Best Outdoor Wood Furnace

20-YEAR On-Site Warranty!


Nature's Oomfort and Shaver Furnace



Check out our new customer friendly Nature's Comfort website by clicking on the link below. 
You will always get the latest information here:

We are here to help you any way that we can; even if you just need advice...

Randy represents Nature's Comfort

Call Randy!

OPEN 6 DAYS to better serve you!
We are usually available from
8 AM - 8 PM CT Mon to Sat

Wed, Friday and Saturday;
8 AM - 5 PM CT


To speak to Randy, please CALL
608-519-4664 or write to:



 Be sure to buy your outdoor wood furnace now so you are grandfathered in before the new EPA laws go into effect in the year 2015. Furnaces will have to be EPA approved starting in 2015, which will result in higher prices and stricter cleaning regulations. Ask Randy for more information if you have any questions about the law.  You can also click here for more information.



Shaver Links

Benefits of an outdoor wood furnace boiler 5 Sizes of outdoor furnaces Realistic FAQ of Outdoor Wood Furnaces Pictures of Outdoor Wood Furnaces
Wood Furnace Articles Installation of the Shaver Outdoor Wood Furnace Purchase a Shaver Outdoor Wood Furnace How we ship the wood furnaces and pricing

Contact Shaver Outdoor Wood Furnace     SHAVER FURNACE PRICES

Nature's Comfort Boilers

NCB-80 | NCB-120 | NCB-175 | NCB-250 | NCB-275G | NCB-325G

Solar Water Heaters:  SM-V30  SM-H60



We now carry the TWO BEST WOOD STOVES out there!


Shaver Furnace

20-Year Warranty!

Built for 41 years in Salem Arkansas
Where labor is
less expensive

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Nature's Comfort

20-Year Warranty!

Built by the Amish; skilled craftsmen!

Built in Shipshewana, IN; close to the fabrication plants in the heart of Amish country
with their strong work ethic and pride in the quality of their work.

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Shaver Furnace
has wood & coal boilers,
forced-air furnaces, front-loaders and top-loaders.

STARTING at $4397 for 3500 sq. ft.

NOW comes with an adjustable front door latch and an improved rear door latch,
plus a fitting for a dry-well (for a probe) or analog thermometer
Now has a neater, better seal around the chimney
PLUS the automatic damper on our fan
and a chimney cap!


Nature's Comfort has wood and coal boilers,
pellet stoves and EPA Certified furnaces.

STARTING at $3490 for 2,000 sq. ft.

ALL Furnaces have E-Z FLOAT! for easy water level monitoring
and very large doors!. Most have an ash pan.
All furnaces are wired and ready to install!
Many furnaces come as coal versions too!


Watch our forced-air furnace video:



 ThermoWind 1000

Outside Waterless Furnace

is rated to heat
up to 3500 sq. ft.


ThermoWind 2000

Outdoor Waterless Stove

is rated to heat
up to 5500 sq. ft.

for only


ThermoWind 3000

Outside Waterless Wood Burning Furnave

is rated to heat
up to 6875 sq. ft.

for only


 ThermoWind 4000

Best Outside Wood Waterless Furnace

is rated to heat
up to 8500 sq. ft.
or more - home, shop, garage, etc.
With or without existing ductwork or furnace!

Two firebox doors (one on each end),
two full size furnace fans and 4 ducts
for VERY large buildings

for only

SAME 20-Year On-Site Warranty!


The Most Efficient Outdoor Wood Burning
Forced-Air Furnace there is!

Heating a well-insulated home in a climate
as cold as PA, using a good hardwood like Oak
and loading it twice a day




Shaver Pro Series 165

Heats up to 4,000 sq. ft.

36" round firebox x 34" deep

9" x 34" deep ash receptacle


Shaver Pro Series 250

Heats up to 5,500 sq. ft.

50" round firebox x 34" deep
50% bigger!

9" x 50" deep ash receptacle

Shaver Pro Series 290

Shaver Pro Series 290

Heats up to 7,000 sq. ft.

36" round firebox x 58" deep
9" x 58" deep ash receptacle

Shaver Pro Series 340

Heats up to 8,000 sq. ft.

36" round firebox x 68" deep
9" x 68" deep ash receptacle

Coal Burning Furnaces

Check them out!

These are specially designed with shaker grates
to make coal burning easy and economical. 


Top loading wood burning
Hydronic stove


Shaver Top Loader Log Burner

Up to 32,000 sq. ft!

Chest design; Log Burner

1/2" thick firebox!

Load almost 6 foot logs easily with your backhoe,
front-end loader or other machinery!

starting at $9,264




Our outdoor wood furnaces come in
20 exciting colors plus Galvalume!
...and over 8000 exciting combinations!


at No Extra Charge!


Updraft Wood Boilers

(Also available as COAL Boilers)

ALL Furnaces have E-Z READ FLOAT;
a super simple way to see your water level at a glance!

Click on Picture


NCB-80 115,000 BTU, 85-gallon water tank, 2,000 sq ft.* $3,480 Introductory Price!

  Download the NCB80 Wood Boiler Flyer

54L x 46W x 70H, 1,050 pounds

Read MORE INFORMATION about the NCB-80


NCB-120 160,000 BTU, 120-gallon water tank, 3,000 sq ft.* $5,280

  Download the NCB120 Wood Boiler Flyer

65L x 40W x 87H, 1446 pounds COAL $5,980

Read MORE INFORMATION about the NCB-120


NCB-175 220,000 BTU, 175-gallon water tank, 4,000 sq ft.* $5,980 (add $200 for 3/8)



67L x 50W x 85H, 1733 pounds COAL $6,580 (add $200 for 3/8)

Download the NCB175 Wood Boiler Flyer

Read MORE INFORMATION about the NCB-175


NCB-250 300,000 BTU, 250-gallon water tank, 6,000 sq ft.* $6,980

(add $200 for 3/8)

  Download the NCB250 Wood Boiler Flyer
Click on Picture

85L x 50W x 85H, 2114 pounds COAL $7,580 (add $200 for 3/8) Download the NCB250 Coal Boiler Flyer


Read MORE INFORMATION about the NCB-250


NCB-275G 400,000 BTU, 275-gallon water tank, 8,000 sq ft.* $7,880  COAL $8,480

Click on Picture

73L x 50W x 89H, 2113 pounds

Read MORE INFORMATION about the NCB-275G


NCB-325G 460,000 BTU, 325-gallon water tank, 10,000 sq ft.* $8,480  COAL $9,080

Showing ash pan here

Click on Pictures for a bigger photo

Download the NCB325 Wood Boiler Flyer

85L x 50W x 89H, 2313 pounds

Read MORE INFORMATION about the NCB-325G


NCB-400G 500,000 BTU, 400-gallon water tank, 12,000 sq ft.* $9,480

85L x 50W x 96H, 2613 pounds COAL $10,080

Read MORE INFORMATION about the NCB-400G

*Will heat up to (x) sq ft (This must include all heated areas of home as well as basement) with proper installation, properly insulated building and

when properly seasoned hardwood is used (20% moisture content), deduct a minimum of 500 sq ft if heating domestic hot water.


Size in
Cubic Feet
Width x Height x Depth
Door Opening Ash Pan Size
NCB-80 14.0 cu/ft square 27W x 30H x 32D 27W x 25H N/A
NCB-120 15.0 cu/ft oval 25.5W  x 31H x 36 x 21W x 22H   39 x 11.75 x 4
NCB-175 13.5 cu/ft 29 cylinder 29W x 36H x 25W -           17H 39 x 11.75 x 4
NCB-250 20.5 cu/ft 29 cylinder 29W x 54 x 25W -              17H   39 x 11.75 x 4
NCB-275G 23.4 cu/ft oval 30W x 36H x 42 x          27W x
39 x 11x 4
NCB-325G 28.5 cu/ft oval 30W x 36H x 54                   27W x 25H 39 x 11 x 4
NCB-400G 40.0 cu/ft oval 30Wx46H 54                   27W x
39 x 11 x 4


Steel thickness Water Jacket Firebox (**depends on option ordered)

NCB-80 10ga. (~ 1/8) w/7ga. bottom (~3/16)

NCB-120 10ga. (~ 1/8) w/7ga. bottom (~3/16)

NCB-175 7ga. (~ 3/16) or 3/8**

NCB-250 7ga. (~ 3/16) or 3/8**

NCB-275G 7ga. (~ 3/16)

NCB-325G 7ga. (~ 3/16)

NCB-400G 7ga. (~ 3/16)





NC-30 Pellet Stove  NC-30 Pellet Stove $2295

Download the NC30 Pellet Stove Flyer



  • 30,000 BTU
  • Stove Size: 18x22x36
  • Hopper Capacity: 40lb
  • Heating Area: Up to 1,000 sq. ft.
  • Weight: 200lbs
  • Efficiency: 88%


  • Electric Start, T-stat Control
  • Direct Vent For Easy Installation
  • Easily Adjustable Fresh Air Damper
  • Convenient Access Point For Cleaning Airways
  • Convenient Access Point For Cleaning The Blower Fan
  • View The Fire From 3 Sides (NC-40)
  • Hidden, But Easily Accessible Hopper
  • Clean, Smooth Exterior
  • Easy Access To All Sides Of The Pellet Stove. Simple For Cleaning or Adjustments
  • Vacuum Safety Switch: If there is a leak in the seal of the combustion chamber, the switch will shut down the unit.


  NC-40 Pellet Stove $2395  

Download the NC40 Pellet Stove Flyer



  • 45,000 BTU
  • Stove Size: 26x24x38
  • Hopper Capacity: 55lb
  • Heating Area: Up to 2,000 sqft
  • Weight: 335lbs
  • Efficiency: 85%


  • Electric Start, T-stat Control
  • Direct Vent For Easy Installation
  • Easily Adjustable Fresh Air Damper
  • Convenient Access Point For Cleaning Airways
  • Convenient Access Point For Cleaning The Blower Fan
  • View The Fire From 3 Sides (NC-40)
  • Hidden, But Easily Accessible Hopper
  • Clean, Smooth Exterior
  • Easy Access To All Sides Of The Pellet Stove. Simple For Cleaning or Adjustments
  • Vacuum Safety Switch: If there is a leak in the seal of the combustion chamber, the switch will shut down the unit.



Color Selection

Choose from a wide variety of colors
for our NCB-80, 175, 250 & 325G boilers!

Retail prices listed include the standard colors of Evergreen or Charcoal.

All other colors are an additional $100.00.

The NCB120 & GT-6000 are available in only their respective standard colors.

Also, color selections are close representations
but are not guaranteed exact due to differences in computer displays.

Colors Available:

Nature's Comfort Color Selection


Nature's Comfort Optional Colors







Click on the model number below to see more details

SM-V30  62 x 96

SM-H60  92 x 158

















Factory address: 3790 N SR 5, Shipshewana, IN 46565 - 877-251-7740



Shaver Furnace Cutaway


STOP! You've found the BEST! 
NO ONE ELSE has a firebox that is .469" (1/2") thick!

Most are only .125" - .1875"

We have an optional firebox
that is almost 1/2" thick*  -
for only $175 !
(water furnaces only)

Most are only .125'' - .1875"

Our closest competitor
is only 1/4" thick...
We're 87% thicker!




FIVE WOOD BURNING FURNACE SIZES for up to 8,000 square feet or more!

FOUR COAL FURNACES for up to 8,000 square feet!

FOUR Forced-Air Furnace Prices for up to 8,500 sq. ft. or more if shop, garage, etc.

Buy one NOW from $5427 (140 model) including a pump and
built-in heat exchanger for your domestic hot water -
Wood Burning Furnace PRICES HERE


15% discount for Pex Pipe,
from Abbott Boiler Supply,
exclusively for RANDY's Customers!

Click Here!     828-687-4074

Abbott Boiler Parts


The Shaver Outdoor Wood Furnace...

provides hot water to work in conjunction with your existing forced air, boiler or radiant system as well as providing domestic hot water plus heating for spas, hot tubs and pools PLUS driveways and sidewalks! Our
systems tie in easily to virtually any system; floor heating, forced air, boilers, water radiators and more.

Even if you don't have an existing system, we can make it work for you!

An outdoor wood furnace is a wood burning  furnace that sits outdoors - keeping the mess, smoke and bugs outside. The furnace, looks much like a small utility building. It is a wood fired, water-jacketed stove.

The hot water is circulated through underground Pex pipes to the inside of the house, where they are hooked to a heat exchanger in the majority of cases. 

It is also directly plumbed to the hot water heater, eliminating the need for a $200 side-arm heat exchanger for that purpose.

It can also be tied in with an existing Hydronic floor heating system or boiler.

Heating with an outdoor wood furnace has never been easier. Instead of moving the wood and corresponding mess and bugs indoors, the wood burning furnace is outdoors - next to the wood. 

Load it once at night and once in the morning and you're done! Don't believe the stories about wood burning 96 hours! See the article here.

Indoor air pollution is cut to zero by moving the fire and smoke outside, which is vital for people with Asthma, kids and the elderly. However everyone can benefit from not breathing all that smoke and particulates! Your walls and furniture will stay smoke-free and cleaner too.

Simple, clean and efficient, one furnace can heat your house and garage and a shop, spa, swimming pool, hot tub, greenhouse, etc*

PLEASE "Like" our new Facebook page for the latest information about our furnaces:

Please note that all prices listed are for the unit models only
and do not include Pex, parts or shipping costs!

Check out our boiler video:

20-Year On-Site Warranty!
5-Year On-Site 100% PAID!
Parts AND Labor!

Read about our Great On-Site Warranty Here!

It's the BEST in the industry!

Most warranties only cover parts and
also require that you ship the furnace back to them at your expense!
(It's easy to ship you a piece of metal and tell you to weld it in
or make you pay for shipping it back).

SHAVER's warranty covers
Parts AND Labor for

(except on the pump, fan and thermostat)



Building a Superior Outside Wood Burning Furnace Since 1972

Shaver Furnace Reviews 
- Customer Testimonials


Shaver Wood Burning Furnace Reviews

View the Customer Review Videos Here!


Click to verify BBB accreditation and to see a BBB report.

Click to verify BBB accreditation
and to see a BBB report


15% discount for Pex Pipe, from Abbott Boiler Supply,
exclusively for RANDY's Customers!
Click Here!     828-687-4074


in the WORLD with
when you use:

5-year Rust Blocker
Water Treatment!



Discover more reasons WHY we have the

NEW!!  Printable copy of most of this information!


Please Read!

First and foremost the firebox thickness is the most important factor. We have the thickest firebox available in the industry at just shy of 1/2" -  compared to 1/4" from our nearest competitor. That's 100% thicker and that's important because the firebox is always the first thing to fail. Most furnaces are only .125 to .1875" thick, with only 2 others that are .250" thick.

We have a 20 year parts AND labor ON-SITE warranty. Most others just cover parts or their warranty is much shorter - read the fine print!!

There is a forced-air blower in back that feeds air into the firebox, below the grate, to feed oxygen to the fire. Feeding the fire from the bottom (just like a blacksmith would) is the best way to get complete combustion from the wood. This is infinitely better than a fan on the front door blowing air into the side of the fire - or a manual draft. The fan is thermostatically controlled to keep the water at a set temperature and is adjustable.

The grates are made out of 3/4 inch bar stock. We have NEVER had one burn through!

The ash "pan" (non-removable) is approx. 16" wide x 34" long and is 8" high (on the 165 model and up to 68" long on the 340 and TW4000). Many furnaces don't even have one, requiring you to let the fire die down in order to clean it.

We also have a 50 foot POTABLE water coil (for your water heater) made out of 50 feet of coiled 5/8" OD copper tubing!

With our built-in heat exchanger don't need a separate heat exchanger for the hot water heater, often called a side-arm exchanger. We have 3 water outputs standard. One is potable water using a sealed copper coil and lines to your water heater. The other outputs give you the whole 170 - 300 gallon tank of water that is circulated with a pump to the inside heat exchanger.

We have a 170-300 gallon water tank! Many manufacturers only use 90-125 gallon tanks! The size is critical when heating a larger home. DON'T BELIEVE IT when they say they can heat 4,000 sq. ft. and have 300,000 BTU from 100 gallons. That's impossible without heating the water to over 300 degrees! Science is science!

The firebox is round and infinitely stronger than any square firebox will ever be! On the 165 model, it is 36" wide x 26" high (due to the grate and ash pan in the bottom) x 34" deep. The 340 model is 68" deep! It is made from almost 4/10th of an inch of solid steel. We've never had one rust through or crack!

It is totally surrounded with 170 -300 gallons of water, so that it absorbs the maximum amount of heat possible! The water jacket surrounding the firebox is rectangular and is made from 1/8 inch thick metal - the standard in the industry for water tanks - as opposed to auto body thickness sheet metal on others. We are two times thicker; 11 gauge vs. 16 gauge.

The chimney is made out of 5 inch schedule 40 pipe (1/4" thick) and is surrounded by water as well. It tops out at about 90" above ground. You can EASILY add extensions with standard 6" stovepipe.

The chimney is low in the firebox and exits about 1 foot from the bottom shelf, so that the smoke - or more importantly, the heat - is trapped so that it doesn't quickly escape out the flue. That would be a big loss of efficiency. This is also a better idea since you don't have baffles creating a lot of smoke and getting a creosote buildup on them that's hard to clean.

This also creates a 2nd burn chamber, to more completely burn the gases and wood! When wood starts to burn it's the escaping gas that burns first, then the wood! This is a type of gasification furnace but we do it a whole lot simpler and without any computer parts or circuit boards.

The water surrounds the ash pan as well. As anyone with a wood-stove or furnace knows, ashes put out a lot of heat!

There is a full-size rear door approx 40 x 48 inches. This makes it VERY easy to make connections and to service it. There is no need to pull the whole shell off as with other furnaces!

We have an extra large, waist-high loading door - 18" x 18" suitable for putting BIG pieces of wood in! A 30" piece, only 15" in diameter will weigh 115 lb!

The door material is made with a 1/2 inch frame and a 1/4 inch outside steel plate plus a 1/4 inch thick inside steel plate separated by the air gap between the steel plates. This door will never burn through! The insulating ability is the air gap plus the reflective factor of the inside plate. The inside plate only 4 bolts attach it to the door so there is very little heat transfer. There is also insulation between the plates now!

These furnaces now come with an automatic double flood light on the front for safety and ease of loading the wood. 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!

There are legs on the bottom with a skirt surrounding the bottom to ground level to keep it warm and dry.

The exterior is made of Heavy Duty Siding - 29 gauge with 10 coatings and it has a Lifetime film integrity warranty and 30 years against fade and chalk

We can build just about anything. Billy did one recently with FIVE outlets!

Remember, the 20 year parts AND labor ON-SITE warranty - even in Canada - is probably the best feature because at least 50% of the manufacturers out there require that you ship the furnace back to the factory to get it repaired. Then they have to ship it back and while the repair may be free, they charge you for the shipping both ways AND you have to disconnect the furnace, reinstall it and be without it for 2-4 weeks.

MORE Best Outdoor Wood Furnace HERE! with pictures

have stood the test of time. 

Many SHAVER Furnaces are still in use today after over 25 years
of putting out the heat efficiently and safely. 

SHAVER Outdoor Wood Furnaces are WELL BUILT to save you money
by producing heat effectively with a minimum of
waste, expense, or unnecessary effort.


Stop Paying those Big Oil & Gas Bills!
Keep the smoke, ashes and dirt outside!
Enjoy Nice Warm Wood Burning for a change.
Choose a Shaver Outdoor Wood Furnace Today!
Building Quality Wood Furnaces since 1972







Please consult the dealer list before ordering from the factory.

Canadian Website for Shaver Wood Burning Furnace

Please fill out our simple application


Finance Your Furnace NOW!

For As little as $91 a month with only $677 down! (Financing $4000)**

  Sales and Customer Service:  




CALL 608-519-4664


Buying stocks and profiting from them couldn't be simpler than using Cool Trader Pro
the totally automated trader!

BTU Load Calculator

WOOD vs. Gas/Oil/Electric Cost Comparison Chart 

Wood Species BTU Chart

Hydronic Wood Burning Furnace 

Find out why we DON'T use Stainless Steel and why it's a marketing gimmick designed to separate you from your money! 

WHY use Boiler Plate?


NEW!  View  and Print our Shaver Color  Brochure

NEW!!  Printable copy of most of Shaver's information!

Our Wood Furnace Website for our friends in Canada

Informative Factual Review of all Wood Burning Furnaces - Canadian Website

Our other favorite websites

Privacy Notice

Shaver Outdoor Wood Furnace
Factory: 328 Hwy 62 West
Salem, Arkansas  72576

(608) 519-4664


We are usually available from
8 AM - 8 PM CT Mon to Sat

Wed, Friday and Saturday;
8 AM - 5 PM CT


Please consult the dealer list before ordering from the factory.


Modified 12-1-14

Copyright 1995-2014

*Our standard furnace, the Shaver Pro Series 165
will heat over 4,000 sq feet including all buildings,
well insulated - plus hot water,
burning a good hardwood like oak.
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