Cleveland Iron Works PS20W
#2 in Pellet stovesFull review
A low cost, efficient small pellet stove with app control for a cabin, garage apartment or a few rooms.
Amazon $999$999
The Cleveland Iron Works PS20W is the better stove overall, rated 3.9 to 3.4. The Cleveland Iron Works PS20W leads on value and efficiency. The Castle Serenity 41278 wins on emissions. The Cleveland Iron Works PS20W costs $300.99 less ($999 vs $1,299.99).
Castle Serenity 41278
#19 in Pellet stovesFull review
A simple, easy to clean pellet stove with good scheduling for a small home, held back by a short warranty.
Amazon $1,349 Castle $1,299.99$1,299.99
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?
- Choose the Cleveland Iron Works PS20W for value ($35.15 per 1,000 BTU of EPA tested output ($999, 28,423 BTU) vs $49.07 per 1,000 BTU of EPA tested output ($1,299.99, 26,493 BTU)) and efficiency (85% EPA tested efficiency (HHV) vs 78% EPA tested efficiency (HHV)).
- Choose the Castle Serenity 41278 for emissions (1 g/h of smoke particles (EPA) vs 1.2 g/h of smoke particles (EPA)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every pellet stoves stove; a clear win is highlighted. How we rank explains each one.
| Factor weight | Cleveland Iron Works PS20W | Castle Serenity 41278 |
|---|---|---|
| Overall rating | 3.9/5 | 3.4/5 |
| Efficiency 30% | 100 85% EPA tested efficiency (HHV) | 90 78% EPA tested efficiency (HHV) |
| Value 30% | 55 $35.15 per 1,000 BTU of EPA tested output ($999, 28,423 BTU) | 28 $49.07 per 1,000 BTU of EPA tested output ($1,299.99, 26,493 BTU) |
| Emissions 15% | 51 1.2 g/h of smoke particles (EPA) | 61 1 g/h of smoke particles (EPA) |
| Warranty 10% | 50 warranty not published (neutral score used) | 0 1-year warranty |
| Convenience 15% | 60 burn time not published, thermostat not stated, app control | 55 burn time not published, thermostat |
Specifications
| Cleveland Iron Works PS20W | Castle Serenity 41278 | |
|---|---|---|
| EPA certification | ||
| EPA certified | Yes (2020 standard) | Yes (2020 standard) |
| Efficiency (HHV) | 85% | 78% |
| Emissions | 1.2 g/h | 1 g/h |
| Tested heat output | 12,876 to 28,423 BTU | 12,807 to 26,493 BTU |
| Heating | ||
| Fuel | Wood pellets | Wood pellets |
| Type | Freestanding | Freestanding |
| Advertised output | - | 31,960 BTU |
| Heats up to | 1,200 sq ft | 1,500 sq ft |
| Catalytic | No | No |
| Blower | - | Included |
| Thermostat | - | Yes |
| App control | Yes | No |
| Fuel | ||
| Hopper | 24 lb | 40 lb |
| Power needed | 120 V outlet | 120 V outlet |
| Installation | ||
| Flue size | - | 3 in |
| Mobile home approved | - | Yes |
| Dimensions | - | 18.25 x 23.75 x 34 in (W x D x H) |
| Weight | - | 186 lb |
| Warranty | - | 1 year |
| Released | 2018-12 | 2023-08 |