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STÛV 1678IN: is it worth buying?

Wood stove by STUV AMERICA. Also sold as STÛV 1678 CUBE, STÛV 1678H, STÛV 1678-Z.

A middle-of-the-road wood stove: no standout strengths in the EPA tests.

The catch: more smoke than most new stoves and more wood used for the same heat.

How it compares

Against all 156 new wood stoves, from the EPA's lab tests. Longer bar = better.

HeatBetter than 33%
up to 27,092 BTU an hour
Clean burningBetter than 10%
1.8 grams of smoke an hour (legal limit 2)
Heat from each logBetter than 10%
67% efficient
Burn time (firebox size)Better than 48%
1.91 cubic feet

Source: EPA certification record 5231, checked Nov 1, 2026. Smoke compared as a share of each stove's legal limit, since stoves tested on real cordwood get a higher limit.

Better-matched picks with similar heat

If one of these matters more to you, start here.

Want less smoke? Hearthstone Green Mountain 80-1 Cleaner than 96% of new wood stoves, with similar heat.
Want to burn less wood? Hearthstone Green Mountain 80 8680 Gets more heat from each log than 96% of new wood stoves.
Want longer burns? Supreme Astra 38 Bigger firebox than 95% of new wood stoves.

Other questions

What size chimney liner does it need?

Match the liner to the flue collar size in the STÛV 1678IN owner's manual, and have a certified installer confirm it fits your chimney.

It's non-catalytic. What does that mean?

There's no catalytic combustor, so no combustor part to replace down the road.

What do these numbers mean?

The EPA tests every new stove before it can be sold. "Heat" is the most heat it put out in the test. "Clean burning" is smoke per hour. "Heat from each log" is the share of the wood's energy that reaches your room. Firebox size tells you how much wood it holds, which drives how long it burns.

Check today's price: STÛV 1678IN