Hardy Furnace Manual

The Hardy Furnace is a high-efficiency wood-burning heating system designed for residential and commercial use, featuring durable steel construction, advanced combustion technology, thermostatic draft control, large firebox capacity, ash removal system, and safety shut-off mechanisms. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heavy-duty steel firebox, Thermostatic draft control, Ash pan, Door latch system, Heat exchanger, Blower motor, Chimney connector.

Feature	Description
Firebox	Durable steel construction for long-lasting performance
Thermostatic control	Automatically regulates heat output based on temperature settings
Ash removal system	Easy-clean ash pan for simple maintenance
Door latch	Secure locking mechanism for safety
Heat exchanger	Maximizes heat transfer efficiency
Blower motor	Distributes heat throughout the space
Chimney connector	Standard 6-inch flue connection
Safety shut-off	Automatic shut-off in case of overheating
Viewing window	Tempered glass for fire viewing
Fuel gauge	Monitors wood levels in firebox

Installation

Unpack and inspect all components. Ensure proper clearances to combustible materials.

1. Position furnace: Place on non-combustible surface with proper clearances (36 inches from combustible walls).
2. Install chimney: Connect to approved Class A chimney system with proper height above roof line.
3. Connect ductwork: Attach supply and return air ducts according to local codes.
4. Electrical connection: Wire to dedicated 120V circuit with proper grounding.
5. Test installation: Verify all connections before first use.

WARNING! Installation must comply with local building codes and NFPA standards. Professional installation recommended.

First-Time Setup

Complete installation verification before initial firing.

1. Check clearances: Verify minimum 36 inches from combustible materials.
2. Inspect chimney: Ensure proper draft and clearance.
3. Test controls: Verify thermostat and draft control operation.
4. Initial firing: Start with small fire to cure paint and seals.
5. Adjust draft: Set thermostatic control for desired temperature range.

CAUTION! Allow proper curing time during first several fires. Ventilation required during initial burns.

Specifications

• Heating Capacity: Up to 2,500 square feet
• Firebox Size: 4.5 cubic feet
• Burn Time: 8-12 hours on full load
• Efficiency: 78% overall efficiency rating
• Flue Size: 6-inch diameter
• Blower CFM: 1,200 cubic feet per minute
• Weight: 450 pounds
• Fuel Type: Seasoned hardwood only
• Electrical: 120V, 60Hz, 5 amps
• Warranty: 20-year limited warranty

Controls and Settings

Primary controls located on front panel. Thermostatic control regulates heat output automatically.

Control Panel: Thermostat dial, Blower switch, Draft control, Safety reset button.

Temperature Settings: Adjust thermostat from 65°F to 85°F. Draft Control: Manual override for quick startup or extended burns. Blower Control: Automatic or manual blower operation. Safety Features: High-limit switch, Pressure relief valve, Door safety latch.

Connecting Venting System

Proper chimney installation critical for safe operation. Use only approved Class A chimney components.

1. Chimney height: Minimum 3 feet above roof penetration, 2 feet above any structure within 10 feet.
2. Clearances: Maintain 2-inch clearance to combustible materials.
3. Support: Use proper chimney support brackets every 8 feet.
4. Cap: Install approved rain cap to prevent moisture entry.

Tip: Have chimney professionally inspected annually for creosote buildup.

Operating Procedures

Designed for efficient wood burning with proper fuel management.

1. Loading: Place seasoned wood in firebox, leaving air space around logs.
2. Starting fire: Use kindling and fire starters; open draft fully initially.
3. Temperature control: Set thermostat once fire established.
4. Adding fuel: Open door slowly to prevent smoke spillage.
5. Ash removal: Empty ash pan when 2-3 inches accumulated.
6. Overnight burning: Load fully and reduce draft for extended burns.

WARNING! Never use gasoline, kerosene, or other accelerants. Use only seasoned hardwood.

Safety Features

High-limit switch: Automatically shuts down blower if overheating detected. Pressure relief valve: Prevents over-pressure in heat exchanger. Door safety latch: Prevents accidental opening during operation. Child safety lock: Optional lock for door mechanism.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and safety.

1. Daily: Empty ash pan, check door gaskets
2. Weekly: Clean viewing window, inspect firebrick
3. Monthly: Clean heat exchanger tubes, check blower operation
4. Annually: Professional chimney cleaning, complete system inspection

CAUTION! Always allow furnace to cool completely before performing maintenance. Wear protective gloves.

Regulatory Information

UL certified to UL 391 standards. EPA Phase II compliant for particulate emissions. Meets ASTM E1509 for solid fuel heating appliances. Manufactured in accordance with NFPA 211 standards. For technical support, contact Hardy Manufacturing at 1-800-542-7391 or visit www.hardyheater.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Poor draft	Chimney blockage	Clean chimney; check cap for obstruction; verify proper height.
Insufficient heat	Wet wood/draft setting	Use seasoned wood; adjust draft control; check door seal.
Blower not working	Power/limit switch	Check electrical connection; reset high-limit switch; verify thermostat setting.
Smoke spillage	Negative pressure	Open window slightly; check chimney draft; verify proper installation.
Excessive creosote	Cool flue temperatures	Burn hotter fires; use seasoned wood; increase chimney insulation.

Reset: Press safety reset button if blower stops unexpectedly.

Service: 1-800-542-7391; www.hardyheater.com