The listed products are components for pellet stove or boiler maintenance and installation, not complete pellet boiler kits. The Harman firepot is the most directly relevant choice for owners of specified PF100 or PB105 units; the fresh-air intake and vent pipe kit address separate installation needs, while the gasket products are for seal replacement. Check your appliance model, required dimensions, and installation instructions before choosing.
| Product | Best For | Key Detail |
|---|---|---|
| Harman Replacement Firepot | PF100 and PB105 owners | Firepot replacement |
| Pellet Stove Fresh Air Intake Kit | Adding outside air | 2-inch inside diameter; flexes up to 60 inches |
| Comfortbilt 3-Inch Piping Kit | Compatible venting setups | Double-walled pipe; 90-degree elbow not included |
| LANUCN Gasket Rope | Replacing a narrow rope seal | 1/4-inch by 98-inch fiberglass rope |
| Midwest Hearth Gasket Kit | Replacing a wider door gasket | 5/8-inch by 84-inch graphite-impregnated rope |
Harman PF100 And PB105 Replacement Firepot
This firepot is the most boiler-specific item in this selection. It is described as a replacement for Harman PF100 and PB105 furnace and boiler units, with listed part references 1-00-73560, 1-10-73403, and 1-10-73546A. The product description identifies it as a newer-style burnpot made to the specified OEM dimensions.
Best for: Owners of a Harman PF100 or PB105 who need a replacement firepot matching the stated model and part references. It was selected because it is explicitly identified for furnace and boiler appliances, unlike the general stove seals and vent accessories in this list.
The product description says the firepot is manufactured from stainless steel and to the exact specifications of the Harman OEM lifetime firepot. Confirm the part number and appliance model before ordering; the provided details do not establish fitment for other Harman models or other brands.
Limitation: This is a replacement firepot, not a complete boiler kit. It does not include the other parts or equipment needed to install a pellet boiler system.
Pellet Stove 2-Inch Fresh Air Intake Kit
This outside-air intake kit is a separate component for pellet stove airflow. It has a stated 2-inch inside diameter and a flexible aluminum tube that extends up to 60 inches. Its mounting panels are described as 304 stainless steel, with rust-resistant, corrosion-resistant, and heat-resistant properties.
Best for: Pellet stove owners whose appliance requires a 2-inch outside-air connection and whose installation can use a flexible tube of up to 60 inches. It was selected because fresh-air intake is a distinct installation consideration from the boiler firepot, door seals, and exhaust piping.
The product description says outside air can improve airflow when room-air venting is insufficient and may help pellet combustion. Check the stove’s required intake dimensions and installation instructions before buying; the stated size alone does not confirm compatibility with every pellet stove or boiler.
Limitation: This is an air-intake kit, not an exhaust vent or a complete pellet boiler kit. The listed tube length may also be insufficient if your route requires more than 60 inches.
Comfortbilt 3-Inch Pellet Stove Piping Kit
This Comfortbilt kit is a vent-piping option for a pellet stove installation that calls for 3-inch piping. Its listed construction is double-walled PVP, and the finish is black matte. Because vent requirements and connection details vary by appliance and installation plan, treat the stated pipe size as a specification to verify, not proof of universal fit.
Best for: Buyers whose pellet stove installation calls for compatible 3-inch piping and who want a double-walled option in a black matte finish. It was selected because exhaust venting is a practical part of a stove setup, although the listing does not identify it as a boiler-specific kit.
Plan the route and check the included parts against the appliance instructions before purchase. The product description specifically notes that a 90-degree elbow for a downward turn is not included. It also says the 45-degree swivel cap comes only in galvanized color, so it may not match the black pipe finish.
Limitation: Do not assume the kit contains every fitting required for your layout. The absent 90-degree elbow is a key consideration if your planned route needs one.
LANUCN 1/4-Inch High-Temperature Gasket Rope
This replacement rope is listed at 1/4 inch by 98 inches and is made from fiberglass. The manufacturer describes it for seals on wood stoves, pellet stoves, fireplaces, ovens, and central boilers, and states a temperature tolerance of 1,100°F. That range of intended uses makes it a maintenance component to consider when an existing rope seal needs replacement.
Best for: Buyers who have confirmed that their appliance takes a 1/4-inch rope gasket and need a longer 98-inch length. It was selected because the description expressly includes pellet stoves and central boilers, making it more relevant to this search than a general-purpose seal with no stated boiler use.
The listing describes the rope as abrasion-resistant and intended to help seal against smoke leakage. Match both the diameter and the required length to the existing gasket and appliance instructions. A stated temperature rating does not by itself establish that the rope is suitable for every location or appliance model.
Limitation: This is gasket rope, not a boiler conversion or installation kit. The supplied details do not specify adhesive or other installation accessories.
Midwest Hearth 5/8-Inch Stove Gasket Kit
This kit contains a 5/8-inch by 84-inch replacement gasket, described as graphite-impregnated fiberglass rope. The manufacturer says the rope is graphite impregnated throughout and highlights abrasion resistance, crush resistance, and a creosote-resistant surface. It is marketed for replacing a worn wood stove door seal.
Best for: Buyers whose stove calls for a 5/8-inch gasket and whose required length is no more than the listed 84 inches. It was selected as a second seal option because its larger stated diameter and shorter length make it meaningfully different from the 1/4-inch by 98-inch LANUCN rope.
The product description says a failed door gasket can allow uncontrolled air into a firebox and affect heat output and drafts. Use the appliance’s specified gasket dimensions rather than choosing by appearance. The product is described as made in the USA and individually measured, cut, and bagged in Minnesota.
Limitation: The listing focuses on wood stove door seals and does not specifically claim compatibility with pellet boilers. Confirm the required gasket material, size, and use before selecting it for another appliance type.
Buying Guide: How To Choose Pellet Stove Boiler Components
Are you looking for a complete boiler kit or a replacement part?
Start by defining what “kit” means for your project. The products here cover individual needs: a boiler firepot replacement, an outside-air intake, vent piping, and gasket rope. None is presented as a complete pellet boiler system. A full system purchase may involve equipment and parts beyond the components listed here, so identify the scope of work before comparing items.
If your goal is to repair an existing boiler, identify the failed component first. A firepot, gasket, intake tube, and exhaust pipe serve different functions and are not substitutes for one another. For a new installation, compare every required component against the appliance manufacturer’s instructions and the installation plan.
How should you verify model and part compatibility?
Use the appliance model and the manufacturer’s part references as the first check. The Harman replacement firepot is specifically described for PF100 and PB105 units and lists several part numbers. That is stronger model guidance than a generic product description, but buyers should still compare the appliance label and existing part with the listing details.
For intake and vent components, check the required diameter and connection type. The intake kit states a 2-inch inside diameter; the Comfortbilt pipe listing states 3-inch piping. These measurements are not interchangeable, and the product descriptions do not confirm that either item fits every stove or boiler.
Which gasket size should you choose?
Measure the existing gasket or consult the appliance documentation. The LANUCN rope is 1/4 inch by 98 inches, while the Midwest Hearth gasket is 5/8 inch by 84 inches. Their different diameters mean they should not be treated as alternate versions of the same fit. An incorrect size may fail to seat as intended.
Also check whether the appliance calls for rope gasket and whether the material suits the installation location. The LANUCN listing describes fiberglass rope and use on pellet stoves and central boilers. Midwest Hearth describes graphite-impregnated fiberglass rope primarily for wood stove door seals. Do not infer cross-compatibility solely because both products are stove gaskets.
What matters when comparing intake and exhaust parts?
An air intake supplies outside air; vent piping handles exhaust routing. Confirm which component your project requires before shopping. For the intake kit, compare the 2-inch diameter and maximum 60-inch extended length with the planned route. For the Comfortbilt piping kit, check the pipe size and the fittings needed for the route.
Pay attention to omissions and finish details. The Comfortbilt listing says a 90-degree elbow for a downward turn is not included, and its 45-degree swivel cap is galvanized rather than black. These details can affect whether the listed parts match your layout and appearance preferences.
When should you ask an installer or the appliance manufacturer?
Ask for guidance if the appliance model, connection size, vent route, or required seal material is unclear. This is especially important when modifying an existing setup or replacing a part with a different style. Product descriptions provide useful dimensions and intended applications, but they do not replace model-specific instructions.
Before ordering, compare the product name, listed dimensions, part numbers, and stated exclusions with your project requirements. If a product description does not specify a needed feature, treat that information as unconfirmed rather than assuming the item includes it.
Frequently Asked Questions
Is any product here a complete pellet stove boiler kit?
No. The products are separate components, including a replacement firepot, intake kit, vent piping kit, and gasket ropes. None is described as a complete pellet boiler system.
Which listed item is specifically for a pellet boiler?
The Harman replacement firepot is expressly described for PF100 and PB105 furnace and boiler models. Confirm the unit model and listed part references before ordering.
Can I use the 2-inch intake kit with any pellet stove?
No universal compatibility is stated. The kit has a 2-inch inside diameter and a tube that extends up to 60 inches, so compare those specifications with the stove’s requirements.
Does the Comfortbilt piping kit include a 90-degree elbow?
No. The product description says the 90-degree elbow for a downward turn is not included. Check the parts required for your vent route.
Are the two gasket ropes interchangeable?
No. One is 1/4 inch by 98 inches, and the other is 5/8 inch by 84 inches. Choose only after checking the appliance’s required gasket dimensions and material.
What should I check before ordering a firepot?
Confirm the appliance model and compare the listed part references with the existing firepot or the manufacturer’s documentation. The listed replacement is identified for Harman PF100 and PB105 units, not all boilers.