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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 here. Purchase 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.

Shaver, Building the Best Outdoor Wood Furnace for 41 Years

20-YEAR On-Site Warranty!

Top loading wood burning
Hydronic stove

top loading wood burning boiler

Chest design; Log Burner

Load with your backhoe, front-end loader
or other machinery!

model316 model450


Check out our ThermoWind video below:

ThermoWind 1000
is rated to heat
up to 3500 sq. ft.

Shaver Outdoor Forced-Air Wood Burning Furnace

only $4397


ThermoWind 2000
is rated to heat
up to 5500 sq. ft.�

for only $5047


ThermoWind 3000
is rated to heat
up to 6875 sq. ft.�

ThermoWind 3000

for only $5597


ThermoWind 4000
is rated to heat
up to 8500 sq. ft.�
or more if shop, garage, etc.

ThermoWind 4000

for only $6947

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

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!

Outside Wood Burning Stove



We Build the
Finest Wood Burning
Furnace Made!

…for 41 Years!


Outside Wood Burning Furnace

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

NEW!!  Printable copy of most of this information!

* cylinder/tube thickness


All IN, NH, NY, MD, ME, PA, OR, VT, WA wood burning furnaces MUST be EPA approved now.

Coal Furnaces may be able to be sold in PA, IN, NH,
VT and ME;
you may be able to purchase a coal furnace that does not have to be EPA approved, like in PA.


Thermowind Furnaces are permitted in Indiana and may be permitted in other states.

We will have a new
EPA approved stove SOON!


Shaver Wood Furnace World Exclusive Rust Chemicals

A BETTER water treatment!

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 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*


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 the automatic damper on our fan and a chimney cap!


Building a Superior Outside Wood Burning Furnace Since 1972

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).

Our warranty covers

Parts AND Labor for


(not on the pump, fan and thermostat)

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

WHY use Boiler Plate

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. 

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

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

Buy one NOW from $5177 (140 model) including a pump and
built-in heat exchanger for your domestic hot water –
Wood Burning Furnace

Our WOOD BURNING FURNACES 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