The WC70 Multi-Fuel Boiler puts out 265,000 BTU/hr and can heat homes ranging from 3,000 to 7,000 sqft. It is perfect for homeowners looking for a rugged, durable boiler that can burn a variety of fuels.
The WC70 comes standard with:
- Legacy Grate System
- Large 14” Loading Door
- Automatic Dual Draft System – Forced Draft Blower and Natural Draft Damper
- Firebrick Lined Firebox
- Water Cooled Baffle (for increased efficiency)
- Hydro Tested to 60PSI
- Constructed of ¼” Steel Plate
- Honeywell Circulator Control Aquastat
- Temperature/Pressure Gauge
- ASME Tested Pressure Relief Valve
- Load Door Smoke Flap
The WC70 Multi-Fuel boilers’ cost of ownership is one of the lowest in the industry—$35.00 – $50.00 per year on average!
Traditionally, Multi-Fuel boilers have been sold as wood/coal combinations. However, due to EPA Phase 2 regulations, these units are no longer sold for continuous use with wood.
Want a liquid fuel backup option for ultimate flexibility? Check out our WOC70 model.
For automatic feeding boilers, please explore our Wood Gun or Coal Gun product lines.
- Pressurized Vessel
- Flexible Fuel Options
- Easy Maintenance
- Cost Effective
- Fuel Efficient
- Lifetime Durability
BTU/hr
265,000
BTU/hr Oil or Gas
N/A
Typical Heating Capacity (square ft)
3,000 - 7,000
Weight (lbs)
1,450
Flue Size (in)
8
Fuel Type
Wood*, Hard Coal, Soft Coal
Optional Backup Fuel
N/A
Standard Door Opening
14x14
Firebox Capacity (cubic ft)
14
Firebox Length (in)
36
Water Capacity (gal)
70
Width (in)
28
Height (in)
59
Height to Flue Opening (Center) (in)
45
Depth (in)
40
Coal Capacity (lbs)
250
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.
Oil/Propane/Natural Gas Backup
The Multi-Fuel boiler can be fitted with a backup fuel option. This option requires a dedicated firing chamber for the boiler that must be built in to the vessel during manufacturing. This chamber is water jacketed for its entire length for excellent heat exchange and efficiency.
Automatic/Manual Switching
For #2 fuel oil, the backup system can function in an automatic switch-over scenario, with fuel oil taking over when the boiler has exhausted its coal fuel. For other fuels, such as natural gas or propane, switch-over is manual only.
Insulation Jacket
Our base unit Multi-Fuel boilers have no insulation on the outside of the boiler, allowing maximum heat radiation in the boiler room. If you prefer to circulate more of this heat, an insulation jacket can be added to the boiler. This insulation jacket is comparable to that used on the Wood Gun or Coal Gun boilers
ASME Certification
The ASME Certification guarantees the steel grade and weld quality of the boiler water jacket. Each ASME Certified water jacket has been pressure tested to 60 PSI, and includes a 30 PSI release valve.
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.