Gas Appliance Service near you

Half of what a good gas service visit looks at is not the appliance but the space around it. The model fuel gas code requires air for combustion, ventilation and dilution of flue gases to be provided by one of the methods it prescribes, and where the indoor air method is not satisfied, outdoor air has to be introduced by one of the code's outdoor methods. The standard indoor calculation is concrete: the minimum required volume is 50 cubic feet per 1,000 Btu per hour of the appliance input rating, summed across every appliance in the space. Where a building's air infiltration rate is known to be less than 0.40 air changes per hour, the code requires the known-infiltration-rate method instead, which is why a house that has been air-sealed can fail a calculation it once passed.

Where outdoor combustion air is used, the openings themselves are specified. The minimum dimension of an air opening must be not less than three inches, and under the two-permanent-openings method one opening commences within 12 inches of the top and the other within 12 inches of the bottom of the enclosure, communicating directly or by ducts with the outdoors. The code also requires appliances to be located so as not to interfere with proper circulation of combustion, ventilation and dilution air, and requires makeup air where exhaust fans, clothes dryers and kitchen ventilation systems interfere with the operation of appliances.

Location is regulated too. Appliances must not be located in sleeping rooms, bathrooms, toilet rooms, storage closets or surgical rooms, or in a space that opens only into such rooms, with a short list of exceptions built around direct-vent appliances, specified vented heaters in rooms meeting the volume criteria, small unvented room heaters with stated input limits, enclosures with a self-closing weather-stripped door taking combustion air directly from outdoors, and a clothes dryer in a residential bathroom with a permanent opening of at least 100 square inches to a space outside the sleeping or bathroom area. If an appliance in your house sits somewhere on that prohibited list, that is the finding, and it is not one to argue with.

The connection between the gas piping and the appliance is a small piece of hardware with a disproportionate share of the rules attached to it. The model code permits appliances to be connected by rigid metallic pipe and fittings; by corrugated stainless steel tubing installed in accordance with the manufacturer's instructions; by listed and labeled appliance connectors complying with ANSI Z21.24 and located entirely in the same room as the appliance; by listed quick-disconnect devices or listed convenience outlets used together with listed connectors; by listed outdoor appliance connectors; or, for portable outdoor appliances, by listed outdoor gas hose connectors made up in the outdoor area where the appliance is used.

CPSC describes carbon monoxide as the invisible killer, a colorless and odorless gas produced by burning fuel. Its initial symptoms resemble the flu without the fever: headache, fatigue, shortness of breath, nausea and dizziness. The instruction if you suspect poisoning is specific and unusually direct. Get fresh air immediately. Leave the home and call for assistance from a neighbour's home, because you could lose consciousness and die if you stay. Get medical attention immediately and tell medical staff that carbon monoxide poisoning is suspected, and call the fire department to determine when it is safe to re-enter.

One symptom pattern is worth committing to memory: CPSC lists poisoning symptoms that are experienced when you are home but lessen or disappear when you are away from home as a clue you cannot see. That is a household-level signal that no single appliance gauge will give you.

On alarms, CPSC's advice is to install battery-operated carbon monoxide alarms, or plug-in alarms with battery back-up, and that every home should have one in the hallway near the bedrooms in each separate sleeping area, certified to the requirements of the most recent UL, IAS or CSA standard for carbon monoxide alarms. It is equally clear that an alarm provides added protection but is no substitute for proper installation, use and upkeep of the appliances that are potential sources.

The building code treats alarms as a construction requirement rather than advice, and the detail differs by jurisdiction, so the version your state or city enforces is the one that counts. In the model residential code, alarms must be listed in accordance with UL 2034, and combination carbon monoxide and smoke alarms in accordance with UL 217 and UL 2034. The model text triggers the new-construction requirement where a dwelling unit contains a fuel-fired appliance or has an attached garage with an opening communicating with the dwelling unit.

Washington, in the version Seattle enforces, strikes that trigger and simply requires an approved alarm installed outside each separate sleeping area in the immediate vicinity of the bedrooms and on each level of the dwelling, in accordance with the manufacturer's recommendation, and applies the same standard to existing dwellings, with an inspection where permitted alterations, repairs or additions occur or a sleeping room is added. Its location rule adds a point worth knowing everywhere: where a fuel-burning appliance is located within a bedroom or its attached bathroom, an alarm must be installed within that bedroom. Where more than one alarm is required in a dwelling unit, the code requires them to be interconnected so that actuating one sounds the others.

Two practical consequences follow. First, a requirement that applies on alteration means a permitted gas appliance replacement can bring alarm obligations with it, so ask before the work rather than at the inspection. Second, alarms have a service life and the units themselves state it; replacing them on that schedule is part of gas appliance upkeep even though no technician touches them.

There is no national gas licence in the United States. Fuel gas work is licensed by states and cities, and the scheme differs enough between them that the only correct answer is the local one. Seattle's published scheme is a useful illustration of what such a licence actually covers: a gas piping mechanic licence allows the holder to install gas piping from the meter to the appliance or to the point of use. It renews annually, may be reinstated within a year of expiry before the exam must be retaken, and requires an open-book exam on general, code and licensing knowledge passed at not less than 70 percent, with the candidate supplying a printed copy of the International Fuel Gas Code and the local amendments. Applicants must document at least twelve months of full-time experience as a gas piping mechanic or under the supervision of one, or six months plus a board-approved class, or hold a valid plumber's licence. The department publishes a trade licence search by name.

Permits sit alongside licensing and are divided by system rather than by visit. Seattle's mechanical permit covers heating, venting and air conditioning equipment and kitchen hood exhaust systems and expressly excludes gas lines, refrigeration, plumbing, sprinklers and boiler pressure vessels, each of which requires its own permit. Expect a comparable division wherever you are, and ask which permits your job needs and who is obtaining them.

Two more habits pay for themselves. Check the appliance model against CPSC's recall web service at SaferProducts.gov before work is authorised, since a recalled fault is remedied under the recall rather than billed to you and gas appliances appear there regularly. And register a new gas appliance with its manufacturer when it goes in, because that registration is how a future recall notice reaches you rather than passing you by.