Using an Outdoor Wood Burning Furnace
to heat a home with several furnaces
OR different types of heating systems
 

Using an Outdoor Wood Burning Furnace
to heat a home with several different forced-air furnaces
OR using different types of heating systems together

You can use an outdoor wood burning furnace in a home, the has several different furnaces on different levels or different areas. For example, you might have a furnace in the attic to heat your top floor; another in the basement the heat the bottom floor and even a different one to heat in addition.

You can simply put heat exchanger in the plenum of each furnace. You would run the piping for the heat exchangers in series.

In this scenario, you would likely run the outdoor furnace at 180F

The first heat exchanger would yet 180F water, while the second one would like to be approximately 20 less, or 160F, while a third one would be approximately 140F; plenty hot enough to heat up on.

In fact, all of our heat exchangers are rated at 140F or better.

Doing it this way saves a lot of piping and running extra pumps, which is unnecessary. You would normally run the first pipe from the outdoor furnace to the area needing the most heat (in other words, the largest square footage that you are heating). The last one in the run is likely going to be for the smallest area or a place like a basement, where you don't need much heat to begin with because it is already 55 or better, being belowground.

You can do the same thing when you are using different types of heating systems. a lot of people utilize a forced air furnace in conjunction with a radiant system, for various reasons. Sometimes one or the other has been added at a later point in time.

You would normally run the first line to the heat exchanger and a plenum because that is where you will need the most heat. Normally a radiant type of system in a floor will be 140 or less, so it is quite fine for that be at the end of the line.  a water to water heat exchanger (sometimes also called a plate exchanger) is used between the outdoor furnace and your radiant system is normally uses some type of boiler. You will always need a tempering valve control the water temperature going in the floor, so that the flooring material isn't damaged.

the same goes true when using at heat exchanger in a Plenum and a SideArm heat exchanger on a hot water heater. We normally don't recommend doing that because our built-in heat exchanger for your domestic hot water works so much better.

This scenario the plumbing would first go to your heat exchanger in a Plenum and then to your hot water heater (SideArm) because that only needs 150F at the most.








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