US Stove TH-100 vs Vermont Castings Defiant

Last updated: October 31, 2026

The US Stove TH-100 is the better stove overall, rated 3.5 to 3.5. The US Stove TH-100 leads on value. The Vermont Castings Defiant wins on convenience, efficiency and emissions. The US Stove TH-100 costs $4,050.01 less ($678.99 vs $4,729).

US Stove TH-100 vs Vermont Castings Defiant

Prices were last checked October 31, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.

Which should you buy?

Scores side by side

Each factor is scored 0-100 against the same fixed reference points for every wood stoves stove; a clear win is highlighted. How we rank explains each one.

Factor weightUS Stove TH-100Vermont Castings Defiant
Overall rating3.5/53.5/5
Efficiency 30%75 75% EPA tested efficiency (HHV)90 77.9% EPA tested efficiency (HHV)
Value 30%60 $26.09 per 1,000 BTU of EPA tested output ($678.99, 26,028 BTU)0 $193.02 per 1,000 BTU of EPA tested output ($4,729, 24,500 BTU)
Emissions 15%32 1.7 g/h of smoke particles (EPA)47 1.3 g/h of smoke particles (EPA)
Warranty 10%100 limited lifetime warranty100 10-year warranty
Convenience 15%20 takes 11 in logs, blower optional80 takes 25 in logs, blower optional

Specifications

US Stove TH-100Vermont Castings Defiant
EPA certification
EPA certifiedYes (2020 standard)Yes (2020 standard)
Efficiency (HHV)75%77.9%
Emissions1.7 g/h1.3 g/h
Tested heat output10,652 to 26,028 BTU12,000 to 24,500 BTU
Heating
FuelCord woodCord wood
TypeFreestandingFreestanding
Advertised output26,000 BTU56,000 BTU
Heats up to750 sq ft2,600 sq ft
CatalyticNoYes
BlowerOptionalOptional
ThermostatNoNo
App controlNoNo
Fuel
Firebox-3.2 cu ft
Longest log11 in25 in
Power neededNoneNone
Installation
Flue size6 in6 in
Mobile home approvedYes-
Safety listingULOMNI
Dimensions16.4 x 13 x 26.75 in (W x D x H)32.375 x 23.75 x 28.875 in (W x D x H)
Weight148 lb-
WarrantyLimited lifetime10 years
Released2023-10-24-

All stove comparisons →