{
    "title": "Candle Space Heater",
    "inventor_name": "Doyle Doss",
    "publication_year": 2012,
    "device_name": "Candle Heater (Kandle Heeter)",
    "goal": "Capture and radiate heat from candle flames to warm indoor spaces, providing a low-cost, portable heating solution.",
    "problem_addressed": "Wasted heat from candles and need for a simple, portable heat source during power outages or in small spaces.",
    "concept_summary": "A ceramic radiator suspended above a candle flame on a steel frame absorbs the flame's heat, transfers it through nested ceramic modules, and radiates warm air into the room. The system can be built from steel, ceramic, wood, glass, and paraffin wax candles.",
    "detailed_description": null,
    "category": "Thermal Systems",
    "principles": [
        "Heat conduction",
        "Thermal radiation",
        "Natural convection",
        "Heat exchange via nested ceramic layers"
    ],
    "scientific_domains": [
        "Thermodynamics",
        "Heat Transfer"
    ],
    "mechanisms_of_action": [
        "Flame heats steel inner core",
        "Heat conducts to inner ceramic modulator",
        "Heat is transferred outward through nested ceramic modules",
        "Outer ceramic surface radiates heat",
        "Warm air circulates by convection"
    ],
    "materials": [
        "Ceramic",
        "Solid steel",
        "Wood",
        "Glass (clear plate)",
        "Paraffin wax",
        "Plastic (candle core)"
    ],
    "energy_sources": [
        "Candle combustion (paraffin wax)"
    ],
    "inputs": [
        "Candles (fuel)",
        "Ambient air"
    ],
    "outputs": [
        "Warm air",
        "Radiated heat"
    ],
    "claimed_performance": "Surface temperature can reach that of an old-fashioned steam radiator; four candles raise surface temperature by ~100  deg F.",
    "experimental_evidence": "User testimonial: \"It actually takes the chill off in a room... surface can get as warm as an old fashioned steam radiator.\" YouTube video demonstration shows four candles raising surface temperature 100  deg F.",
    "replication_status": "Purchased by a private consumer; DIY videos demonstrate construction and temperature increase with four candles.",
    "keywords": [
        "candle heater",
        "ceramic radiator",
        "portable heater",
        "emergency heating",
        "heat recovery"
    ],
    "related_technologies": [
        "Rocket stove",
        "Space heater",
        "Radiant heating panel"
    ],
    "controversy_level": "low",
    "confidence_score": 0.8,
    "practicability_score": 0.7,
    "fringe_score": 0.2,
    "evidence_strength": 0.4,
    "risk_score": 0.2,
    "trl_estimate": 6,
    "source_urls": [
        "http://www.altenergymag.com/news_detail.php?pr_id=1204",
        "http://Heatstick.com",
        "https://www.youtube.com/watch?v=zCAfAT9MVrY",
        "https://www.youtube.com/watch?v=znQeN-5NSPw",
        "http://www.dailymail.co.uk/sciencetech/article-2492549/Video-reveals-heat-home-using-just-TEALIGHTS-FLOWERPOTS--costs-just-8p-day.html",
        "https://patents.google.com/patent/US2012070132"
    ],
    "organizations": [
        "DOSS Products"
    ],
    "applications": [
        "Room heating",
        "Emergency heating during power outages",
        "Camping and RV heating",
        "Small greenhouse heating"
    ],
    "limitations": [
        "Low total heat output compared to conventional heaters",
        "Requires continuous candle fuel",
        "Potential fire hazard if not monitored",
        "Heat output limited by number of candles"
    ],
    "open_questions": [
        "What is the overall thermal efficiency?",
        "Can the design be scaled for larger spaces?",
        "Long-term durability of ceramic and steel components under repeated heating cycles"
    ],
    "red_flags": [],
    "evidence_quotes": [
        "\"It actually takes the chill off in a room. It's amazing,\" Jim Osborn.",
        "\"The surface of the radiator can get as warm as an old fashioned steam radiator,\" says Mr. Doss.",
        "Four candles raise the surface temperature 100 degrees (YouTube demonstration)."
    ]
}