The Comfort of Masonry Heat Storage Fireplaces
by Mark Twain
The slowness of one section of the world about adopting the valuable ideas of another section of it is a curious thing and unaccountable.  This form of stupidity is confined to no community, to no nation; it is universal. The fact is the human race is not only slow about borrowing valuable ideas-- it sometimes persists in not borrowing them at all.
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Tulikivi
The Comfort of Masonry Heat Storage Fireplaces
Tulikivi Gallery
Masonry Heaters from Europe
The ultimate for comfort, warmth, beauty, efficiency, and even cooking. Masonry heat storage fireplaces work by using a hot fire to heat a considerable mass. This masonry mass radiates heat gently for 12-24 hours long after the fire is out. The tradition is centuries old and is the cleanest and most efficient way to turn wood into usable energy for heating and baking. N Some models are dual fuel: electric and wood. Electricity (during off-peak demand) can be used to heat the thermal mass. We specialize designing and building Tulikivi from Finland. We install Tulikivi in Minnesota, Western Wisconsin, Iowa, and North and South Dakota.
This kitchen command center is a cooker and bakeoven that cooks, bakes and warms your food. The cooktop is made from cast iron and has an enamel border. The cookstove can be connected to a single flue, but two flues are an ideal solution. This allows you to use the bakeoven and cooktop at the same time.
The Gemini is an excellent example of Finnish design. It features large glass doors on both sides of the fire chamber, creating the feel and atmosphere of a starlit campfire right inside your living room. You can admire the blazing fire from several different angles. The Gemini is also an excellent space divider.
Our freestanding fireplace is an ideal room divider; see-through doors allow you to see the fire from both sides. Standard features include a mantle, roughface, and serpentinite detailing and a wraparound bench. Optional features include a bake oven.
This adaptable fireplace includes a generously sized bakeoven. Also available with smooth face instead of roughface vertical stone.
Hetta is built on contrasts. Featuring clear lines and a large glass panel, the modern, curved door has been shaped to suit urban tastes. On the other hand, the natural rough-faced surface is reminiscent of a campfire in the middle of the wilderness. These elements combined break boundaries by providing an atmosphere that conveys the magic of fire and gentle warmth into the room.
Just over five feet tall, this practical design has a mid-range heating capacity (up to 1,250 square feet). The basic model can be dressed up with a rough stone facing and mantels.
How It Works
The Contra-flow Principle

1. Wood burns quickly in the firebox with high flue gas temperatures, the burning gases pass up through the throat of the fireplace.

2. The flue gases are then guided out and down into the side channels, where the heat is retained by the exterior and interior stones before passing into the chimney.
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LLU1250
KTU1410
KTLU2037
Hetta
Gemini
TU2200
TLU2450
TTU2700/2
TTU2700
The Harmaja (har MI ah) is a real breakthrough in heating technology,combining convection with radiant heat. It provides the quick-release heat of a wood stove, with the warmth and long-lasting radiant heat storage only a masonry heater can provide. The Harmaja is perfect for areas homeowners would like to warm up quickly, while also enjoying comfortable heat for up to 16 hours after the initial fire goes out.
Harmaja
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