Outside Wood Boiler

20-YEAR ON-SITE Warranty in Canada!  We send a repairman to you!

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


Call Randy - (608) 519-4664


Wood Furnace Heater


Shaver Wood Furnace

Benefits of an outdoor wood furnace boiler

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










The prices on all Nature’s Comfort units will be going up by $200 dollars starting on May 1st, 2015. Make sure you purchase your unit before then so you can take advantage of current pricing! If you have any questions call Randy at (608) 519-4664.

Read the final ruling on the 2015 EPA Law by clicking herePurchase your wood boiler before January 1st, 2016 to be grandfathered in and avoid any future regulations and price increases due to the law! After January 1st, 2016 you will no longer be able to purchase a standard wood boiler, but you will be able to purchase our EPA approved units or coal boilers. If you have any questions call Randy at (608) 519-4664.


Nature's Comfort Stoves/Boilers

Outside Stoves Boilers


Built by the AMISH!

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

We have wood and coal boilers,
pellet stoves and EPA Certified furnaces.

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

EZ-read-water-level-float ALL Furnaces have E-Z FLOAT! for easy water level monitoring and very large doors!

Most have an ash pan.
All furnaces are pre-wired and ready to install!

Many furnaces come as coal versions too!
See list below.

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Wood Boiler Pre-wired


NCB-80 Boiler

NCB-120 Boiler

 COAL Furnace

NCB-175 Boiler

COAL Furnace

Wood Furnace NCB-250

COAL Furnace

Gasification Boiler

COAL Furnace

Gasification Boiler

NCB-325G-COAL Boiler




All SHAVER furnaces have been updated with the new hot water coil cover which puts the
water level at the very top
of the water jacket!


This new design (bottom) allows the water level to be much higher allowing rust protection even to the top plate; more gallons = more reserve BTUs.

The old design (top) was about 2 inches lower,
leaving an air gap and less water.


The Shaver Pro Series 165 is only
including a pump, cold weather package
and a forced-air blower
and built-in heat exchanger for your
domestic hot water PLUS a chimney cap
AND an automatic damper.

Save 1% MORE NOW with the favorable exchange rate!





 ThermoWind 1000
is rated to heat
up to 2600 sq. ft.

ThermoWind 1000 Waterless Furnace
-Waterless Furnace
- No Chemicals


SAME 20-Year On-Site Warranty!

 ThermoWind 2000

is rated to heat
up to
4100 sq. ft. - 
50% bigger firebox

ThermoWind 2000 no water wood furnace
for only $4797


ThermoWind 3000
is rated to heat
up to 5150 sq. ft.

ThermoWind 3000 forced air wood furnace
for only

ThermoWind 4000
is rated to heat
up to 6400 sq. ft.

ThermoWind 4000 dual forced air wood furnace
for only
68" firebox with 2 doors; one on each end
and TWO full-sized furnace fans
with 4 ducts; 2 supply and 2 return


STOP! You've found the BEST! 
NO ONE ELSE has a firebox that is .469" thick!
Most are only .125" - .1875"

Most warranties only cover parts. 
(It's easy to ship you a piece of metal
and tell you to weld it in)
Ours covers Parts AND Labor for TWENTY YEARS!

To stop the scrolling text, simply
move your cursor over the box below!

Discover more reasons WHY we have the

We have a
firebox that is
almost 1/2" thick
for only $175
(water furnaces only)

Our current firebox, which we call 3/8 is actually over 4/10th at .427 - 70% thicker than the competition's 1/4" fireboxes


Most are only .125'' - .1875"

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

Outside Wood Burning Furnace




Large top-loading wood burning stove


Chest design; Log Burner, Available NOW!

Load more wood, faster,
easily, with a backhoe or
front-end loader.

Up to 6 foot logs and
10,000 sq. ft.

starting at $9,264


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


Check out our discounted PEX from
Wood Heating Solutions Parts Website

exclusively for
Shaver Furnace Customers!


We have many wood furnaces in Canada, Alaska, Romania - and a lot of other
really cold places!

We handle ALL of the paperwork needed for importing into Canada.

It is real easy now, thanks to NAFTA.


Check out our
forced-air outdoor wood furnaces NOW, (below on left) for only



Building a Superior Outside Wood Furnace Since 1972

The Shaver Outdoor Wood Furnace...

provides hot water to work in conjunction with your existing forced air, boiler or radiant floor, baseboard or radiator system as well as providing domestic hot water plus heating for a 2nd home or building, shops, garages, sidewalks and driveway snow melting, spas, hot tubs and pools.

Our systems will easily 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 outside - keeping the mess, smoke and bugs outdoors. The furnace, looks much like a small storage building. It is a wood burning, water-jacketed stove.

The hot water is circulated through insulated underground Pex pipes to the the house, where it is hooked to a heat exchanger (small radiator, like a heater core in a car) in the majority of cases. It can also be directly plumbed to the hot water heater, eliminating the need for a $300 sidearm heat exchanger and anti-scald valve for heating your domestic hot water. It can also be tied in with an existing Hydronic floor heating system, which may even be a simple hot water heater or boiler with a domestic hot water heater incorporated.

Heating with an outdoor wood burning  furnace couldn't be any easier. Instead of hauling the wood and corresponding mess and bugs indoors, the wood burning furnace is outside - next to the wood pile! 

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 and the corresponding health hazards and risks 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, efficient and clean, one furnace can heat your house and garage and a shop, spa, swimming pool, hot tub, greenhouse, driveway, sidewalk, etc*

NOW comes with an improved rear door latch and an adjustable front door latch plus a fitting standard, for a dry-well (for a probe) or thermometer and a neater, better seal around the chimney - plus a chimney cap and an automatic damper for the forced-ir fan, in the back (saves you wood!)!


20-Year Warranty!
5-Year On-Site Warranty!
Parts AND Labor
even in CANADA!

Read about our Unparalleled Warranty Here, even in CANADA!

It is without a doubt the
BEST Outdoor Wood Furnace in the industry!


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


Shaver wood furnace Logo

Coal Burning Furnaces
Check them out HERE.

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


FOUR FURNACE SIZES for up to 6,000 square feet or more!

FOUR COAL BURNERS for up to 6,000 square feet!

FOUR FORCED-AIR FURNACES for up to 7,000 sq. ft.

Priced from US$5377 including a pump, cold weather package and a forced-air blower and built-in heat exchanger for your domestic hot water plus and an automatic damper and a chimney cap.



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

Click to verify BBB accreditation
and to see a BBB report




World Exclusive - 5 year RUST BLOCKER - Best Water Treatment

about the Best Water Treatment!





3 colors Outside Wood Furnaces

Our outdoor furnaces come in
20 exciting colors
plus Galvalume!

...and over 8000 exciting combinations!



  NEW!!  Printable copy of most of this information!




Shaver Wood Furnace Reviews and Testimonials for the Shaver Wood Furnace Video Contest and

See more Shaver videos at YouTube!



We Build the
Finest Furnace Made!

...for 41 Years!



SHAVER wood fired furnaces.... 
            have stood the test of time.

Many SHAVER Wood Furnaces are still in use today after
over 41 years of putting out the heat efficiently and safely. 

We have been building them for 41 years!

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!
Get the smoke, ashes and dirt outside!
Enjoy Wood Burning for a change.
Choose a Shaver Outdoor Wood Furnace Today!
Building Quality Wood Furnaces since 1972


ALL PROVINCES call: 608-519-4664

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





Please fill out our simple application




U.S. BTU Load Calculator

BTUs per Cord of Wood (different species)

Cost Comparison Chart 

Hydronic Wood Furnace 

NEW!  View  and Print our NEW Color  Brochure

NEW!!  Printable copy of most of this information!

Our U.S. website for Outdoor Wood Burning Furnaces

Here as a great new Canadian website I found on Outdoor wood Burning Furnace Comparisons


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


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*Our standard furnace, the Shaver Pro Series 165
will heat  3,000 - 3,500 sq feet in Canada
 - including all buildings, well insulated - plus hot water, burning a good hardwood like Oak. This will normally give you a burn time of 12 hours+