In the U.S., with rare exception, our boilers are for Businesses, Commercial, Domestic Hot Water and Non-Residential applications only,
They are built to heat Businesses, buildings, garages, workshops,
commercial and other spaces, plus domestic hot water systems,
pools and hot tubs.
Our traditional outdoor furnaces generate economical,
natural and safe heat.
They are compatible with most existing and new heat systems,
including hot water, forced air, hydronic heat, radiant floors and baseboard heat and more.
Please see: https://outdoorwoodfurnaceboiler.com/EPA_regs.htm
100 Gallons of water
112,500 BTU stored, ready to pull from at a moment's notice
16.5 cu. ft. firebox, which is 28"L x 30"W x 34"H. Heating area based on water capacity/BTU stored is 2800 sq. ft.
Wood capacity put this at a 4125 sq. ft heating capacity
Overall Dimension: 64 ½” x 46”x 87”
ASH TRAY CLEAN-OUT!
We recommend a 4" thick concrete pad to carry the weight of a boiler because this model will have 800 pounds of water and the weight of the boiler is 1700 pounds. You will need a very substantial pad so that the boiler does not sink into the ground.
You can also use solid 4" concrete blocks or even pavers. Many people use railroad ties for support. The choice is yours.
A 36" pad on front is best, to have more solid space to stand and is how I made mine (vs the 24" shown).
1.
2: 430-ton Press Brake
We are the only manufacturer that uses a press brake to form a firebox and water jacket; both from 1 piece of metal.
Most everyone else uses 6 flat slabs of steel, with no inherent strength and that requires 12 welds because welds are the weak spots.
This new firebox and water jacket is formed using a 430-ton Press Brake,
3: Not only is the firebox thicker; the water jacket bottom is THE SAME THICKNESS as the firebox because it is the most vulnerable part); 3/8" standard and the 1/2" THICK firebox option gives you a HALF INCH THICK water jacket bottom as well!
NO ONE ELSE DOES THAT - ANYWHERE!! The cost for this upgrade is $647.
You may want to consider that upgrading the thickness of the water jacket may be a better option, at just $395, where we make your water jacket 1/3 thicker, upgrading it to 1/4" thick, which is what I did on my personal boiler.
4: It is the best boiler because it has ALL Off-the-Shelf PARTS; nothing proprietary that you have to get from us.
5: It is the best boiler because it has No electronics; NO circuit boards, NO computerized parts (like the circuit board on the left and on the Wood Master and Central Boiler and many others)!
6: Do you really need a Smartphone or Laptop to monitor your outdoor boiler?
I say that you should not have one if you cannot go outside and open the rear door and look at the thermometer and glance at the water gauge to see what is going on!
It is just something else to go wrong with a lot of extra expense that seems to be never covered under warranty. They always say that a power surge took out the circuit board and you get stuck with a $300.00 bill and the technicians cost to install it.
Not so with HyproTherm. Every part on our boiler is available almost anywhere and everywhere; on eBay, at Grainger, your local plumbing supply; even in Canada!
One Inch Solid Steel Grate
7: One inch Solid Steel Grate(s) are stronger, resistant to bowing and deformation like you may get with steel grates. We purchase these from a foundry that labels them as coal grates, and they do well. Shaker grates are cast iron are available as an option, mostly for those folks burning a lot of coal, where the coal is inclined to have clinkers.
Our smallest models have one grate, the next two sizes up have two grates and our largest models typically have three grates.
8: Pull-out Ash Tray
Most manufacturers make you open up the firebox door to clean out the ashes with a shovel. You will quickly find out that you are not going to get anywhere near the firebox because it will be 800 F or more!
They want you to open the firebox door and you will need to leave it open to let the heat out and I call that wasting heat. You will need to kill the fire to be able to shovel out the ashes and then you have to start a fire again, in the dead of winter.
With our furnaces you do it the easy way. Even with a fire raging, you can pull out the ash tray, dump the ashes into a fire proof container and slide the tray back in without missing a lick. Two handles on the ash tray make it easy. Every ash tray is the same length as the firebox.
9: It is the best boiler because it has one pump installed WITH flanges; many others don't give you any pump PLUS we give you an extra set of ports for another pump to heat another building.
10: They all come pre-wired with a reliable RANCO aquastat as shown below.
- Full sized rear door for easy access!
- Totally pre-wired with Ranco Aquastat, fan switch, 4 outlets, a pump and a 75 CFM forced air induction fan.
- This blower (seen below) feeds oxygen from the bottom, up through the grates just like a blacksmith's forge.
- Water level gauge and analogue thermometer included.
- Second set of ports for another pump.
- Built in hot water coil to heat your domestic hot water (saving you $35-$65 per month plus up to $3-400 in parts costs).
ASH TRAY CLEAN-OUT!
The next model larger (FLRH-185) is ONLY $400 more and is 20% larger and hold 85 gallons more water or stores 95,243 more BTU - ready to pull from at a moment's notice!
11: A built-in copper hot water coil, that sits in the big tank of water to heat your domestic hot water; saving you $35-$65 a month in energy costs plus $3-400 in installation costs of parts that are needed with other manufacturers' boilers.
