How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

site-built, mobile/manfuactured and modular homes

Is a furnace allowed in a bedroom, bathroom, or an adjoining closet?

Wednesday, July 4, 2018

Bedrooms and bathrooms have two things in common: they are both typically smaller rooms and often occupied for an extended period of time with the door closed. And, in the case of a furnace, often asleep. A furnace malfunction can cause a deadly carbon monoxide (CO) buildup; so the Florida Building Code (FBC-G2406) and International Residential Code (IRC) do not allow furnace installation in a bedroom, bathroom, or an any adjoining closet unless it meets these specifications that essentially isolate the furnace from the room:

  1. The furnace is installed in a room that opens only onto the bedroom or bathroom, is used only for the furnace, has a solid and weather-stripped door equipped with a self-closer, and receives all air used for combustion from the outdoors (typical by vents into the attic), or
  2. The furnace is a direct-vent type, which is a sealed system that draws and exhausts air directly outdoors, and is installed per manufacturer’s specifications. 

    When we come across a furnace installed in a bedroom, bathroom, or adjoining closet, it is usually because the room was originally a garage or utility room that got remodeled into a bedroom suite. The homeowner left the furnace in place and remodeled around it, to avoid the expense of relocating the unit and its gas service piping, plus reconfiguring the ductwork.

    No isolation system is foolproof, so we always recommend installing a CO alarm in a bedroom or bathroom with direct-vent furnace or one in an adjacent sealed closet. Also, see our blog post Can the return air be in the same room as the gas furnace?

• • • • • • • • • • • • • • • • • • • • • • • • • • • • 

  To learn more about heating and air conditioning systems, see these other blog posts:

How can I find out the SEER of my air conditioner? 

My air conditioner won't turn on. What's wrong? 

How can I find out the size of my air conditioner? 

How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump? 

Where is the air filter for my central air conditioner and furnace? I can’t find it? 

Does an old air conditioner use more electricity as it ages? 

How did homes stay cool in Florida before air conditioning? 

What is wrong with an air conditioner when the air flow out of the vents is low?

Why has the thermostat screen gone blank? 

Why does it take so long to cool a house when an air conditioner has been off for a while? 

Why is my air conditioner not cooling enough? 

What are the most common problems with wall/window air conditioners?  

Will closing doors reduce my heating and cooling costs? 

   Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

Water Heaters

Water Heater Age

"What Are The

Signs Of..."

Septic Tank Systems

Structure and Rooms

Plumbing Pipes

Termites, Wood Rot

& Pests

Sinkholes

Stairs

When It First

Became Code

"Should I Buy A..."

Park Model Homes

Site

Shingle Roofs

Safety

Stucco

Remodeling

Wind Mitigation

Roof and Attic

"Does A Home

Inspector...?"

Pool and Spa

"What Is The Difference Between..."

Radon

Brick

Plumbing

Concrete and

Concrete Block

Metal Roofs

Foundations

Modular Homes

Rain Gutters

Mold, Lead & Other Contaminants

Condominiums

Older and

Historic Houses

Crawl Spaces

Mobile-Manufactured Homes

Building Permits

Life Expectancy

Clay Soil

Insurance

Floors

Insulation

Toilets

Exterior Walls

& Structures

Generators

Common Problems

HUD-Code for

Mobile Homes

Garages and Carports

Flat (Low Slope) Roofs

Electrical Panels

Sprinkler Systems

Electrical Receptacle Outlets

4-Point Inspections

Hurricane Resistance

Frequently Asked Questions (FAQ)

Home Inspection

Heating and Air Conditioning

Building Codes

Fireplaces and Chimneys

Inspector Licensing

& Standards

Energy Efficiency

Washers and Dryers

Electrical

Kitchens

Doors and Windows

(placeholder)

Cracks

Electrical Wiring

Click Below  

for Links

to Collections

of Blog Posts

by Subject

Plumbing Drains

and Traps

Appliances

Smoke & CO Alarms

Aging in Place

Top 5 results given instantly.

Click on magnifying glass

for all search results.

Bathrooms

Lighting

AFCI, CAFCI,

DFCI, & GFCI

Sinks

Air Conditioner & Furnace Age/Size

Attics

Electrical Switches

Siding

Search

This

Site

Water Intrusion

Electrical - Old

and Obsolete

(placeholder)

Foundation Certifications

Tiny Houses

About Us

(placeholder)

Wells