The Windhager BioWIN 450XL Automatic Boiler hails from Europe and is tailored to meet your heating needs. While being fully automated, this is your environmentally friendly solution that will satisfy the rigorous demands of today's lifestyle.

The Windhager BioWIN 600XL Automatic Boiler hails from Europe and is tailored to meet your heating needs. While being fully automated, this is your environmentally friendly solution that will satisfy the rigorous demands of today's lifestyle.

Specifically designed for Gravity-Flow or Pump hot water systems, the DS Stoves DSGB-150 Gas Boiler prioritizes ease of installation. With heat exchange tubes and stainless steel baffles, the GB-150 achieves optimal efficiency for a noncondensing gas unit. The GB-150 can be installed in homes, shops, and greenhouses.

The DS Machine Stoves 3200 wood and coal burning boiler is designed and hand-made here in the USA by the Amish to be an efficient, versatile, and powerful heating option for keeping your home warm. This sturdy, efficient boiler is made not only heat a home, but it can also act as a source of hot water as well. The 3200 from DS Stoves is part of the Aquagem series, and is designed and constructed with the expertise that comes from over 30 years of experience.

The DS Machine Stoves 4200 coal burning boiler is designed and hand-made here in the USA by the Amish to be an efficient, versatile, and powerful heating option for keeping your home warm. This sturdy, efficient boiler is made not only heat a home, but it can also act as a source of hot water as well. The 4200 from DS Stoves is part of the Aquagem series, and is designed and constructed with the expertise that comes from over 30 years of experience.

The DS Stoves Stoker Furnace is a twin to the Stoker Boiler. The difference being "hot air" vs. "hot water". Constructed with a "built to last" attitude, this auger-fed stoker is designed to work with an optional 500 lb. hopper or coal bin, giving many hours of burn time.

The GH Blast Furnace requires no electricity to heat the entire area. Each unit has a powerful heat exchanger combined with the DS Circulator System for excellent gravity circulation!

The Keystoker series of furnaces are automatic, efficient, and clean coal burning heaters. There are various heat outputs depending on the model, with the most powerful models being suited towards heating commercial buildings. These coal burning furnaces use anthracite coal to help produce a hotter, and cleaner burning combustion. And with the built in patented designs that increase efficiency and clean burning even further, these truly American made furnaces stand above the competition, and for a lower price!

The America's Heat biomass boiler 170 is a powerful, and environmentally friendly way to produce up to 170,000 BTUs! There is great functionality in this corn burning boiler: it can be installed as a stand alone unit, or it can be installed as an add on to already existing systems like base-board registers, radiators, in-floor loops, and more. With ASME certification, and a 20-year limited warranty, you can trust in the strength and dependability of this biomass boiler to provide you with many years of eco-friendly warmth.

The Obadiah's Rocky Mountain Convection Blaster 450 Wood and Coal burning commercial sized furnace is capable of producing 450,000 BTUs of hot air, without electricity!  Making it one of the only large commercial furnaces that can operate this way, providing a solution for many heating situations. Whether you have a greenhouse, shop, or commercial building, the Obadiah's Rocky Mountain Convection Blaster 450 furnace will keep you warm. The heat exchanger tubes crisscross inside the firebox, this design demonstrates physics taking advantage of a natural law called Thermodynamics. As the heat exchangers heat up they draw in cool air from the outer convection jacket, the air heats up and rises to the top of the tube and into the top of the upper convection jacket, from there the air circulates naturally, no fans, no blowers, no electricity, no worries.

The Keystoker series of hot water coal boilers are efficient, clean burning, and powerful boilers that use anthracite coal to create a hot fire that keeps your home or commercial space warm. You can also burn oil as well as coal if you order a dual fuel kit. And with a nice selection of models that produce different amounts of heat, you can choose the right boiler that will fit your residential or commercial heating needs perfectly.

The DS Stoves Stoker Boiler "Aqua-Stoke" is an auger fed stoker with a pot burner, designed to burn rice coal. Constructed with a "built to last" attitude, this auger-fed stoker is designed to work with an optional 500 lb. hopper or coal bin, giving many hours of burn time.

The Glenwood Heaters Econo Flame 520 Waste Oil Furnace gives you an environmentally safe alternative for the disposal of your waste oils. You can produce tens of thousands of BTUs to heat a large building, while simultaneously ridding yourself of waste oils such as: cooking oil, motor oil (up to SAE 50), hydraulic fluids, and more! This waste oil heater is an efficient, and durable product, consistently tested at 88% efficiency. With 1/4" A36 steel plate, you can burn confident in the durability of this furnace. Despite the ruggedness of this product from Glenwood Heaters, it is easy to operate and maintain.

Meet the GHAF-400, Blu Flame's largest and most powerful self-circulating greenhouse furnace. Blu Flame's greenhouse furnaces utilize natural convection airflow that eliminates the need of any fans. This allows plants to be placed close to the heater, maximizing greenhouse space! The GHAF-400 has a BTU input of 400,000 and can heat a room up to 30' x 180', which is 5,400 sq. ft.! Choose between natural gas and liquid propane and add an optional Heat Saver Kit for increased efficiency.

Simple installation only requires a gas line, thermostat, and vent pipe - no auxiliary power required! Blu Flame's 2021 GHAF models include galvanized side and rear walls, galvanized ductwork, rear 12" elbow, and 7 - 12 x 24 pipe per unit. All models are 100% made in America with the highest quality ingredients and come with a 3-year extended warranty and 60-day satisfaction guarantee.

*Revised 10/9/2021

The Glenwood Multi Fuel Boilers have a 30 year track record of thousands of happy commercial customers who are heating their business, shops, warehouses, processing plants, barns, livestock confinement buildings, greenhouses, kilns and even homes! No other biomass boiler on the market has such a proven track record with such versatility and success. If you're looking for a high efficiency boiler that will heat your home reliably with little fuss and at a very reasonable cost, you have found it. In most cases, you can purchase an American made Glenwood boiler for less than the cost of an import, that is more efficient at transferring the BTUs from fuel, to useful heat. Most Glenwood boilers are up to 90% efficient, clean burning, without fancy computer controllers, electronics and other systems that can fail, which ultimately brings the ability of that boiler to heat, to a screeching halt.

The Glenwood Multi Fuel Boilers have a 30 year track record of thousands of happy commercial customers who are heating their business, shops, warehouses, processing plants, barns, livestock confinement buildings, greenhouses, kilns and even homes! No other biomass boiler on the market has such a proven track record with such versatility and success. If you're looking for a high efficiency boiler that will heat your home reliably with little fuss and at a very reasonable cost, you have found it. In most cases, you can purchase an American made Glenwood boiler for less than the cost of an import, that is more efficient at transferring the BTUs from fuel, to useful heat. Most Glenwood boilers are up to 90% efficient, clean burning, without fancy computer controllers, electronics and other systems that can fail, which ultimately brings the ability of that boiler to heat, to a screeching halt.

The Glenwood Heaters Econo Flame 7520 Waste Oil Boiler gives you an environmentally safe alternative for the disposal of your waste oils. You can produce tens of thousands of BTUs to heat a large building, while simultaneously ridding yourself of waste oils such as: cooking oil, motor oil (up to SAE 50), hydraulic fluids, and more! With 1/4" A36 steel plate, you can burn confident in the durability of this furnace. Despite the ruggedness of this waste oil heater from Glenwood Heaters, it is easy to operate and maintain.

The Glenwood Pennstoker 7720 Coal Fired Boiler is the ultimate solution for trouble free heating. This coal burning boiler is designed to burn cleanly, safely, and efficiently. Coal fuel is cheaper than gas, heating oil, and wood (assuming you have to buy the wood). For commercial or residential purposes, there is a Pennstoker with the right capacity to heat your building.The Burntrol modulating technology built into this Glenwood Heaters coal boiler decreases coal usage and increases combustion, dramatically improving efficiency and producing plenty of BTUs to keep your building warm.

The Glenwood Multi Fuel Boilers have a 30 year track record of thousands of happy commercial customers who are heating their business, shops, warehouses, processing plants, barns, livestock confinement buildings, greenhouses, kilns and even homes! No other biomass boiler on the market has such a proven track record with such versatility and success. If you're looking for a high efficiency boiler that will heat your home reliably with little fuss and at a very reasonable cost, you have found it. In most cases, you can purchase an American made Glenwood boiler for less than the cost of an import, that is more efficient at transferring the BTUs from fuel, to useful heat. Most Glenwood boilers are up to 90% efficient, clean burning, without fancy computer controllers, electronics and other systems that can fail, which ultimately brings the ability of that boiler to heat, to a screeching halt.

The Glenwood 3250 Automatic Multi Fuel Furnace by Glenwood Heaters is a high efficiency furnace that can be adapted to fit most heating needs. Heat from the Glenwood 3250 Furnace is from burning your choice of fuel; wood, coal, fuel oil and waste oil. A quick look at the design of this wood furnace and you'll notice the robust construction is unsurpassed, the hinges and latches are made from 1/2" thick steel. Designed to stand up to the rigors of commercial use, this unit will not let you down.