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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*
 

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!

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

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
TWENTY YEARS,
ON-SITE!
(on new furnaces except on the pump, fan and thermostat)

 

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?

Coal Burning Furnaces
NOW AVAILABLE!
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!

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

Buy one NOW from $5177
or $4147 refurbished
(140 model) including a pump and a built-in heat exchanger for your domestic hot water -
Wood Burning Furnace
PRICES HERE

EPA certified and approved outdoor wood burning furnace

4/11/11:

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

HOWEVER, Coal Furnaces may be able to be sold and installed in IN, NH, ME, PA and  VT. Purchasing a coal furnace does not have to be EPA approved in many states.

Vermont regulation exempts any wood-fuel burning equipment with a rated output of less than 40 horsepower (1 boiler hp = 34,500 Btu/hr) = 138,000 Btu. Our 165 falls into that category.

Thermowind Furnaces are permitted in Indiana and may be permitted in other states, that have
laws concerning "boilers".

Our 340 model puts out in excess of 300,000 Btu, which in some states is also excluded and therefore legal!

~~~~~~

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

IMPORTANT: 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

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