Conversationist® Large Volume COF and COBT
These dual-fuel units (natural gas/oil or propane/oil) are great for large commercial, industrial and institutional applications. They provide storage capacity up to 575 gallons and up to 2.5 million BTU/hr input. All models feature multiple anodic protection to guard against tank corrosion.

Conversationist® Small Volume COF
These oil-fired models are ideal for mid-sized commercial applications (up to 700,000 BTU/hr input). The larger models have an optional two-stage pump for use with below-grade oil storage tanks. And every model features two handhole cleanouts for easy servicing.