The E140 model is available in both carbon steel and stainless steel. It puts out 140,000btu/hr and will heat up to 4,000 square feet. The E140 is rated at over 80% efficient.
The E140 can be used with any heating application (water-based, steam, forced-air). The Wood Gun has been tried and true for over 35 years! It was built to reduce the labor involved in a typical wood stove…
For residential wood boilers, see our Super E210.
The E140’s firebox can accommodate wood sizes ranging from unsplit logs to complete rounds up to 10”. The large firebox must only be loaded 2-3 times daily. The E140 will handle wood of relatively high moisture content, as high as 35% moisture, freeing you from curing a 12–18-month supply of wood (30% moisture or less is preferred). Unlike European-style gasifiers, the Wood Gun excels on full rounds.
Weekly cleaning allows for optimal performance. The easy-access front and rear inspection doors and included ash scoop and rake make cleaning fast and convenient.
BTU/hr
140,000
Typical Heating Capacity (square ft)
4,000
Weight (lbs)
1,650
Flue Size (in)
6
Fuel Type
Soft, Hard Logwood*
Optional Backup Fuel
Fuel Oil, Propane, NG
Standard Door Opening (in)
14x14
Firebox Capacity (cubic ft)
10
Firebox Length (in)
32
Approximate Water Capacity (gal)
80
Width (cyclone removed) (in)
26
Height (in)
64
Depth (in)
48
Electric Requirements
110V, 60Hz, 15Amp

Domestic Coil
This Domestic Coil features a 100° F rise at 5 gallons per minute, 50° water inlet temperature, and 65 PSI water pressure. It is threaded into a 4 IN NPT threaded fitting provided on the boiler for this purpose.Cycle Timer
This feature adds a timer that triggers the boiler to run for 10 minutes every 2 hours, even if there is no call for heat. This maintains an internal temperature above the kindling point, reducing the need to manually relight the unit during periods of low demand.Low Water Cutoff
A Low Water Cutoff senses the water level in the boiler’s vessel and will shut the unit down if the water level drops to an unsafe level. Available with automatic reset or manual reset.Smoke Exhaust Hood
The Smoke Exhaust Hood mounts over the loading door, capturing any smoke that may escape during the fuel-loading process. This smoke is then vented directly to the outside through a separate vent. When tolerance for smoke is low, the smoke exhaust hood is essential.Low Temperature Shutdown
If all the fuel has been consumed in your boiler, the Low Temperature Shutdown Feature will prevent the boiler from attempting to fire. This keeps the draft fan from running which would blow the remaining heat out through the flue.Oil/Propane/Natural Gas Backup
The Wood Gun wood boiler can be fitted with a backup fuel option. This requires a dedicated firing tube that must be built in during manufacturing.
The E100 is capable of producing 80,000 BTU/hr when running on oil, propane, or natural gas.
Automatic/Manual Switching
For #2 fuel oil, the oil backup can function in an automatic switch-over scenario, with fuel oil taking over when the boiler has exhausted its wood fuel. For other fuels, such as natural gas or propane, switch-over is manual only.