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Yes, a pellet stove can heat an entire house—as long as you choose one that’s large enough for that purpose. For context, pellet stoves generate between 8,000 and 90,000 British Thermal Units (BTUs), and you’ll need 30 to 60 BTUs per square foot, depending on your climate zone. If you’re unsure which size pellet stove to buy, reach out to a local pellet or wood stove repair company.

A chimney liner isn’t required for an outdoor fireplace; you don’t technically need one if the masonry chimney uses the proper dimensions and is built to code. However, a chimney liner does serve as a protective coating for the flue. Adding a liner could improve performance, safety, and durability. In short, while not necessary, it wouldn’t hurt.

How you stop your fireplace from smoking depends on the cause. Sometimes it’s as simple as opening the damper. Other times, you need to battle air pressure. The best course of action is to ensure proper ventilation, whether that means opening a door or a window; avoid building a large fire, which produces more smoke; and use seasoned hardwoods, which produce less smoke than other types of wood. If the issue persists, call a pro ASAP.

You should not use Windex or any other ammonia-based glass cleaners when cleaning the glass doors or glass front panel of a gas fireplace. Instead, remove the glass and lay it on a soft surface, like a drop cloth or towel. Then clean it using a specialty fireplace glass cleaner purchased at a hardware store or online. If the glass is relatively clean, you can get away with a vinegar and water solution, but tougher stains will require a specialized cleaner.