Ventless Fireplace Safety Features: What the Code Requires
The code requires an oxygen depletion shutoff; a CO alarm is a condition of use. What each safety feature does, what it misses, and what to check.
Roksana
ANSI Z21.11.2: What a Vent-Free Certification Covers
ANSI Z21.11.2 is the unvented room heater standard. What a listing on the label actually certifies, what it does not, and how to check your own unit.
Ventless Fireplace BTU Rating Explained: The Data Plate
What the BTU rating on a vent-free fireplace data plate means, why it is an input figure, and what else on that plate decides whether a unit fits.
Ventless Fireplace BTU and Room Size: The Real Limits
Ventless fireplace BTU and room size: why per-square-foot rules of thumb are not a safe substitute, and the three places the real limits come from.
Dual Fuel Ventless Fireplace Conversion: Not a DIY Job
Dual fuel vent-free units and conversion kits: what a fuel conversion changes, why it is licensed work, and the questions to ask the gas fitter.
Ventless Fireplace: Natural Gas vs Propane Explained
Natural gas or propane in a vent-free fireplace: what actually changes, what the label settles, and why the fuel is not something you switch yourself.
Types of Ventless Gas Fireplaces: Logs, Inserts, Stoves
The four vent-free shapes compared: what changes between gas logs, inserts, stoves and wall units, what does not change at all, and who decides.
Should You Open a Window With a Ventless Fireplace? What It Really Does
The advice is everywhere and the reasoning almost never is. Here is what opening a window actually changes, and what it does not change at all.
Ventless Fireplace Start of Season Checklist: Before the First Fire
It has been off since March. Here is what to check before you light it, in order, and the four findings that mean you call a technician instead.
How to Use a Ventless Gas Fireplace: The Conditions, Not the Tricks
It is installed and it is yours. Here are the conditions of operation, the signs that mean stop, and the point where a technician takes over.