As a test of burn times, the owner of HyProTherm Furnace took the thermostat off his 25 year-old water furnace, so that the fire would rage at  maximum burn 24 hours a day. 

Yet he still only has to load it every 12  hours, at maximum burn - never shutting off!

Normally, he goes as long as 24 hours without reloading it. 

I get a whole day with mine!

Another customer called and told me he goes 18 hours between loads (1/17/08)

I, personally, get 24 hour burn times; loading it just ONCE A DAY!

Don't believe the hype and misinformation about 43-98 hour burn times. This is only true in the summer.

Forced-Air furnaces tend to get even longer burn times.

See my eBay report

• No logs to carry in means no messy ashes and bugs in the house!
• One of the selling points of an outdoor furnace is the convenience of locating it near the
  wood fuel source so you don't have to cart wood all around.
• Safety
  • The chance of carbon monoxide build-up in your home is eliminated.
  • Eliminate allergies by getting the smoke outside!
  • The chance of a gas explosion from your furnace in your home is eliminated.
  • Indoor pollutants of harmful gases and fumes are eliminated too.
  • Eliminates the chance of chimney and flu fires from your furnace.
    
• If you live in a suburban or rural area near a source of cheap wood, you could heat your
  home for the entire season for the cost of one month's electric heat bill. 
• An outdoor furnace requires less tending.
• No inside oxygen is used to fuel the heat like other wood or gas burning units.
• Does not cause respiratory problems like burning wood indoors.
• Wood is cheaper than buying it for a fireplace. Instead of 12-18' wood split,
  you can put 30" pieces in this one and full rounds. That makes buying wood even cheaper.
• Burning wood, a total renewable resource, is less expensive than other fuels.
• The cost of electric, gas, oil, or propane can be very erratic. The low cost of wood remains constant - or FREE!.
• The furnace hooks up to any existing gas pack, heat pump or forced air system;
  even buildings with no ductwork or existing heating system ca use it. Ask me how....

Most people pay for their furnace in 2 years or less! 

Imagine getting a 50% return on your money every year!

Where else can you get that?

An outdoor wood burning furnace is the BEST  INVESTMENT!

An older water furnace 
 is shown here for color.

Get the Bugs, Dirt, Wood
and Smoke outside.

 Your lungs will love you!

Many people are getting 
lower rates because
they are getting the fire and
related hazard, out of the house!

No more bending over, straining your back to load wood! Lever action safety latch!

A PROVEN design - since 1972!

We feel we build the safest furnace (nothing electrical outside). We have the BEST PRICES and a Very Friendly Staff to help you every step of the way.

These furnaces now come with a double flood light on the front, for ease and safety of loading the wood at night.

Not only that, it's a MOTION LIGHT!

No switches. No forgetting to turn it off. If it's dark outside and you go near the furnace, it turns on!

Lights come shipped inside the firebox,
so they don't get broken in shipping.

New, nicer looking furnace - NO SILICONE

Now with nice neat looking butyl tape and grommets

The door IS HUGE!
Remember, a smaller 15" round log, 30" long, will weigh 112 lb - more than most people can ever lift! 

Trust me, the door is more than big enough for anything you can lift into the furnace AND the thick door frame will take a pounding as you throw them in!

24" x 24"  - The TOUGHEST door you'll ever find with TWO 1/4" solid steel plates separated by a 3" air shield; filled with the BEST EVER Ceramic Wool Insulation insulation.

This inner plate keeps the hot air in and deflects it off the door. With very little metal to transfer heat to the door it does an excellent job of insulating the door.

There is also fiberglass insulation BETWEEN the plates now!

Very heavy duty motor mount type hinges! OURS won't fall off!

Click on Pictures for a Larger image
1/4" thick flue; will not get damaged by throwing wood in

The chimney is low on the firebox and exits about 1 foot from the bottom, so that the smoke - or more importantly, the gas and heat - is trapped so that it doesn't quickly escape out the flue. That would be a big loss of efficiency.  

This way the air has to cool off to find its way down and out the chimney. This is also a better idea since you don't have hard-to-clean baffles getting a creosote buildup on them.

Having the chimney come down low
and stops the heat, gases and smoke from rushing right out the chimney AND creates a HUGE Secondary burn chamber to burn off all the gases from the wood - a HUGE source of energy!

When wood starts to burn it's the gas that burns first!

Another advantage is that the chimney exits through the air chamber, further heating it up - for free! Nothing does better!

These are some of the reasons that our water furnace is one of the most  efficient on the market.

This also means that you will burn less wood than with others  and therefore you will use more wood with the other - being less than 75% efficient. That's proof, not just rhetoric.

Compare Firebox thickness to another popular furnace (eBay won't allow us to say their name) at only .125" and another at .1875" thick. Our standard FLFA or THERMOWIND firebox is 1/4" to produce heat for you FASTER

We have never had a firebox failure, crack, split, rust-through or leak in 49 years of building furnaces.

We have a pull-out ash pan! Some other makes don't even have an ash pan!! 

 That makes it HARD to clean out! You have to let the fire die down or move the burning wood aside to scoop out hot ashes. OUCH!

It WILL NEVER RUST through in a lifetime! Will not  get stress cracks like Stainless Steel!

We have furnaces OVER 30 years old and more, still in use today!

The removable, replaceable grate
is made out of
THICK 3/4" inch bar stock.
 

Now THAT IS VERY thick!

We have NEVER had one
burn through!

(Most others are a thin 3/8 - 1/2")

Now available with optional
CAST IRON GRATES

One grate in the FLFA-1000 model

  Ash pan and door

 

and you can see the
air inducer blower inlet tube 
(seen in back of this picture).

Click on Picture
for a larger image

The blower in the back is a great aid in getting a fire started.

It also recovers the air temperature much quicker, and burns the wood up more completely because oxygen is being fed to the bottom of the flame - like blacksmith feeds his fire!

The thermostatically controlled, forced air induction blower determines how hot the fire burns and therefore how hot the air in the furnace gets.  

A thermostat on the back of the furnace tells the blower when to turn on and off (and has a solenoid activated door), so it doesn't run all the time and waste wood.

This is a LOT more efficient than a manual damper will ever be!

The air blows into the bottom of the fire,  through the grate - like a blacksmith's forge.

That's better than blowing in from the  front - into the side of the fire, as all others do (if they even have a fan).

You get more complete burning from a fire where the oxygen is fed through the bottom as opposed to blowing over the fire from the side, like others that have that big box on the door!
 

Actual photo of a fire inside our firebox,
only minutes after reloading with wood!

This firebox size is 31.75" wide by a 28" deep x 31.75" high; 25% LARGER than the previous (2019) model.

The air chamber surrounds the firebox, top, sides and rear.

The chimney is also surrounded by air, further heating the air up.

The ash receptacle and tray are below the firebox.

Full-sized forced air fan for your home or building
and a forced air fan for furnace induction, with solenoid activated damper
to shut off air supply when the fan turns off; saving you wood! 

 



Simple fan(s) temperature controller shown here
Furnace is BLACK ALL OVER

Both fans and thermostat included, have a one-year warranty.

NEW! A bigger, quieter, smoother
  2000+ CFM  blower (33% larger than in most homes!)
installed standard - on left above.

The fan will not turn on until the air  temperature is 125F or higher,
so that you don't have cold air blowing into the house.

You get a solenoid activated inducer blower with damper too!

All parts are available everywhere.
 
There are NO proprietary parts
or circuit boards or smart phone hook-up!

Our new removable ash pan is easily cleaned at the front!

There is an air handler/blower that feeds air into the firebox, below the grate, to feed oxygen to the fire. It is thermostatically controlled and solenoid activated for greater efficiency, to keep the air temperature in the furnace between certain parameters. 

 This is far better than an inefficient manual or natural draft opening.

Our furnace is so strong
and well-made,
that the chimney alone is strong enough
to carry even the 
3680 lb. weight of our biggest water furnace!

We move them like this every day!

Exterior is made of Heavy Duty Siding - 29 gauge structural quality, full-hard steel. 10 layers of protective coating. It has a Lifetime film integrity Warranty for walls and roof and a 30-year warranty against fade and chalk. 10 year edge rust warranty against acid rain.

 17 colors  FREE to best suit your surroundings!

Mix and match the roof, roof trim, sides and  corners and even the front can be a different / darker color (so it doesn't show  the smoke stains as much!)

There are legs on the bottom, that you can't see, with the siding surrounding the bottom to ground level.

Concrete pad is recommended but not necessary.

Use railroad ties, solid concrete blocks or ??

The chimney is made out of 1/4" thick, solid steel pipe and is surrounded by the air chamber, to extract more heat.

It tops out at about 97 " feet above ground. You can EASILY add standard 6"  stove pipe extension(s) with our FREE adapter (ask for it when ordering)

(Larger model shown here) Super easy access!! 

 Some other manufacturers have to
have the whole hull removed by 2-3 people!!

Extra Large rear access hinged door. All electrical items are in back, safely behind the door/lid! 

Easy pipe (air) and electrical hookups (simple 110V wiring). 

No special tools needed.

The easiest furnace for the self-installer to put in!

95% of  our customers install our furnaces themselves!

We help you every step of the way!

Many people can pay for their furnace
in a year and a half OR LESS
of oil or propane bills! 

Start with a small piece of wood.  :o)

Seriously, you can use these bigger, cheaper pieces or smaller ones - whatever you can easily handle. The bigger ones (rounds) require less cutting and splitting so they cost less - about $80-90 a cord in most areas.

ANY wood is cheaper than oil, gas and electricity!

One person said that they have never used their propane heater after propane prices tripled!

 

Whole rounds burn longer and cleaner
and it's SO NICE not having to split the wood!!

Shove the logs in on top of each other.

Use the big, thick poker (provided) for safety to push them in.

That big THICK 5/8" poker comes with the furnace - for FREE!

Thought there wasn't a fire?

Think again!

It can look as dark as night  in the firebox, but within a couple of minutes -  literally - this fire was roaring!

Who else offers that,
who has been around 49 years?

NOBODY!

A lot of warranties only cover parts (not even labor)!
and/or
YOU have to ship the furnace back to the factory
- at your expense.
Kind of negates the warranty, doesn't it?

 

                                 

A gentleman called me and told me his 2-year old C_____l B____r was leaking! It had rusted right through and they would repair it under warranty but he had to ship it back at HIS EXPENSE and then it would be  shipped back to him, but again, he had to bear the cost which was $1700 EACH  way! Another customer paid $700 to ship his furnace back and was only allowed $100 towards a new furnace because they only cover parts (the  actual metal cost) anyways - not labor! You see, YOU have to ship it to them and then YOU pay for shipping back to you AND you are without your furnace for 2-3-6 weeks. (It's easy to ship you a piece of metal and tell you to weld it in and even EASIER for them, to make YOU pay through the nose! NO LEAKS with a Water-Less Furnace!       NO LEAKS, NO RUST, NO CHEMICALS

 

---

The GASES are burning first

Building Quality Wood & Coal Furnaces  for 49 Years

 

We are actively looking for dealers in
ALL STATES and Canada!

 

OUR FURNACE BUYERS SAID: Feedback From Buyer / Price Buyer/Price Nice seller, good communication, very satisfied with transaction - Thanks cavengene (146) Dec-04-09 17:01   Best Outdoor Wood Outside Boiler - Furnace Stove (#190341274667) US $4,650.00 View Item Can't wait to get those low gas bills this winter! Thanks!! herkimer2000 (719) Nov-27-09 14:28   Best Outdoor Wood Outside Boiler - Furnace Stove (#120482376608) US $4,597.00 View Item Great stove. They answer any questions you have yankobandit (85) Nov-22-09 04:16   Outdoor Wood Furnace Stove - Outside Boiler -Since 1972 (#190332576451) US $5,927.00 View Item Thank you for the furnace. Great delivery. Nice people. catestwing (80) Nov-03-09 16:52   Best Outdoor Wood Furnace Stove - Outside Boiler (#190331731343) US $4,677.00 View Item       good to deal with nice people jd12rug34 (6) Apr-14-08 09:06   -- -- Private   Very Good Deals On Very Good Products. A +++ yomax4 (298) Mar-27-08 19:45   -- -- Private LOOKS NICE, HAVE YET TO HOOK UP, GOOD SHIPPING A+ blarimer (71) Mar-11-08 13:32 Reply by aware (Mar-15-08 19:13): We're glad you likeOutdoor Wood Burning Furnace! - Item 190192164959   -- -- Private AAAAAAAAAAAAAAAAAAAA++++++++++++++++++++++++++ cctv4locksmiths ( 198) Mar-11-08 09:56   -- (#200192058371) --   item as described ,very helpful ,A+++ bigdogsmotors ( 28) Mar-09-08 17:37 Reply by aware (Mar-09-08 18:06): We're glad you like the Best Outdoor Wood Burning Furnace   -- -- Private great to work with jmsg12 ( 89) Jan-18-08 10:32   -- (#200188319934) --   wounderfull working with him jmsg12 ( 89) Jan-18-08 10:32 Excellent transaction, great to work with, Thank You A++++++++++++++ Buyer  wack486( 164)  Mar-19-07 08:01 Private Reply by aware: We're glad you like our Outdoor Wood Burning Furnace! Item: 200081083241  Mar-27-07 12:02 Great transaction. Fast delivery. Product as advertised. Thanks Buyer  matthewdanielle( 101)  Feb-23-07 10:50 Private Reply by aware: We're glad you like our Outdoor Wood Burning Furnace! Item 320073503889  Feb-23-07 20:20 plus... As nice, courteous, and helpful a sellers as you will EVER find! Great furnace too! would recommend excellent service thanks guys a++++++ Wood Boiler seems like a great unit. Yet to hook it up. Smooth Process! honest and very helpful seller

 

 

Why buy a HyProTherm Outdoor Furnace?	HyProTherm	The others
We make it simple without expensive electronics to break down		NO
We make it user serviceable. Anyone can maintain our furnace!		NO
We make our firebox to last! Ours is thicker! .250 standard vs .125 inch. We have a 3/8" and 1/2" option too.		NO
We give accurate BTU ratings using an established scientific formula. They say what sounds good.		NO
We have a 2-light motion detector light on the front (not installed, for your protection)		NO
We have a 75 CFM induction fan not a dismal damper to fuel the fire with oxygen. More complete burning!		Some
Our fan is in the back, behind a door, where you can't get shocked AND it blows the air through the grate into the bottom of the fire JUST LIKE A BLACKSMITH'S FORGE - NOT into the side/front of the fire! Fires burn from the bottom up, right?		Only one other
We have been building fine energy efficient furnaces for 49 years!		NO
Our grates use THICK 3/4" Bar Stock!               While Many others don't even have any grates.		NO

 

 

 

---

 

This Model: ThermoWind 1000
  is Rated to Heat up to 4375 sq. ft.
(In a PA type of cold)

ONLY $7567


 

 

BURN TIMES As a test of burn times, the owner of HyProTherm Furnace took the thermostat off his 25 year-old furnace, so that the fire would rage at  maximum burn 24 hours a day.  Yet at MAX burn, he still only has to load it every 12 hours. Normally, he goes as long as 24 hours without reloading it. A customer called and told me he goes 18 hours between loads (1/17/08) Others have reported 24 hour burn times! I GET 24 hours out of mine! We will always size the furnace for you to achieve once a  day loading (24 hour burn), if you want it! There is no negative to getting a bigger furnace, like this one because it is  not like purchasing an air conditioner where if you get one too big, it becomes  inefficient. It is simply like getting a bigger fuel tank so that it will hold  more fuel and you will need to fill it less often. Don't believe the hype and misinformation about 42-98 hour burn times. This is only true in the summer. See my eBay report

 

---

Older model with much smaller door BUT our most popular color
Evergreen or Forest Green with Black trim

 

 

 

 

                 

Please allow 6 weeks for you furnace because every furnaces is custom built for you and fitted with YOUR choice of 17 available colors.

 

We will build YOUR furnace in any of 17 exciting colors
or any combination thereof!

 

 

Just a few EXAMPLES of Color Combinations:

Black Front  Taupe Sides	Ivory All Over
Water-less  Brown All Over	Black front White Corners
Brick Red & Black	Ivory w/ Green
Evergreen w/black	Boiler Side
Ivory with black	Bright while & red
ThermoWind furnace	Light gray with black trim
Ivory w/ Burgundy	Ivory w/ Blue
Older model but the same 1/4" chimney, welded into the 3/8" firebox,  carrying the whole 2175 lb weight!
CLICK ON some PICTURES for a LARGER IMAGE

 

We will build YOUR furnace in any of 17 exciting colors
or any combination thereof!

Older design (with smaller door) but the same colors available!

LOTS of Different colors and ALL come with motion lights!
Water furnaces shown here to show assortment of colors.
Ocean Blue with White; White and Red; Ivory with Brown;
Green with Black; White with Black; Ivory with Green

Just a few EXAMPLES of Color Combinations

Click on pictures for a bigger photo (even if they appear  blank)!

Another chart is at:
https://hyprothermcoalfurnace.com/wp-content/images-2018/Color-Chart-2019.pdf

Not all colors are available at all times.

We can also build your furnace so that
you can apply regular siding, brick,
faux (cultured) stone or almost anything else.

We can also build them without siding for a savings of $300,
for those who want to put them in an outbuilding .
Write to me and I'll list one for you.

Questions about stainless steel answered

Do you build with stainless steel?

Hi! 

No, we don't build stainless for several really good reasons.

Our furnaces last longer than stainless with MANY of our water furnaces still in use after 30 years plus!!

1. Mild steel transfers heat better than stainless does.

2. Stainless is a great sales feature, but little else, since most companies use cheap stainless, like a car's exhaust system.

There are many grades of stainless out there.

3. Since stainless is so expensive, the fireboxes are made really thin. Some are no thicker than the metal in a 55 gallon barrel or the thickness of a trailer fender!! That's why you see so many split and broken apart.

Our optional firebox on water-less furnaces, is 1/4" thick - normally found on traditional boilers, giving faster heat transfer!

Our optional firebox on boilers, is almost .500 inches thick (HALF INCH) as opposed to as thin as .125 in many furnaces.
 
We replaced several H_rdy Furnaces and there are many leaking Ce___al Boilers and H_rdys on eBay for sale, that are leaking.
 
  4. Stainless is more prone to stress cracks, so why use it?
 
  5. Unless the stainless is retreated after welding, you've lost all of it's great properties through the heating of the metal. And   it's being welded to mild steel anyway, so what's the use?
 
  Like I said, it's a great sales feature but our super thick mild steel furnace heats better, doesn't crack and split - and last longer!
   
  If stainless was better, we'd surely be using it after 49 years of experience.

Best regards,

Ben

.
SAFETY!

The potential for electrical shock is something we have tried to totally eliminate. That is why unlike our competitor's stoves, our stoves do not have electrical control boxes, draft fans, etc., on the outside. We believe these impose too much risk should a problem ever arise. We also believe that to have anything too complicated on a wood furnace is unnecessary. We have made our furnaces to be simple, and reliable and we have proven that with 49years of use.

We do not have complicated self-fill, bladders or water level indicators on our furnaces.  You don't need them with Forced-Air!

These stoves were developed by us, for our own use. We started making them for others slowly and now our stoves are well known locally for their simplicity, and their maintenance-free operation. HyProTherm has sold several thousand in their county alone! We are sure that if you purchase one of our stoves you will be completely satisfied with our stove throughout its long service life which you will enjoy.

Forced-Air Wood Furnaces are indeed an excellent, almost zero-maintenance heating choice. We are positive that a few years down the road when others are making costly repairs to the overly complex system they purchased from our competitors, you will be quite comfortable and enjoying your new cost effective HyProTherm's Forced-Air  Wood Furnace.