Blocked Flue Shut Off System

LHE Series Natural Vent Insert

These inserts are equipped with a blocked ﬂue shut off switch. This switch is factory installed, wired and tested. Check and make sure the switch and wires are in the proper position. The shut off switch is heat activated and wired in series with the pilot system. (Fig. 13)

Operation of this ﬁreplace when not con- nected to a properly installed and main- tained venting system or tampering with the blocked ﬂue shut-off system can result in carbon monoxide (CO) poisoning and possible death.

	Bracket
FP1356	Blocked Flue Shut Off
FP1356	Switch

Fig. 13 Blocked ﬂue shut off switch location.

Blocked Flue Shut Off Switch Access

The shut off switch system of these inserts is designed to be accessed from either inside the combustion ﬁrebox chamber or outside at the back of the inserts ﬁreplace.

Access to the shut off switch from outside of the insert

1.Turn off the unit and let it cool down if it has been operating.

2.Shut off the gas and the electrical source to the ﬁre- place.

3.Disconnect the gas line and the draft hood of the ﬁreplace.

4.Slide the ﬁreplace out.

Access to the shut off switch directly from inside the combustion ﬁrebox chamber.

1.Turn off the unit and let it cool down if it has been operating.

2.Remove the log set and remove the ceramic refrac- tory if installed.

3.Remove the ﬁrebox bafﬂe. (Fig. 14)

4.Remove the shut off switch cover fastened with four

(4) screws located at the right upper corner of the ﬁrebox.

5.This time you can access the shut off switch as- sembly through the rectangular opening. Remove the screw that secures the switch assembly. Holding

the bracket switch carefully pull out the entire switch assembly.

NOTE: The shut off switch cover was attached with the gasket cover. Before installing the gasket cover back in place, inspect and make sure the gasket is not dam- aged. If the gasket is damaged, install a new gasket.

Screw must be removed prior		Screws
to pulling the switch assembly		Screws
		Cover
		Safety
		Switch
		Gasket Cover
		Safety Switch
		Bracket Shut
		Off Switch
Screws	Screws
Firebox Bafﬂe		FP1352

Fig. 14 Access to the blocked ﬂue shut off swtich from inside combustion chamber.

Ceramic Refractory Installation

1.Remove front glass.

2.Remove logs from unit.

3.Remove refractory from package.

Refractory are fragile and must be handled with care. Where at all possible, two hands should be used when handling.

4.Take center refractory and tilt so bottom edge seats onto the rear log bracket at the back wall of the ﬁre- place. (Fig. 15)

5.Press center refractory to back side of ﬁreplace and hold in place.

6.Take left or right refractory and align it so leading edge faces outward. (Place refractory in ﬁreplace side and slide it back to support the center refrac- tory.)

7.Repeat step 6 for remaining side refractory.

8.Fasten bracket supports against refractory top to hold side in place.

When side refractory is installed correctly, the center refractory will be supported by the side refractory.

	Leading Edge		Leading Edge
			Leading Edge
		Bottom Edge
Left Side		Center	Right Side
			FP1329
Fig. 15	Ceramic refractory.
			10005360

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.