Common Flue Installations

Vermont Castings, Majestic Products LHE Natural Vent Insert

Zero clearance kit minimum clearance to combustibles materials is 1" (25mm) for B Vent (use of single wall vent is not allowed.)

As with any natural drafted appliances, the vent cap must always extend a minimum of 2' (610mm) above any structure within a 10' (3m) horizontal plane. (Fig. 10)

	0 To 10’
	2’ Min.	0 To 10’
	3’	0 To 10’
	Min.	(3m)
		2’	3’
		(610mm)	3’
		Min.	(914mm)
			Min.
	Reference
	Point
AC246a
Fig. 10	Example of the 2', 3', 10' rule.

A minimum 12' (3.7m) vent height is required to effectively vent these fire- places.

In some areas it is possible to vent more than one gas appliance into the same flue. You must ensure that the flue being shared has the proper capacity to handle both appliances. Check installation codes for venting capacity information.

As always it is best to check with the authority having jurisdiction prior to commencement of the installation.

Liner Installation

Insert liner from top of chimney through the damper opening and attach to 3" flue collar for LHEC20 and LHER20 and 4" flue collar for LHEC30. For best results use three (3) sheet metal screws and a hose clamp.

For natural draft inserts, packing noncombustible fiberglass insulation around the liner in the damper area will isolate the fireplace cavity from the chimney and prevent drafts and noises during operation.

In case the fireplace opening is only minimum height

(17¹⁄₄" (438mm) for LHEC20 and LHER20; 21" (533mm) for LHEC30) and access from the front is not possible, remove the flue collar plate - unscrew and slide out from the back of the unit. Now attach the liner to the flue collar, lift up and slide flue collar plate back onto the unit top. It is important that the plate is completely inserted and the front screw is fastened again in order to line up the flue outlet and the liner properly. (Fig. 11)

If the fireplace lintel is wider than 8" (205mm), the height of the fireplace opening must be 25" (635mm) to allow for a 90° offset elbow to be installed.

Damper		Chimney Liner
Damper			Damper
		Chimney
Draft		Liner
Draft
Hood	Clamp	Screw	Clamp
			ST1354
Fig. 1 Remove flue collar plate and attach to flue collar.

Draft Relief Opening

This insert is equipped with a draft-relief opening which receives its dilution air supply through the opening at the back of the insert. These openings must not be obstructed or entered any way. (Fig. 12)

Test Chimney Draw

1.A "Chimney Draw" test must be conducted before the installation is complete.

2.Close all doors and windows in the home and start exhaust fans in he kitchen and bathroom.

3.Light unit and operate for 5 minutes.

4.Hold an ignited match or cigarette in front of the unit. Refer to drawing for the location of the draft hood opening. (Fig. 12)

5.Check to make sure smoke from the match or cigarette is drawn into the fireplace. If it is not, turn the unit off and check for causes creating the lack of adequate draft.

Test for draft at these two openings.

FP1355

Fig. 12 Hold an ignited match in front of fireplace.

10005360

LHEC30, LHEC20 specifications

Vermont Casting has long been recognized for its commitment to quality and craftsmanship in the world of home heating appliances, and their LHEC30 and LHEC20 models exemplify this dedication. Both units are highly praised for their advanced features, efficient heating capabilities, and timeless design, making them popular choices for homeowners seeking warmth and comfort.

The LHEC30 is a powerful heater, showcasing a robust construction that utilizes cast iron, known for its excellent heat retention properties. This model is designed to deliver exceptional performance while maintaining an aesthetic appeal that blends seamlessly with traditional and modern décor. With a heating capacity of up to 3,000 square feet, the LHEC30 is perfect for larger spaces. It efficiently distributes heat through a radiant heat system, ensuring an even warmth throughout the room.

The LHEC20, on the other hand, is tailored for smaller spaces, with a heating capacity suitable for areas up to 1,600 square feet. Despite its smaller size, the LHEC20 does not compromise on performance. It offers many of the same advanced heating technologies found in its larger counterpart, making it a versatile option for various home sizes.

Both models feature Vermont Casting’s advanced combustion technologies, including secondary combustion, which significantly increases efficiency and reduces emissions. This feature ensures that the wood is burned more completely, resulting in less smoke and cleaner air. Additionally, an easy-to-use air control system allows users to adjust the burn rate according to their heating needs.

Another characteristic that sets these models apart is their decorative cast iron façade, available in multiple finishes to complement any interior style. The large glass doors provide a beautiful view of the flames, enhancing the cozy ambiance of any setting.

Vermont Casting’s LHEC30 and LHEC20 also prioritize user convenience with features such as easy access for cleaning and maintenance. The efficient design makes them not only functional but also a stylish focal point in any room.

With their blend of efficiency, elegance, and innovative technology, the LHEC30 and LHEC20 models by Vermont Casting stand out as excellent investments for homeowners looking to add both warmth and style to their living spaces. These heaters exemplify how practicality can meet aesthetics, making them a central part of any home heating solution.