ComfortBilt HP21 Pellet Stove + Hearth Pad Combo (Save $99)
ComfortBilt HP21 Pellet Stove + Hearth Pad Combo (Save $99)
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Add your venting
Complete 3" PelletVent Pro kit for a standard horizontal through-wall installation. Black Matte o...
+ $479.00
Direction changes in your vent run. Black or Galvalume.
+ $124.98
The required first connection between the stove's exhaust hub and the vent system.
+ $43.88
Service access point for vertical vent runs — simplifies routine vent cleaning.
+ $144.72
Need individual parts? Shop all pellet venting →
Product Documents
Overview
💰 COMBO DEAL: Save $99 vs buying the stove and hearth pad separately.
🎁 INCLUDED FREE: Vent Cleaning Kit
The entry-level HP21 with its required floor protection — flatwall or corner install, one package.
Pairs the compact HP21 (31,000+ BTU, up to 2,400 sq ft, 40 lb hopper) with the correct Type 2 hearth pad for your placement — 36" standard for flat-wall installs or 40" corner pad for corner placements.
- HP21 pellet stove — remote, 7-day scheduling, thermostat support
- Type 2 non-combustible hearth pad per the owner's manual
Why buy from StoveSource: Authorized ComfortBilt dealer · No Sales Tax · Free freight shipping · Price match guarantee · 1-888-914-0022
- Stove and matching hearth pad together — the floor protection is required, not optional
- Heats up to 2,400 sq ft with 12,349–31,753 BTU/hr (EPA test)
- 76.3% HHV tested efficiency — EPA 2020 certified at 1.47 g/hr
- 40 lb hopper capacity — premium wood pellet fuel
- Convection room blower, automatic ignition and remote control included
- 3" Type L/PL pellet vent exhaust · 2" fresh-air intake
- Certified for mobile home installation with outside air connection
- 1-year manufacturer warranty — see the owner's manual for the component schedule
Specifications Show details Hide details
Specifications
| Fuel Type | Premium wood pellets |
|---|---|
| Heating Area | Up to 2,400 ft² |
| Hopper Capacity | 40 lb (18 kg) |
| Maximum Burn Time | Up to 16 hours on the lowest of five power settings |
| Heat Output Range | 12,349 – 31,753 BTU/h |
| HHV Tested Efficiency | 76.3% |
| Average Particulate Emissions | 1.47 g/h — EPA 2020 certified |
| Flue Outlet Diameter | 3" pellet vent |
| Blower | 0.70 A room blower (included) |
| Shipping Weight | 275 lb (125 kg) |
| Mobile Home / Alcove Approved | Yes (outside air intake required for mobile home) |
| Warranty | 1 year limited — 5 yr steel parts, 90 day replacement parts |
Shipping & Returns
Free freight shipping on orders over $250 · ships in 1–3 business days · curbside delivery.
Free shipping on orders over $250 to the continental US.
Ships via LTL (Less Than Truckload) freight – carriers include XPO Logistics, Estes Express, ABF Freight, Old Dominion, and FedEx Freight. Transit time is typically 3–10 business days from ship date. The carrier will call to schedule a delivery appointment.
Curbside delivery only. The driver will lower your order to the curb or end of your driveway via liftgate. This does not include bringing the item inside, carrying up stairs, or crossing uneven terrain.
Have an appliance dolly and an extra person available on delivery day. Need inside or threshold delivery? Contact us before ordering.
Inspect before signing. Before signing the Bill of Lading (BOL), check for any visible packaging damage. Write "DAMAGED" or "Subject to inspection" on the BOL if anything looks off.
Contact us within 5 business days of delivery. Open and fully inspect your item within 48 hours.
Returns. Unused, uninstalled units in original packaging can be returned within 30 days. Appliance returns are subject to a $300 return freight charge plus a 15% restocking fee. Units that have been fired or installed cannot be returned. Accessories and parts carry a 15% restocking fee.
Other accessories & add-ons
Blowers, screens, hearth pads and more for your stove.
DuraVent 3" Wall Thimble Air Intake Kit
Wall pass-through plus the outside-air connection — required for mobile homes, recommended for basements an...
$229.99
ComfortBilt B67C 3" Brush Cleaning Kit
3" brush and rod kit for routine vent cleaning. Fits all ComfortBilt pellet stoves.
$29.99
ComfortBilt / DuraVent 3" Pellet Stove Piping Kit
Complete 3" PelletVent Pro kit for a standard horizontal through-wall installation. Black Matte or Galvalume.
$429.00
DuraVent 3" Appliance Adapter
The required first connection between the stove's exhaust hub and the vent system.
$36.95
DuraVent 3" Single Tee with Clean-Out Cap
Service access point for vertical vent runs — simplifies routine vent cleaning.
$135.87
Questions before you buy? Our stove experts are here to help.
Sizing for your space
Right BTU range for your sq ft and climate.
Clearance & install
Venting and clearance for your setup.
Lead time & shipping
Real ETAs and freight scheduling.