
Overview
The first connection in every ComfortBilt vent run — the 3" appliance adapter joins the stove's exhaust port to your PelletVent Pro system.
The ComfortBilt manuals require a 3" appliance adapter as the first connection to the stove's 75mm exhaust hub, secured with high-temperature (500°F+) sealant and screws.
Fits any pellet stove with a 3" flue outlet, regardless of brand. Measure your stove's exhaust outlet — if it's 3", this adapter fits. Pellet vent is system-specific at the joints, so build the rest of the run from PelletVent Pro components; it will not lock to another manufacturer's pellet vent.
Why buy from StoveSource: Authorized dealer · No Sales Tax · Free shipping over $300 · Email or text 1-888-866-8206
Shipping & Returns
Free shipping on orders over $300 · ships in 1–3 business days.
Free shipping on orders over $300 to the continental US; a flat $24.95 shipping fee applies to orders under $300. Accessories and parts ship by parcel carrier (UPS, FedEx, or USPS), typically in 1–3 business days.
Returns. Unused, uninstalled items in original packaging can be returned within 30 days, subject to a 15% restocking fee.
Sold by StoveSource (authorized dealer). Ships directly from the brand's authorized distributor warehouse — see our Authorized Dealer page.
Recommended for these stoves
The manufacturer recommends this accessory for the following stoves we carry. If your stove isn’t listed, contact us to confirm fit before ordering.
ComfortBilt HP22 Pellet Stove
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ComfortBilt HP22N Pellet Stove
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ComfortBilt HP50S Pellet Stove
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ComfortBilt HP61 Pellet Stove
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ComfortBilt HP21 Pellet Stove
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ComfortBilt HP75C Pellet Stove (FREE $161 Ash Vacuum)
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ComfortBilt HP21 Pellet Stove + Hearth Pad Combo (Save $99)
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ComfortBilt HP22 Pellet Stove + Hearth Pad Combo (Save $249)
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ComfortBilt HP22N Pellet Stove + Hearth Pad Combo (Save $99)
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ComfortBilt HP50S Pellet Stove + Hearth Pad Combo (Save $249)
View stove →
ComfortBilt HP61 Pellet Stove + Hearth Pad Combo (Save $249)
View stove →