RIZNOR OUT-Door Duct Furnace
The RP series furnaces are certified for 80% thermal efficiency for use with either natural or propane gas, as specified, in sizes from 125,000 through 400,000 BTUH input. The furnace includes an integral power vent system which provides metered combustion air, dilutes flue products and eliminates the need for a vent cap. The weatherized, aluminized steel cabinet is designed for outdoor mounting. A separate blower system is required for air delivery. The furnace has a patented Reznor® Thermo core aluminized steel heat exchanger with venture-design tubes. The die-formed burners are of aluminized steel and include flared ports with a stainless steel insert. Standard features include a spark-ignited intermittent pilot and a single stage 24-volt gas valve. Each unit has all the required limit and safety controls including a Venter pressure switch which verifies power vent flow prior to allowing operation of gas valve. For automatic operation, each unit is wired for field connection to a remote 24-volt thermostat

RIZNOR IN-Door Duct Furnace
Reznor® Model HSC Series High CFM Separated Combustion gas-fired duct furnaces are designed to separate their combustion air from the air in the heated space. These units are designed and manufactured in accordance with the ANSI definition of "separate combustion". While discharging exhaust air, the power Venter draws in combustion air from the outside atmosphere. Exclusive outside combustion air prevents dirt, lint, dust or other contaminants in the heated space from entering the combustion zone of the furnace.
The separated combustion furnace is designed for use in building areas with negative pressure and/or extremely dirty or mildly corrosive atmospheres. A specially designed combustion air inlet/vent terminal assembly supplied with HSC Series units requires only a single-building penetration for both exhaust and combustion air.
Reznor® Model HSC Series 6 duct furnaces are available in sizes from 100,000 through 400,000 BTUH gas input for use with either natural or propane gas, as specified. These units are designed for duct connection and require a separate air moving device upstream from the furnace. Model HSC Series 6 furnaces are 80% thermal efficient.
Standard features include a spark-ignited intermittent safety pilot and single-stage, 24-volt gas valve. Each unit is equipped with all required limit and safety controls, including a combustion air pressure differential switch to verify proper vent flow before allowing the gas valve to function. Operation of the heater is controlled through field connection to a remote24-volt thermostat.
Reznor®'s Model HSC Series separated combustion duct furnaces are available in two temperature rise ranges. The HSC Models are approved for a temperature rise range of 20°F to 75°F.
Model HSC furnaces are approved for installation downstream of an air conditioning coil. (When used in this application, installing an optional condensate drain on the furnace is strongly recommended. Also recommended, is the selection of optional stainless steel burners and heat exchanger.)

RIZNOR OUT-Door Duct Furnace
Reznor® Model HRPD Series Rooftop Dual Duct Furnaces are designed to be used in series as the heating component in a heating, heating/cooling, or makeup air system. Each of the dual furnaces is certified for 80% thermal efficiency for use with either natural or propane gas, as specified.
Eight sizes are available from 250,000 through 800,000 BTUH input. Each furnace includes an integral power vent system which provides metered combustion air, dilutes flue products, and eliminates the need for vent caps. The weatherized, aluminized steel cabinets are mounted on 12 gauge zinc grip rails designed for setting directly on a roof or slab surface. A separate blower system, such as Reznor® Models RBA and RBL, is required for air delivery (See Catalog RZ-C-PO).
Each furnace has a patented Reznor® Thermo core® aluminized steel heat exchanger with venture-design tubes. The die formed burners are of aluminized steel and include flared ports with a stainless steel insert.
Standard features for each furnace include a spark-ignited intermittent pilot and a single stage, 24-volt gas valve. Each furnace has all the required limit and safety controls including a venter pressure switch which verifies power venter flow prior to allowing operation of the gas valve.