This is a progress report to let our community know what we have been working on.
At the heart is a modular approach where the firebox, the heat exchange design, and options like adding an oven are independent of each other so that each can be developed and documented separately and then combined for each specific project. One important aspect is that it focuses on a standardized firebox that can be tested and certified for combustion efficiency.
At this point, we are focused on developing plans and instructions for a hybrid approach to masonry heater core construction which combines the use of firebrick available at a local masonry yard for the simplest shapes with cast parts for the more complex and technical shapes. The end result is a pallet with the cast parts, hardware, and other specialized materials (lintels, insulation, gasketing) for your project delivered via LTL freight to your location to streamline your procurement process. Plans and instructions are delivered digitally.
The FlexCore firebox can be applied to a range of heat exchange strategies to fit the architecture of your project.
For the modular masonry heater, is consideration being given to an installation with the “fireplace” on one side and the oven access on the side opposite? Chimney / flue coming out of the top?
Any general guidance available on footprint dimensions for the heater (leaving aside any finishes)?
Yes! This is one of the main goals of the design work.
In our custom designs previously, portions of the heat exchanger brick work were bonded with the core so making changes in the oven options and design affected the whole design of the heater. With this current approach where the heat exchangers are independent, cinched, and sealed to the combustion core/column, you will be able to switch which way the oven faces (front or back) and whether you choose a direct or indirectly heated oven. We hope to provide more documentation soon.
As far as layout goes, the article above gives you a good basis. The basic finished layout is 48" wide by 32" deep and the addition of benches generally add 16".
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