Newmac Wood Oil Combination Furnace Manual

The Newmac Wood Oil Combination Furnace is a versatile heating system designed to burn both wood and oil fuels, providing reliable heat for residential and commercial applications. This dual-fuel furnace features automatic fuel switching, efficient combustion technology, thermostat control, safety shut-off systems, and durable construction. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation Requirements 3. First-Time Setup 4. Technical Specifications 5. Controls and Operation 6. Fuel System Connections 7. Maintenance Procedures 9. Safety Features 10. Care & Cleaning 11. Regulatory Information 12. Troubleshooting

Features at a Glance

Key components: Dual combustion chamber, oil burner assembly, wood firebox, thermostat control, flue system, fuel switching mechanism, safety controls.

Feature	Description
Dual fuel capability	Automatically switches between wood and oil fuels
Thermostat control	Maintains consistent temperature settings
Safety shut-off	Automatic shutdown in case of malfunction
Efficient combustion	High-efficiency burn technology for both fuels
Durable construction	Heavy-gauge steel with heat-resistant lining
Flue system	Standard 6-inch flue connection
Oil tank connection	Standard 1/2-inch fuel line connection
Ash removal system	Easy-access ash pan for wood combustion
Fuel gauge	Oil level indicator and wood capacity markings
Power requirements	Standard 120V AC electrical connection

Installation Requirements

Professional installation recommended. Ensure proper clearances and ventilation.

Location: Install on non-combustible surface with proper clearances to walls and combustible materials.
Ventilation: Ensure adequate fresh air supply and proper flue installation.
Electrical: Connect to dedicated 120V AC circuit with proper grounding.
Fuel connections: Install oil supply line and wood storage area according to local codes.

WARNING! Furnace generates extreme heat; maintain proper clearances. Installation must comply with local building and fire codes.

First-Time Setup

Complete installation verification before initial operation.

System check: Verify all connections, clearances, and safety devices.
Fuel supply: Fill oil tank and prepare wood supply.
Initial startup: Follow lighting procedure for both fuel types.
Thermostat calibration: Set desired temperature ranges and fuel preferences.

CAUTION! First startup should be monitored closely. Check for proper draft and combustion.

Technical Specifications

Heating Capacity: 80,000-120,000 BTU/hr
Fuel Types: Wood and #2 heating oil
Efficiency: 78-82% AFUE
Flue Size: 6 inches diameter
Electrical: 120V AC, 60Hz, 5 amps
Wood Capacity: 24-inch logs maximum
Oil Consumption: 0.5-1.2 gallons per hour
Dimensions: 48" H x 30" W x 36" D
Weight: 450 pounds
Warranty: 10 years on heat exchanger, 1 year parts

Controls and Operation

Main control panel includes thermostat, fuel selector, power switch, and safety indicators.

Operation: Set thermostat to desired temperature. Select fuel preference (wood primary, oil primary, or automatic). System will maintain temperature using selected fuel priority.

Temperature Control: Adjust thermostat for comfort level. Fuel Selection: Choose between wood-only, oil-only, or automatic switching. Safety Indicators: Monitor for proper operation and shutdown conditions. Maintenance Alerts: Regular service reminders for cleaning and inspection.

Fuel System Connections

Oil supply: 1/2-inch copper or steel line from storage tank. Wood loading: Front-loading door with safety latch.

Oil connection: Install shut-off valve and filter in supply line.
Wood preparation: Use seasoned hardwoods for optimal performance.
Fuel switching: System automatically switches when primary fuel is depleted.

Tip: Maintain adequate fuel supplies for both systems during cold weather.

Maintenance Procedures

Regular maintenance ensures optimal performance and safety.

Daily: Remove ashes from wood combustion chamber.
Weekly: Check oil filter and clean if necessary.
Monthly: Inspect flue system for obstructions.
Seasonally: Professional inspection and cleaning recommended.
Annually: Complete system inspection and combustion efficiency test.

WARNING! Allow furnace to cool completely before performing maintenance. Always disconnect power before servicing.

Safety Features

Overheat protection: Automatic shutdown at unsafe temperatures. Draft safeguard: Monitors flue draft conditions. Fuel safety: Automatic fuel shut-off in emergency conditions. Pressure relief: Built-in pressure relief valve for steam systems.

Care & Cleaning

Regular cleaning maintains efficiency and extends furnace life.

Cleaning: Remove ashes daily when using wood. Clean heat exchanger surfaces annually. Inspect and clean flue system before heating season. Check and clean oil burner nozzle as needed.

CAUTION! Wear protective equipment when handling ashes or cleaning combustion areas.

Regulatory Information

UL certified for safety standards. EPA compliant for emissions. Meets ASHRAE efficiency standards. Installation must comply with local building codes and NFPA standards. For technical support, contact Newmac Heating Systems at 1-800-563-3398 or visit www.newmac.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power interruption/thermostat	Check circuit breaker; verify thermostat settings; ensure power switch is on.
Poor heat output	Fuel quality/air flow	Check fuel supply; clean heat exchanger; verify proper draft.
Frequent shutdowns	Overheating/blockages	Check for obstructions; verify proper clearances; clean system.
Fuel not switching	Selector setting/supply	Verify fuel selector position; check both fuel supplies.
Unusual noises	Mechanical issues	Inspect moving parts; check for loose components; professional service recommended.

Reset: Power cycle unit if safety lockout occurs.

Service: 1-800-563-3398; www.newmac.com