Electric Fireplaces · Head-to-head

PuraFlame Klaus 33" vs R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)

PuraFlame Klaus 33"
Best Insert for an Existing Fireplace

PuraFlame Klaus 33"

6.8/10
$429.99 at Amazon
Check price at Amazon
R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)
Best Large Ultra-Thin

R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)

7.0/10
$359.99 at Amazon
Check price at Amazon

The short answer

R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U) comes out ahead overall with 7.0/10 against 6.8/10 for the PuraFlame Klaus 33". PuraFlame Klaus 33" is stronger on flame realism & ambiance. R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U) is stronger on installation & fit, controls & features, safety & indoor air and value. At current verified prices, the R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U) costs about $70.00 less.

Scores by criterion

CriterionPuraFlame Klaus 33"R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)
Flame realism & ambiance 7.8Rated most realistic by one hands-on tester; capped because there is no second tester, and CR found all tested inserts' flames fake-looking. 6.5Big multicolor linear display; modern rather than lifelike.
Heating performance 6.5750/1,500 W with thermostat; owners report the thermostat is inconsistent. 6.51,500 W with thermostat; heat doesn't scale with the 68-inch width.
Installation & fit 6.5Existing firebox only; no hardwire option; check the height variant. 8.5Fits 2x6 studs or mounts on the surface; the 67 lb weight needs a solid wall.
Controls & features 7.0Remote, thermostat, flame-only mode and crackle sound. 7.5Thermostat, timer, sleep mode and touch panel; no smart control.
Reliability & build quality 6.0Owners report some heater failures; warranty is unpublished. 6.0Series reports of a finicky remote, grinding noise and units damaged on arrival.
Safety & indoor air 6.0Cool-running glass door; no UL/ETL mark found. 7.5ETL with heat kill switch (Bob Vila, PopSci).
Value 6.5$430 live is fair for the look, but well above its roughly $330 low. 8.0$360 for a 68-inch ETL unit.

Specifications

SpecPuraFlame Klaus 33"R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)
Install type Fireplace insert (existing firebox) Recessed or wall-mount linear
Width 33.06 in 68 in
Depth 7.8 in 3.9 in
Max heater power 1,500 W 1,500 W
Manufacturer-claimed heating area 400 sq ft 400 sq ft
Heater type Fan-forced Fan-forced
Adjustable thermostat Yes Yes
Flame-only mode Yes Yes
Wi-Fi / app / voice control No No
Safety listing — ETL

PuraFlame Klaus 33"

Pros

  • Most realistic look according to Bob Vila's tester
  • Resin logs, brick interior and glass door
  • 750/1,500 W heater with thermostat
  • Flame runs without heat
  • Recommended by four outlets

Cons

  • Owner reports of heater and thermostat failures
  • Cannot be hardwired
  • Crackle sound isn't very realistic
  • No published safety mark
  • Listed height varies with trim

The best-looking way to convert a real fireplace, as long as you accept some reliability uncertainty.

Full PuraFlame Klaus 33" review →

R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U)

Pros

  • ETL certified with overheat shut-off
  • 3.9 in deep; fits 2x6 studs
  • 12 flame and 12 bed colors
  • 68–88°F thermostat and 8-hour timer
  • Mid-range price for its size

Cons

  • 67 lb, so the wall must be solid
  • Series owners report remote and noise issues
  • No smart control
  • Heat is the same 1,500 W class as smaller units

The best way to get a large, slim, certified linear fireplace without paying smart-home money.

Full R.W.FLAME 68" Recessed & Wall Mounted (ZYHD-868C3U) review →

Both products are part of our guide The Best Electric Fireplaces of 2026, where you can see every pick, how we score and current prices from each retailer.