Rinnai FC510N Vent-Free Fan Convector – Natural Gas
The Rinnai FC510N delivers efficient, quiet heat in a compact vent-free design built for small rooms, offices, cabins, and insulated spaces. With up to 10,000 BTU of clean-burning Natural Gas performance, this unit maintains comfortable warmth using a variable-speed fan, electronic thermostat, and built-in safety sensors—all without the need for venting or ductwork.
Key Benefits
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Vent-free heating eliminates the need for venting or duct installation.
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Compact 10,000 BTU output sized for small to mid-size rooms.
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Natural Gas model for homes with existing NG service.
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Quiet variable-speed blower maintains steady, comfortable warmth.
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Electronic thermostat offers precise, easy temperature control.
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Cool-touch cabinet enhances safety for family environments.
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Oxygen Depletion Sensor (ODS) provides added protection for vent-free operation.
Specifications
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Model: FC510N
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Fuel Type: Natural Gas
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BTU Range: ~5,500 – 10,000 BTU/h
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Dimensions: approx. 19.3" H × 22.7" W × 9.4" D
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Thermostat: Electronic, variable-set control
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Fan: Variable-speed for even heat distribution
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Safety: ODS sensor, overheat protection, cool-touch cabinet
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Installation: Vent-free, floor-mount against interior wall
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Warranty: Manufacturer Limited Warranty
Comparison Chart
| Model |
Fuel Type |
BTU Range |
Room Size |
Dimensions (H × W × D) |
Blower |
Safety Features |
Best For |
| FC510N |
Natural Gas |
~5,500 – 10,000 BTU |
Small rooms |
Approx. 19.3" × 22.7" × 9.4" |
Variable-speed fan |
ODS sensor, cool-touch cabinet, tip-over protection |
Bedrooms, offices, cabins |
| FC510P |
Propane |
~5,500 – 10,000 BTU |
Small rooms |
Approx. 19.3" × 22.7" × 9.4" |
Variable-speed fan |
ODS sensor, cool-touch cabinet, tip-over protection |
Cabins, cottages, off-grid rooms |
| FC824N |
Natural Gas |
~8,200 – 22,000 BTU |
Medium–large rooms |
Approx. 23.6" × 27.5" × 10.4" |
Variable-speed fan |
ODS sensor, cool-touch cabinet, overheat shutdown |
Basements, living rooms, large additions |
| FC824P |
Propane |
~8,200 – 22,000 BTU |
Medium–large rooms |
Approx. 23.6" × 27.5" × 10.4" |
Variable-speed fan |
ODS sensor, cool-touch cabinet, overheat shutdown |
LP homes, cabins, large spaces |
Common Uses
- Small bedrooms and offices
- Cabins, insulated spaces, and cottages
- Home additions or zones without ductwork
- Supplemental heat for cold rooms
NOTE: Rinnai Vent-Free Fan Convectors are intended for supplemental heating only according to the International Fuel Gas Code (IFGC) and should be used in applications as such. Some states prohibit the use of unvented heaters. Check local codes for your area to verify approval of use.
State of California: NOT AVAILABLE
California law requires this notice to be provided: California Proposition 65 lists chemical substances known to the state to cause cancer, birth defects, death, serious illness or other reproductive harm. This product may contain such substances, be their origin from fuel combustion (gas, oil) or components of the product itself.
* It is recommended that a trained and qualified professional who has attended a Rinnai training class complete the installation. The warranty may be voided due to any improper installation.
— Installation and service must be performed by a licensed professional.
Specifications:
Color
Off-White
Gas Type
Natural Gas and Propane
Input Range (Low/High)
Natural Gas: 5,500 / 10,000 BTU
Propane: 5,600 / 10,000 BTU
AFUE Rating
99.9%
Fan Output (Low/High)
67.8 / 97.8 CFM (1.9 / 2.8 CMM)
Dimensions:
Width: 19.2 inches (487 mm)
Height: 19.4 inches (492 mm)
Depth: 9.6 inches (244 mm)
Shipping Weight
22.1 lbs (10kg)
Power Consumption (Electronic ignition)
19 watts
Standby Power Consumption
N/A
Noise Level
28 - 38 dB
Total Extended Vent
N/A
Total Vertical Vent
N/A
Certifications
CSA for U.S. only
Warranty*
3-year on parts
Approved Altitude
5,200 ft. (1,585 m)
Product Height
19.4 in / (492 mm)
Product Width
19.2 in / (487 mm)
Product Depth
9.6 in / (244 mm)
Product Weight
22.1 lb / (10 kg)
Shipping Depth (inches/mm)
23 in / (584 mm)
Shipping Height (inches/mm)
23 in / (584 mm)
Shipping Width (inches/mm)
22 in / (559 mm)
Shipping Weight (lbs/kg)
26.5 lb / (12 kg)
