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lopezquarries@frontier.com
(425) 353-8963   
Fax (425) 742-3361
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HEATING SOLUTIONS

MASONRY HEATER COMPARISON CHART

 

FRISCH-ROSIN FIREPLACE/HEATER
Designed for people who want a larger fire viewing (door 27" x 36"), longer burn time (4 to 6 hours every 24 hours) and be able to use standard cordwood for fuel (5 to 6" in diameter).  The Frisch-Rosin can have an oven, front centered preferred, rear oven possible.  The design is based on the Swedish Kakelugn style.   It has a top exit and can have a heated bench.  Can be faced with any masonry material.

FINNISH CONTRAFLOW HEAT KIT
So named because flue gasses on the inner channels flow downward and warm air flows on the outer side rising(thus contraflow).  Sixty five percent of the heat produced is radiant. The flue exits on a contraflow at floor level, where a heated bench is possible and the chimney does exit on either side or the rear and can be removed from the heater up to eight feet away via a heated bench.  Ovens are possible, centered front or rear.  The firebox door is centered on the unit and a see thru style is possible.  Facing material:  brick, stone, stucco, granite or marble.

THE SWEDISH HEATER
Referred to as the Kakelugn.  It is a modular core system, rectangular or round.  The rectangular unit is 30" x 40" below mantel shelf and 25" x 36" above the mantel shelf.  Round models are 32" in diameter below mantel shelf and 27" in diameter above the mantel shelf.  The door is center front.   No oven is possible and no heated bench.  Top exit or rear top exit are normal.  Only minor modifications can be made.  Has a heat output of 800 sq. ft. to 1200 sq. ft.  Typically comes with tile or stucco facing, but can be faced with brick or stone.

TULIKIVI SOAPSTONE FINNISH HEATERS
These are of the Finnish Contraflow type with over thirty models to choose from, including but not limited to heater models, oven models, corner models, a see thru model, cook top models and combination heater and bakeoven models.  The core and the facing material are made completely of soapstone.  The chimney exit is typically at the base, however some models have a top vent.  Sizes vary - can heat 350 sq.ft. to 2000 sq. ft. or more.

BIOFIRE
An Austrian Kachelofen Heater.  Designed by Austrian craftsmen by computer to heat exactly the area requiring heat.  Designs vary from small to large.  The Biofire heater will heat 350 sq. ft. to 2000 sq. ft. or more.  Fuel load door can be located anywhere on the four sides, center or off centered.  Two metal door sizes and one glass door size are available.  Bakeovens and warming ovens are available.   Custom heated benches are possible.  The flue normally exits near the top, horizontally out the side of the heater into a metal or masonry chimney or vertically off the top into a metal only chimney.  Custom designs are the normal here.  Biofire is a high-tech specialty company, state of the art company which uses only quality materials and comes complete with a factory performance warranty.  Typically faced with Kachel tiles or stucco, brick or stone are possible.

RUSSIAN HEATER or STOVE:
For comparison, a standard brick sight built heater is referred to as a Russian Heater or Stove.  Typically they have three to five flue passages vertical or horizontal.  Usually vertical because they are structurally stronger. Horizontal channels are recommended where gas is the fuel of choice.  The fire viewing door can be either side or either end.  The chimney exits at the top.  A see thru firebox is possible, ovens are possible on any of the four sides.  The footprint is unlimited, rectangular or square, three sided or round and can be built one or two stories high.  Facing material can be:  brick, stone, stucco, granite or marble.

All masonry heaters made of brick are Grundofens
All masonry heaters faced with Kachel Tiles are Kachel Grundofens
All stoves of brick or with tile with a convection loop between a metal firebox and the brick or tile are called Heizeinsatz.
All masonry heaters require a masonry foundation except the smallest Biofire and the smallest Tulikivi.
All masonry heaters can be vented into a metal or masonry chimney.