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Rinnai

Rinnai FC824P Ventless Propane Heater

  • Indoor Outdoor Usage: Indoor
  • Fuel Type: Propane
  • Heating Method: Forced Air
  • Heating Element: Radiant

Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A fixed vent-free wall heater with real safety redundancy and thermostat control, worth it mainly if you are set up for professional installation and want set-and-forget room heat rather than a portable unit.

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ASIN: B00K86BXLQModel: FC824PCategory: Propane Space Heaters

Overview

The Rinnai FC824P is a vent-free, wall-mounted propane heater with a programmable digital thermostat, built as a fixed heat source for a bedroom, living room, office, shop or garage rather than a portable camping heater.

Because it is ventless and wall mounted, Rinnai recommends professional installation rather than a DIY setup, and the listing itself repeats that installing without a qualified technician is not advised. The safety package layers a flame failure device, overheat switch, oxygen depletion sensor and tilt switch on top of a child safety lock.

  • Programmable digital thermostat
  • Flame failure, overheat, oxygen depletion and tilt safety switches
  • Vent-free, ductless wall mount design
  • 10-year heat exchanger warranty, 5-year parts, 2-year labor

Who it's for

Homeowners wanting a permanent, thermostat-controlled propane heat source for one room, and willing to pay for professional installation, are the right buyer. Anyone wanting a heater to move between rooms or take camping should look elsewhere.

Pros and cons

Pros
  • Programmable thermostat holds a set room temperature
  • Layered safety systems: flame failure, overheat, oxygen depletion and tilt switches
  • Child-safe cool-to-touch cabinet with a safety lock
  • 10-year warranty on the heat exchanger
Cons
  • Professional installation is recommended, adding to the real cost
  • Fixed wall mount, not portable between rooms

Performance notes

The unit heats through a warm air outlet with bottom front louvers rather than an open radiant burner, and the digital thermostat holds a set temperature automatically instead of requiring a manual knob adjustment. A self-diagnostics feature is built in to flag maintenance issues before they become failures.

Specifications

BrandRinnai
ModelFC824P
Dimensions & fit
Item Weight26.5 pounds
Item Dimensions D x W x H2 × 2 × 2 inches
Capacity & performance
Heating MethodForced Air
Heating ElementRadiant
Heating Coverage22000 square feet
Power & efficiency
Fuel TypePropane
Power SourceGas
Voltage120 volts
Amperage4 amps
Construction & materials
ColorBeige
Compatibility & installation
Mounting TypeWall Mount
Included components
Unit Count1
Included ComponentsHeater
Other details
Indoor Outdoor UsageIndoor
Form FactorWall-Mounted With Cabinet
Room TypeLiving Room
Number of Items1
Recommended Uses For ProductUse
Special FeaturesManual
Part NumberFC824P
Item Type NameNatural Gas

Frequently asked questions

Does the Rinnai FC824P need a vent or chimney?

No, it is a vent-free, ductless design meant to be installed directly on an interior wall.

Can I install the Rinnai FC824P myself?

Rinnai recommends using a qualified Rinnai PRO technician rather than installing it yourself.

What safety features does it have?

A flame failure device, overheat switch, oxygen depletion sensor, tilt switch and a child-safe locking cabinet.