1) Calculator Inputs (Minimum Required)

 

Define the smallest useful input set so users get a clear, safety-first recommendation.

 

Required Inputs

    •    Room dimensions

    •    Length (m)

    •    Width (m)

    •    Height (m)

    •    → Used to calculate room volume (m³)

    •    Ventilation status

    •    ☐ Poor (sealed / modern airtight)

    •    ☐ Moderate (trickle vents / occasional window opening)

    •    ☐ Good (regular airflow / large openings / extractor use)

    •    Fireplace type

    •    ☐ Bioethanol (ventless)

    •    ☐ Open flame (wood / gas, no sealed flue)

    •    ☐ Sealed system (balanced flue / electric)

 

⸻

 

Output Logic (Recommendation Engine)

 

Core Rules:

    •    Room Volume Threshold

    •    < 20 m³ → ❌ Not suitable

    •    20–40 m³ → ⚠️ Use with caution

    •    40 m³ → ✅ Generally suitable (with ventilation)

    •    Ventilation Override

    •    Poor ventilation → always downgrade result by one level

    •    Good ventilation → maintain or upgrade (if safe)

    •    Fireplace Type Adjustment

    •    Bioethanol:

    •    Requires ventilation → never “fully safe” in sealed rooms

    •    Open flame:

    •    Highest risk → stricter thresholds

    •    Sealed system:

    •    Always safe baseline (no combustion gases in room)

 

⸻

 

Example Outputs

    •    ✅ Recommended

“Your room size and ventilation are suitable for a bioethanol fireplace when used as directed.”

    •    ⚠️ Use with caution

“Your room may be too small or not well ventilated. Limit burn time and ensure fresh air flow.”

    •    ❌ Not recommended

“This setup may lead to unsafe air quality. Consider a sealed or electric alternative.”

 

⸻

 

2) Guidance Copy (Plain Language)

 

When bioethanol is suitable

 

Bioethanol fireplaces can work well in larger rooms with good airflow. They’re best used:

    •    As a secondary heat source

    •    For short periods

    •    With windows or vents allowing fresh air in

 

They burn cleanly compared to wood, but still release:

    •    Carbon dioxide (CO₂)

    •    Water vapour

    •    Small amounts of other gases

 

⸻

 

When ventilation is insufficient

 

If your room is small or poorly ventilated, using a bioethanol fireplace can cause:

    •    Stuffy air

    •    Excess moisture (condensation, mould risk)

    •    Headaches or fatigue from air quality

 

Plainly put:

If fresh air can’t get in, combustion gases can’t get out.

 

⸻

 

When a safer alternative is better

 

Choose a different option if:

    •    The room is under ~20 m³

    •    Windows are rarely opened

    •    You want long burn times

 

Better options:

    •    Electric fireplaces → no emissions at all

    •    Sealed gas systems → gases vented outside

    •    Infrared heaters → efficient, no combustion

​

function գնահատBioethanolSafety(volume, ventilation) {

  let rating;

 

  // Step 1: Base rating

  if (volume < 20) rating = "not_suitable";

  else if (volume <= 40) rating = "caution";

  else rating = "recommended";

 

  // Step 2: Ventilation adjustment

  if (ventilation === "poor") {

    rating = "not_suitable";

  } else if (ventilation === "moderate") {

    if (rating === "recommended") rating = "caution";

    if (rating === "caution") rating = "not_suitable";

  }

 

  return rating;

}

{

  "@context": "https://schema.org",

  "@type": "HowTo",

  "name": "Check if a bioethanol fireplace is safe for your room",

  "step": [

    {

      "@type": "HowToStep",

      "name": "Measure room size",

      "text": "Measure the length, width, and height of your room and calculate the volume in cubic metres."

    },

    {

      "@type": "HowToStep",

      "name": "Check ventilation",

      "text": "Decide if your room has poor, moderate, or good airflow based on windows, vents, and air movement."

    },

    {

      "@type": "HowToStep",

      "name": "Compare against thresholds",

      "text": "Rooms under 20 m³ are not suitable. Rooms between 20 and 40 m³ require caution. Larger rooms are generally suitable with ventilation."

    },

    {

      "@type": "HowToStep",

      "name": "Apply safe usage rules",

      "text": "Always ensure airflow, limit burn duration, and stop use if air quality worsens."

    }

function գնահատBioethanolSafety(volume, ventilation) {

  let rating;

 

  // Step 1: Base rating

  if (volume < 20) rating = "not_suitable";

  else if (volume <= 40) rating = "caution";

  else rating = "recommended";

 

  // Step 2: Ventilation adjustment

  if (ventilation === "poor") {

    rating = "not_suitable";

  } else if (ventilation === "moderate") {

    if (rating === "recommended") rating = "caution";

    if (rating === "caution") rating = "not_suitable";

  }

 

  

}

​