The supplied product details do not verify that any listed item is an EPA-certified wood stove insert. The Comfort Glow is a wood-burning insert, the ComfortBilt is a pellet insert, and the three Midwest Hearth products are replacement catalytic combustors—not complete inserts. The options below may help with a replacement-part or alternative-heating search, but verify an appliance’s current EPA certification and exact model before buying. The Comfort Glow is the closest match for someone shopping for a wood insert; the ComfortBilt is for buyers considering pellets.
| Product | Product type | Best suited to |
|---|---|---|
| Comfort Glow CGWI1800 | Wood fireplace insert | Buyers seeking a wood-burning insert for a space listed up to 1,200 square feet |
| ComfortBilt HP22i | Pellet fireplace insert | Buyers open to pellet fuel and a larger stated heating area |
| Midwest Hearth Blaze King Princess catalyst | Replacement combustor | Owners confirming the specified combustor dimensions and stove model |
| Midwest Hearth Vermont Castings catalyst | Replacement combustor | Owners of compatible Defiant or Encore Flexburn models |
| Midwest Hearth Regency Pro/Hampton catalyst | Replacement combustor | Owners confirming fit for listed Regency Pro or Hampton inserts |
Comfort Glow CGWI1800 Wood Fireplace Insert
Best for: Buyers looking for a wood-burning fireplace insert with a stated heating area of up to 1,200 square feet. Of the supplied products, this is the closest match to a search for a wood stove insert because it is described as an indoor wood fireplace insert, rather than a pellet appliance or replacement part.
The listed features include reinforced 3/16-inch plate steel, firebrick lining, and a large ceramic viewing window. The maker describes the unit as providing high heat output for indoor spaces. These details help distinguish it from the catalyst products below, which are parts for existing stoves and do not provide a complete heating appliance.
Certification check: The supplied product information does not state that the CGWI1800 is EPA-certified. Do not treat the product name or construction features as proof of certification. Verify the exact model in current EPA or manufacturer documentation and check local installation requirements before purchase.
Limitation: Its stated heating area is up to 1,200 square feet; the listing does not establish suitability for every home or climate. Choose this only after confirming certification, installation fit, and heating needs.
ComfortBilt HP22i Pellet Fireplace Insert
Best for: Buyers who want to consider a pellet insert rather than a wood-burning insert. The product is described as a zero-clearance fireplace insert and lists heating up to 2,800 square feet under mild temperature conditions. Its fuel type makes it an alternative, not a direct match for shoppers who specifically require a wood-burning appliance.
Listed features include output of up to 41,000 BTU per hour, a 47-pound hopper, and up to 18 hours of burn time. The listing also says it includes a finishing shroud, ash vacuum, and remote control. These specifications give buyers several practical comparison points, including fuel storage and stated operating duration.
Certification check: The supplied details do not establish EPA certification for this exact model. Confirm the applicable certification and installation instructions directly before treating it as an eligible substitute for an EPA-certified wood insert.
Limitation: This is a pellet appliance, so it does not meet a requirement for burning cordwood. Its stated heating area is conditional on mild temperature conditions, not a guarantee for every home.
Midwest Hearth Blaze King Princess Replacement Catalyst
Best for: Owners of a Blaze King Princess stove who need a replacement catalytic combustor and have confirmed that this product’s 4-by-10.6-inch, 2-inch metal dimensions match their appliance. It is not a complete stove insert and cannot serve as a substitute for one.
Midwest Hearth describes its combustors as ceramic products developed with input from ceramic and chemical engineers. The supplied listing says the combustor can reduce harmful emissions and may help a catalytic stove use less wood or burn longer than a non-catalytic stove. Those are product claims, not proof that a separate stove or insert is EPA-certified.
Why it is included: It is relevant to buyers maintaining an existing catalytic wood-burning appliance, a related but distinct need from buying a new EPA-certified insert. Use the listed model and dimensions as starting points for checking compatibility.
Limitation: Fit depends on the exact stove and combustor specification. Confirm the manufacturer’s required part dimensions and model before ordering; a replacement catalyst does not certify or upgrade an appliance by itself.
Midwest Hearth Vermont Castings Replacement Catalyst
Best for: Owners of a compatible Vermont Castings Defiant or Encore Flexburn appliance who need a ceramic replacement combustor. The listed dimensions are 2.5 by 12.75 by 1 inch. This product is a stove component, not a standalone insert.
The listing makes the same general claims as the other Midwest Hearth combustors: it is designed to decrease emissions and help reduce wood use or extend burn time in a catalytic stove. Treat those claims as descriptions of the replacement part. They do not demonstrate that an appliance meets EPA certification requirements.
Why it is included: Buyers comparing insert ownership costs may also be looking for maintenance parts for an existing catalytic stove. This option is specifically identified for Defiant and Encore Flexburn models, making model verification central to the purchase decision.
Limitation: The named appliance family and dimensions must match the owner’s actual stove and required part. Do not choose it based on brand name alone, and do not expect a replacement combustor to turn a non-certified stove into a certified insert.
Midwest Hearth Regency Pro/Hampton Replacement Catalyst
Best for: Owners of a compatible Regency Pro or Hampton insert who need a catalytic combustor measuring 3 by 18.5 by 2.5 inches. It is the supplied replacement part most directly associated with named insert models, but it is still a component rather than a complete heating appliance.
The product description identifies a ceramic combustor and states that the maker’s engineers work to improve its products. It also claims emissions reduction and potential wood-use and burn-time benefits when used in a compatible catalytic stove. Buyers should verify the exact model and part requirements instead of relying on general claims about combustors.
Why it is included: It gives current Regency Pro or Hampton insert owners a model-specific maintenance option to investigate. For someone shopping for a new insert, the complete appliance—not this part—must be checked for EPA certification.
Limitation: The listing information does not confirm compatibility with every Regency or Hampton model. Check the existing unit’s manual or manufacturer parts information before ordering.
Buying Guide: How to Choose an EPA-Certified Wood Insert
Is the product a complete insert or a replacement part?
Start by identifying what you need. A complete fireplace insert is a heating appliance installed in a fireplace. A catalytic combustor is a replaceable component inside certain stoves or inserts. A catalyst may be relevant to maintenance, but it is not a stand-alone heater and does not establish the certification status of the appliance it goes into.
Among the five products here, the Comfort Glow is described as a wood fireplace insert. The ComfortBilt is a pellet insert. The other three are replacement combustors. If your requirement is specifically a new wood-burning insert, do not compare a replacement catalyst as though it were an equivalent product.
How can you verify EPA certification?
Look for certification information for the exact make and model, not a broad product category or a seller’s general description. The supplied product features do not document EPA certification for any of these five items. Check current EPA resources and manufacturer documentation, and compare the model designation carefully. If certification is a purchase requirement, ask the seller or manufacturer for clear documentation before ordering.
Certification of a complete appliance and claims about a replacement catalyst are different things. A component’s stated emissions benefits do not prove that a particular stove or insert is certified. Keep the appliance model and the replacement-part model separate when reviewing records.
What heating area and output should you compare?
Compare a product’s stated heating area and output with the rooms you plan to heat, but treat those figures as product specifications rather than guarantees. The Comfort Glow listing gives a maximum area of 1,200 square feet. The ComfortBilt listing says up to 2,800 square feet under mild temperature conditions and up to 41,000 BTU per hour. The figures are not directly comparable without considering fuel, home layout, climate, insulation, and installation.
A larger stated area does not automatically mean a better fit. Oversizing or undersizing can affect comfort and operation. Ask a qualified installer to assess the fireplace, home, and local conditions before choosing an appliance.
Does the fuel type match your needs?
Wood and pellets are different fuels, so decide which fuel you intend to use before comparing models. This article’s Comfort Glow is listed as wood-burning; the ComfortBilt uses pellets. Consider fuel availability, storage, and the appliance’s operating requirements. If you specifically want a cordwood-burning insert, the pellet model is not an equivalent replacement.
How should you compare catalytic replacement parts?
For a replacement combustor, match the part to the exact stove or insert model and the manufacturer’s required dimensions. The three Midwest Hearth options name different appliance families and have different listed measurements. Confirm both before ordering. A similar-looking part or a shared brand name is not enough to establish fit.
Also check the appliance manual for maintenance instructions. A replacement part’s claimed benefits depend on correct fit and use, and the supplied product data does not provide a universal installation procedure. Do not assume replacing a catalyst changes an appliance’s regulatory status.
What installation details should you confirm?
Before buying a complete insert, confirm fireplace measurements, venting and chimney requirements, clearances, and local rules with the manufacturer and a qualified professional. The supplied product descriptions do not establish that any product will fit a particular fireplace. Confirm installation requirements before making a purchase rather than relying on the stated heating area alone.
Frequently Asked Questions
Are any of these five products confirmed as EPA-certified wood stove inserts?
No. The supplied details do not verify EPA certification for any item. One product is described as a wood insert, one is a pellet insert, and three are replacement combustors. Check current documentation for the exact appliance model.
Which listed product is the closest match for a wood-burning insert?
The Comfort Glow CGWI1800 is the closest match because its listing describes it as an indoor wood fireplace insert. Its supplied features do not confirm EPA certification, so verify that separately before buying.
Is the ComfortBilt HP22i a wood stove insert?
No. It is described as a pellet stove fireplace insert. It may suit buyers considering pellet fuel, but it is not a direct substitute when cordwood is required.
Can a replacement catalyst make a stove EPA-certified?
The supplied information does not support that conclusion. A catalyst is a replacement component, not a complete appliance, and its emissions claims do not certify the stove or insert. Verify certification for the complete appliance model.
How do I know which Midwest Hearth catalyst fits my stove?
Match the appliance model and required dimensions to the exact replacement part. The three products identify different stove or insert families and measurements. Check the appliance manual or manufacturer parts information before ordering.
Does a stated heating area guarantee that an insert will heat my home?
No. A stated area is a product specification, not a guarantee of performance in every home. Climate, room layout, insulation, installation, and operating conditions affect heating results.