FUEL

Fuel Specifications - Using the Ultragrate™ burn system, this appliance has been designed to burn wood residue pellets only (with up to 3% ash content). Agricultural pellets (i.e. corn, alfalfa etc.) are not permitted to be burned in the stove. Dirty fuel will adversely affect the performance of the stove. The pellet fuel should meet P.F.I. (Pellet Fuel Institute) standards for standard grade or premium grade residential pellet fuel. If the pellet fuel meets these standards, it will be printed on the bag. Any questions regarding pellet fuel can be answered at the Pellet Fuels Institute (PFI), www.pelletheat.org.

Pellet Feed/Pellet Size - The pellet feed system is designed to handle a wide range of pellet sizes up to a maximum of 5/16” diameter. Different pellets may feed at considerably different rates. You may notice a differ- ence in the burn if you change pellet fuel sizes. The longer the pellet, the slower it will feed and vice versa. If the stove will not stay burning at the minimum fuel feed setting, those particular pellets may not be feeding fast enough. If this happens, reduce the amount of combustion air by adjusting the damper. See Page 9 before adjusting the damper.

Clinkering - Silica (or sand) in the fuel, along with other impurities, can cause clinkering. A clinker is a hard mass of silica formed in the burning process. Clinkering is a function of the fuel, (not the stove), but adversely affects the performance of the stove by blocking off the air passages in the grate. Even P.F.I. approved pellet fuel may tend to clinker. A clinker can be removed from the UltraGrate™ and placed in the ash pan with the use of the grate scraper/ash pan tool furnished with your stove. See Routine Maintenance (on Pages 21 through 24) for more information on cleaning.

Ash - The frequency of removal of the ash and maintenance performed on the stove is directly proportional to the ash content of the fuel and the operation duration of your pellet stove. Low ash fuel may allow longer intervals between cleaning, however, a stove burning high ash fuel may need to be cleaned as often as everyday.

PLEASE NOTE: Lennox Hearth Products has no control over the manu- facturing of pellet fuel and will not be held responsible for poor stove performance or any damage caused by poor quality pellet fuels.

Note: See Fuel Delivery Rate on Page 18 for burn times.

CAUTION

The use of unapproved, dirty, wet and / or high salt content fuel will void the warranty!

Wood pellets manufactured to the pellet fuels institute (P.F.I.) certification standard are available in two grades, Standard and Premium. The primary difference between the two is the ash content of the pellets.

The P.F.I. specification for standard grade & premium grade residential pellet fuel is as follows:

•CHLORIDES (Salt): Less than 300 p.p.m. to avoid stove and vent rusting.

•BULK DENSITY: 40 lb. / Cu. Ft. minimum

•MOISTURE CONTENT: 8% maximum

•ASH CONTENT: < 3% maximum (standard grade) < 1% maximum (premium grade)

•FINES: 0.5% maximum through a 1/8” screen

•BTU CONTENT: There are a number of variations in pellet fuels that are not included in PFI standards. For example, BTU (heat value) content may range from just under 8,000 to almost 9,000 BTU, depending upon species and region of the country and other variables.

FUEL FEED RATES

Different brands of pellets will feed at varying rates due to their size and density (length and diameter). This may require a slight adjustment in the damper adjustment (see Page 9) or the fuel feed trim control to compensate (see Page 18).

ROUTINE MAINTENANCE

Cleaning

IMPORTANT

Unplug and Ensure Stove is Cold Before Performing Any Maintenance Work.

The following areas need to be inspected and cleaned during routine cleaning:

•Heat Exchange Tubes / Tube Scraper (Homeowner)

•Baffle Plates (Qualified Technician Only)

•Proof of Fire Switch (Qualified Technician Only)

•Window Wash (Homeowner)

•Ash Clean-Out Ports (Qualified Technician Only)

•Paint Touch-up (Qualified Technician Only)

•UltraGrate (Burn Grate) (Homeowner)

•Ash Slide Plate (Homeowner)

•Ash Pan (Homeowner)

•Exhaust Passages / Vent Pipe and Creosote Removal (Qualified Techni- cian Only)

•Gaskets (Qualified Technician Only)

•Cleaning Rear Stove Compartment (Qualified Technician Only)

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Lennox Hearth 32FS operation manual Fuel Feed Rates, Routine Maintenance, Cleaning
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32FS specifications

The Lennox Hearth 32FS is an exceptional fireplace designed to enhance both the aesthetic and functional aspects of any home. With its innovative technologies and user-friendly features, this model stands out as a premier choice for those looking to introduce warmth and elegance into their living space.

One of the primary features of the Lennox Hearth 32FS is its impressive heating capacity. With a BTU output that provides efficient heating to large areas, this fireplace is perfect for open floor plans or vast living rooms. This capability ensures that the space remains cozy and inviting even in the coldest months.

The combustion technology integrated into the Lennox Hearth 32FS is noteworthy as well. Utilizing a clean-burning system, it maximizes heat output while minimizing emissions, making it an environmentally-friendly option. The glass door design enhances air regulation and combustion efficiency, ensuring that homeowners get the most out of each burning cycle.

Another characteristic that sets the 32FS apart is its aesthetic appeal. The fireplace features a sleek and modern design, allowing it to blend seamlessly into various home decors, from traditional to contemporary. Customizable options, including different front designs and surround materials, allow homeowners to choose a look that aligns with their personal style.

Additionally, the Lennox Hearth 32FS provides ease of use and control. The model comes equipped with an intuitive remote control system, allowing users to adjust settings without leaving their seat. Whether it’s adjusting the flame height or configuring the thermostat, the convenience provided by this technology is undeniable.

Durability and build quality are other prominent aspects of the Lennox Hearth 32FS. Constructed from high-quality materials, it is designed to withstand the test of time, ensuring consistent performance year after year. The fireplace’s design includes advanced insulation techniques, which not only enhances efficiency but also ensures safety during operation.

In summary, the Lennox Hearth 32FS is a sophisticated fireplace featuring advanced heating capabilities, clean combustion technology, and a stylish design that caters to varying tastes. Its user-friendly controls and durable construction make it a reliable choice for anyone looking to invest in an energy-efficient heating solution that adds charm and comfort to their home.
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