Vermont Casting LHER20 manual Table of Contents

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LHE Series Natural Vent Insert

Table of Contents

PLEASE READ THE INSTALLATION & OPERATING INSTRUCTIONS BEFORE USING THIS APPLIANCE.

Thank you and congratulations on your purchase of a CFM Corporation fireplace insert.

IMPORTANT - Read all instructions and warnings carefully before starting installation. Failure to follow these

instructions may result in a possible fire hazard and will void the manufacturers' warranty.

Installation Instruction

 

Important Curing/Burning Instructions

3

Locating Your Fireplace Insert

3

Insert Applications

3

Fireplace & Trim Dimensions

4

Mantels

5

Framing & Finishing

5

Zero Clearance Applications

5

Gas Specifications

6

Gas Inlet & Manifold Pressures

6

High Elevations

6

Preparation

6

Gas Line Installation

6

Gas Supply Pressures

7

Fan Kit

7

Fan Removal Instructions

7

Installation of Trim Switch for RN/RP Gas Valves

7

Venting and Installation

8

Common Flue Installations

9

Liner Installation

9

Draft Relief Opening

9

Test Chimney Draw

9

Vent Safety System

10

Vent Safety Switch Access

10

Ceramic Refractory Installation

10

Operating Instructions

 

General Glass Information

11

Louvre Removal

11

Glass Cleaning

11

Glass Frame Removal

11

Log & Burner Lava Rock Installation

11

Large Lava Rock Placement

12

Flame Adjustment

12

Flame Characteristics

12

First Firing

13

Lighting & Operating Instructions

14

Troubleshooting Gas Control (820 Millivolt Gas Valve)

15

Troubleshooting Gas Control (Honeywell)

16

Instructions for RF Comfort Control Valve

17

Maintenance

 

Cleaning the Standing Pilot Control System

21

Trim Cleaning

21

Replacement Parts

22

Optional Accessories

 

Remote Controls

25

Zero Clearance Kit

25

Trim Options

25

Warranty

26

EnerGuide

28

2

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Contents LHEC20 LHER30 LHEC30 Table of Contents Insert Applications Installation & Operating InstructionsLocating Your Gas Fireplace Insert With Zero Clearance Kit Please Read the Following CarefullyFireplace & Trim Dimensions Minimum Fireplace Insert OpeningZero Clearance Applications MantelsFraming & Finishing An alternate air supply is recommended with this componentGas Inlet & Manifold Pressures Gas Line InstallationGas Specifications High ElevationsFan Kit Installation of Trim Switch For RN/RP Gas ValvesGas Supply Pressures Fan Removal InstructionsVenting Installation For left side installation, reverse switch positionDraft Relief Opening Common Flue InstallationsLiner Installation Test Chimney DrawAccess to the shut off switch from outside of the insert Blocked Flue Shut Off Switch AccessCeramic Refractory Installation Blocked Flue Shut Off SystemOperating Instructions Large Lava Rock Placement Flame Adjustment RN/RP ModelsFlame Characteristics First FiringPSE Pilot To Turn Off Gas To Heater What to do if YOU Smell GASTroubleshooting the Gas Control System Symptom Possible Causes Corrective ActionHoneywell Millivolt Valve On Manual Mode Shut Off ProcedureTransmitter Operation Off Mode Instructions for RF Comfort Control ValveFan Override During Auto Mode Delay Timer ModeAuto Mode Change Between F/C Temperature UnitsLED Count Service Action Replace valve Auto PathLocal Path Cleaning the Standing Pilot Control System MaintenanceTrim Cleaning Burner and Burner CompartmentLHE Series Description LHER20 LHEC20 LHER30 LHEC30Remote Switch for RN or RP Units Optional Accessories Remove the bottom door rail Product Covered by this Warranty If Warranty Service is NEEDED…Efficiency Ratings AFUE%

LHER20 specifications

The Vermont Casting LHER20 is a premium wood-burning stove that combines efficiency, aesthetics, and environmentally responsible heating. Known for its high-quality construction and innovative technologies, this model is designed to provide optimal warmth while also enhancing any living space with its classic design.

One of the standout features of the LHER20 is its exceptional thermal efficiency. With an EPA-certified design, the stove meets stringent emissions standards, ensuring that it burns wood cleanly and efficiently. This not only helps in reducing environmental impact but also translates to longer burn times and less frequent reloading, providing convenience for users.

The LHER20 incorporates advanced air management systems that promote secondary combustion. This technology re-burns exit gases from the initial burn, maximizing fuel utilization and enhancing heat output. As a result, this stove delivers a remarkable heat output, making it ideal for heating medium to large spaces.

Crafted from high-quality cast iron, the Vermont Casting LHER20 offers both durability and aesthetic appeal. It comes in several attractive finishes, including matte black and classic enamel colors, allowing homeowners to choose a look that complements their decor. The traditional styling features large glass doors that provide a captivating view of the fire, creating a cozy atmosphere and enhancing the overall experience of wood-burning.

Another notable characteristic is its user-friendly operation. The LHER20 features a simple damper control system, allowing users to easily adjust airflow for controlling the burn rate. This ensures a steady and consistent heat output while allowing users to tailor the stove’s performance to their preferences.

In terms of size, the LHER20 is compact yet powerful, making it suitable for various spaces, including cabins, homes, or even larger open-plan areas. The stove's efficient heat delivery helps create a comfortable environment during the cold months, proving its worth as a reliable heating solution.

Overall, the Vermont Casting LHER20 is an exemplary wood stove that combines tradition with modern technology. Its outstanding features, environmental responsibility, and aesthetic appeal make it a sought-after choice for those seeking to embrace the warmth and charm of wood-burning stoves in their homes. Whether for aesthetics, efficiency, or performance, the LHER20 stands as a testament to Vermont Casting's commitment to quality.