Frequently Asked Questions




Outdoor boiler furnaces manufacturer and factory direct sales.



Daily Operation

Installation Tips

Corrosion Prevention

How it works

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Are concrete pads required?

No, concrete pads are not required.

A firm level ground with a solid concrete block under each leg is all that is needed.

Use solid concrete blocks
Make sure ground is firm and level

Will the stove corrode?

The stove is made out of mild steel which, if left untreated, will corrode. We use a sodium nitrite based solution for corrosion protection. You can purchase it directly from the manufacturer:   Corrosion Control 800    For your convenience, we no longer require you to submit a water sample for testing every year. Simply send us a copy of your dated purchase receipt every year, by email or text, or even old fashioned mail. We will then place that proof in your file in case warranty issues ever arise.  On average you will need to add one quart per year, which will be about $30.00. We also keep it in stock at our shop in Hersey, Michigan, if you prefer to pick it up in person.

Read more about Corrosion prevention

What materials are used to make the stove?

We proudly re-purpose a 500 gallon propane tank into a firebox. By doing this, we save you about $1000 in new materials and labor. Propane tanks are 3/8″ thick, one of the thickest fireboxes available. The tanks are rated for over 215 PSI, which is far more than needed.  The strongest structural design is round and the weakest is square or rectangular. This pertains to boilers as well. For longevity and strength, our propane tank uses this round boiler design. Round designs have fewer welds, meaning fewer potential failure points. Square or rectangular designs with many welds and faceted corners are problematic. Our water jacket is a round design as well and is 3/16″ thick. The jacket is insulated with spray foam for greater efficiency; and it completely surrounds the firebox. The larger outdoor stove has a large steel 24” x 24” door and is insulated with 2200 degree ceramic fiber insulation. The chimney is 8″ schedule 40 steel, 5/16” thick. Welds are 100% penetration. These are some of the heaviest built outdoor furnaces available – anywhere!

What are the daily operations?

Following simple daily operations will increase the performance of your stove. Everyday, before you load your outdoor stove, you will want to pull the ash and coal pile to the front of your firebox. Make it into a heaping pile, then load your organic fuel on and behind the coal pile. The fire will burn through the coal pile and into the fresh organic fuel, burning coal to ash much better.

Another benefit of raking ashes forward each day is that it will make it easier when you need to empty the ashes, ever 4-6 weeks. The ashes will already be in the front, and more of the firebox is available for heat transfer to the water jacket. This will make your outdoor stove work faster and burn less fuel! If you allow your outside furnace firebox to fill half way up with ashes, you will minimize the heat transfer area and will have a tough time finding room for fuel.                    Daily Operation


How many square feet will the stove heat and how often do I have to fill it?

The 5,000 Square Foot Model will heat the average home, pole barn (up to 30′ x 40′) and hot water heater. Using seasoned oak, this model should give you a burn time of 15-18 hours in the middle of winter. Spring and fall seasons, the fuel will last much longer. The quality of insulation, windows, type of fuel used, etc. could affect the burning time. We recommend that you experiment with the amount of wood that you fill the stove with so that it needs to be filled once every 12 hours. It’s more convenient to just pick the same time every day for adding fuel. If you pick 8 AM, it’s easy to remember to do it at 8 PM, 12 hours later.

How does the stove heat my home?

The furnace is a burning stove that sits in your yard, usually 50′ – 100′ away from your house. It burns organic fuels and heats the water in the water jacket that surrounds the firebox. The water is pumped through an insulated line that is buried in the ground and attaches to a furnace coil (like a radiator) that is mounted in the duct work of your home.
When your thermostat calls for heat, only the furnace blower turns on, forcing air through the furnace coil and warming your house with the heat created in the stove.

Can I heat my swimming pool with your stove?

We cannot offer expert advice on this, but it certainly can be done. It just requires an additional heat exchanger designed for heating pools and spas. Here is a link with good information:   Pool Heating

What issues have you had with your stoves?

The biggest point of failure is the electrical solenoid. We strongly recommend keeping a spare solenoid on hand in case of failure. This is an inexpensive part which is simple to replace. However, it can prevent the stove from operating correctly if it fails. Routine proper maintenance can protect it.     

How do you move an 1,800 pound stove?

The EZ way!

Our custom-built moving machine can position your stove almost anywhere that you want, and do so without tearing up your lawn.

Note: for those of you who noticed that one of the stove’s legs wasn’t resting on the cement block, this was not this customer’s final installation location. He will relocate it to its permanent spot when he is ready to hook up the plumbing and electrical, with the solid concrete blocks on firm, level ground or on a concrete slab.


Owner’s Manual

How to prepare your fuel

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