases are burned. Our heaters contain scientifically designed heat exchange chambers and a huge thermal mass of soapstone, designed to maximize Heat Transfer Efficiency or how well the heater transfers heat into house versus up the chimney. Simply put, our heaters utilize a renewable fuel source to heat your home in the cleanest, safest, most comfortable way known to man.
Health :: Safety :: Comfort
We believe that nothing is more important than the health of our friends and families. Forced-air furnaces, stoves and fireplaces dry out the air, increase airborne dust and allergens, dehydrating the body and increasing allergies. The slow release radiant comfort of a masonry heater is safe for your children to touch and eliminates the cycle of hot and cold common in other wood heat. Discover the benefits of health and vitality only available in a soapstone masonry heater.
There are three obvious benefits from this wood use reduction.
Lifestyle
First is the lifestyle improvement. Imagine reducing the amount of wood you will cut, split and stack by 70-80%. No more getting up in the middle of the night to load your firebox… only one or two fires per day to heat your home.
Cost
On average we currently see split seasoned cord wood selling for roughly $300-400 per cord around the US. Prices vary wildly by region and species but on average most customers will save around $1,600 per year on cord wood alone.
Environment
Not only do our soapstone masonry heaters operate at better than twice the real world efficiency of even the best traditional wood stoves, but when combined with a 70% plus reduction in wood usage, its a win for you and the environment.
construction material.
All of our masonry heaters feature soapstone shell and core assemblies with a replaceable soapstone inner firebox liner.
Generally speaking, the most important variables in a masonry heater are maximizing thermal mass and radiant surface area and utilizing materials that combine optimum rates of conductivity and thermal capture capacity.
Soapstone is generally recognized to be the best material in the world for both of these.
Installation of our masonry heaters is generally a three to four day process. See our Video Page to understand the major steps in a standard heater installation.
If you have a free-standing fireplace that is not against an exterior wall, we can often convert your fireplace structure into a thermal mass radiant heating system. The process of converting a traditional fireplace into a masonry heater can take many forms, depending on the size, type and design of your existing structure. Only fireplaces that are completely constructed of stone, masonry and other non-combustible materials, are able to be converted. If your fireplace is an insert, surrounded by a combustible wood frame structure conversion is not possible and we would recommend removal and replacement.
For free-standing masonry structures, if the footprint of your structure is at least 30” x 48” and the exterior stone or brick is structurally separate from the interior core of the fireplace, we are often able to build a masonry heater from the inside out, without the mess and expense of complete demolition. You will also save on the materials and installation of the shell of your masonry heater system.
There are many additional variables that impact our ability to convert any given traditional fireplace. Please call, email or fill out our online quote form to start the conversation surrounding your project.
Design Your Dream Heater
Whether soapstone or brick, stone & stucco veneers, find a style that suits your home.