Shaker Grate Boiler
The Shaker Grate Portage & Main Outdoor Water Furnace aka a shaker grate boiler primary fuel is coal.
Cost is one of the main reasons consumers are switching to alternative heating energy for their heating needs. There are a variety of coal burning boilers, coal furnaces, coal boilers with shaker grates, coal stoker boilers, coal stoves and coal water furnaces on the market.
If you are tired of being cold, with thermostat set in the low 60 degrees, while you are wearing sweatshirt and sweat pants over long underwear just to keep warm, to keep the utility bill affordable, you owe to yourself to check out the Portage & Main Outdoor Boilers | Water Furnaces that burn coal. They make saving money on home or business heating easy. Coal burning is clean and easy with a Portage & Main Outdoor Furnace with shaker grates.
Top 10 Reasons to Use a Portage & Main Outdoor
Coal Boiler| Coal Outdoor Water Furnace
- The highly efficient multi-pass heat exchanger maximizes heat extraction from the flue gasses.
- The water filled and cooled baffle permits the first and second passes of flue gasses which, then, travel swirling and twirling through a water surrounded, heat exchanger of over nine feet, with a 180 degree reversing return before exiting the stack. The furnace has a high efficiency rating.
- It burns ⅓ to ½ (or even less) coal to provide more heat. The Portage & Main Outdoor Water Furnace delivers maximum btu outputs from minimum coal inputs.
- All parts are laser cut which permits precision fitting and the bevel to be welded with strong total penetration double welds (boiler style).
- The round fire pot and multi pass heat exchanger is made of W44 cold rolled ¼" mild steel. W44 ¼" cold rolled mild steel is uniform, durable and welder friendly. Journeyman Welders will attested to the significance and importance of this.
- Round firepot:
- Eliminates side wall warping.
- Has less expansion/contraction therefore less weld stress.
- Is self circulating; therefore no cold or hot spots.
- Gives the fire better flame contact with the metal.
- Stronger to last longer, just as the steam engines were round for a reason.
- The durable galvanized ash pan and the shaker grates allow the Portage and Main outdoor coal burner to bring combustion air in under the grates. Under air combustion gives a complete burn of gases-quick recovery and reduced smoke emissions. Also because of the shaker grates and the ash pan, the bottom ⅓ of our stove is not full of ash, we are able to radiate heat into the bottom ⅓ of the fire pot which is the cold area and best potential for heat transfer. Portage & Main furnace/boilers ash pan allows you to clean the ash pan safely while the furnace is operating.
- "Johnson Controls" — (digital water temperature controls) automatically adjust the damper. Aqua stat is programmable to within one degree (no upward creeping temperature). Portage & Main Outdoor Water Furnaces also have a high limit safety aqua stat.
- The one piece roof of the Portage & Main Outdoor Water Furnace is powder-coated finish for long life. The roof has no trims to rust and deteriorate. It will look good for years. All components of the Portage & Main Outdoor Water Furnace are painted with excellent enduring products.
- Convenience, Installationand Saftey Considerations:
- Convenient loading height door has safety cam lock latch to prevent blowbacks. Pyramid style door is insulated with Roxul insulation (insulation value of 2200 degrees). Door is sealed with top quality industrial rope gasket.
- All surfaces are insulated or water cool for safe operation. Furnace is insulated with R20 fiberglass insulation that will not sweat, crack or gas off. The well insulated and waterproof unit has a 2 inch insulated base.
- The easy to access rear connection and controls are protected by a large, hinged, lockable door. There is plenty of room for multiple hook ups.
- Water levels are indicated by a convenient float. There is no sight glass or tubes to fog or discolor.
- The handy transport and install hook makes installation placement easier.
- Shaker Grate Models come with cleaning tool, certified chemical water treatment and standard stainless steel chimney.
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Portage & Main Outdoor Water Furnaces (Shaker Grate Outdoor Coal Boilers) are available in three sizes — ML 30, ML 36, ML 42
Portage & Main Outdoor Water Furnace Shaker Model ML30 Specs
| Portage & Main Boiler ML30 Shaker Grates |
Specifications |
| Maximum Furnace Output (BTU/Hour) |
175 to 200 K |
| Heating Area (sq. ft.) |
5,000 |
| Total Width x Total Depth X Total Height |
48" x 57" x 70" |
| Shipping Weight (pounds) |
1,900 |
| Chimney Size |
6" |
| Door Size (w x h) |
20" x 17" |
| Firepot (d x l) |
30" x 44" |
| Water Capacity (~ US gals) |
100 |
| Electrical Requirement |
120 volt |
| Heat Exchanger |
Multi- Pass |
| Limited Warranty |
25 years |
Key Benefits
- Advanced coal heat with resource reserves—savings for your pocketbook.
- Simple operation and maintenance
- Highly Efficient — burns ⅓ to ½ less coal while providing more heat.
- Under combustion air — complete clean burns.
- Best warranty — call now 1-800-561-0700 for full explanation.
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Reliability — durable long lasting units.
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Portage & Main Workmanship
Portage & Main Workmanship Portage & Main Outdoor Water Furnaces have a long history of great performance. Round fire pots and ¼" cold-rolled steel means less risk of warping related problems. The welding strength is increased by the boiler style double welds. W44 cold rolled steel has the same corrosion resistant properties as boiler plate. It is know for being a very "uniform" steel, ideally suited to forming without fatiguing. Corrosion is easily controllable with top quality certified boiler water treatment.
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