Fall furnace and boiler check: get ready before the first cold night.
Cool nights are already here in Warren County. Before you need the heat for real, take a few minutes to make sure your furnace or boiler will come on, run safely and keep running. Here's what you can check yourself, what to watch for, and when to call.
Why check the heat now, not in December
Most no-heat calls happen on the first really cold nights, when every system in the area gets switched on at once and small problems that sat quiet all summer finally show up. A furnace or boiler that has been idle for months can have a clogged filter, a weak igniter, a stuck circulator or a thermostat with dead batteries, and you won't know until you need it.
Turning the heat on for a test run on a mild fall afternoon gives you time to fix a problem on your schedule instead of waiting in a cold house. It works the same way for a home in Phillipsburg or Washington and for a shop, office or rental building anywhere in Warren, Hunterdon, Sussex, Morris or Somerset County.
Safety first: if you smell gas
If you smell gas at any point, don't flip switches, don't try to relight anything, and don't look for the leak. Leave the building, get everyone out, and call your gas utility or 911 from outside. Once the utility says it's safe, call a heating contractor to check the equipment.
While you're thinking about safety, test your carbon monoxide and smoke alarms and replace the batteries if they need it. Any home or building with a fuel-burning furnace, boiler or water heater should have working carbon monoxide alarms, especially near sleeping areas.
A 15-minute fall check you can do yourself
None of these steps require tools or opening up the equipment. If something looks wrong, stop and call rather than taking panels off.
- Thermostat: Replace the batteries if it uses them, switch it from cool to heat, and set it a few degrees above room temperature. You should hear the system start within a few minutes.
- Filter (forced air systems): Pull the furnace filter and hold it up to a light. If you can't see light through it, replace it with the same size printed on the frame. A clogged filter is one of the most common reasons a furnace overheats and shuts itself off.
- Power and switches: Make sure the furnace or boiler service switch is on and the breaker hasn't tripped. The service switch often looks like a regular light switch near the unit or at the top of the basement stairs.
- Clear space: Move storage boxes, laundry, paint cans and anything flammable away from the furnace, boiler and water heater. Equipment needs air around it to burn properly and to be reached for service.
- Vents and registers: Open supply vents and make sure furniture and rugs aren't blocking them or the return grilles. For hot water or steam heat, make sure radiators and baseboard fins aren't covered.
- Outside: Look at where the exhaust and intake pipes leave the house. Clear leaves, nests or debris, and plan to keep them clear of snow this winter.
- First run: A faint dusty or burning smell for the first few minutes is common as dust burns off the burners. It should fade quickly. If it doesn't, or it smells like gas or electrical burning, shut the system off and call.
Warning signs to call about now
These are worth a service call before the weather turns, not after:
- The system won't start, or starts and shuts off after a short time.
- Some rooms heat and others stay cold.
- Banging, squealing, grinding or loud rumbling when it runs.
- A yellow or flickering burner flame instead of a steady blue one, or soot around the unit.
- Water around a boiler, or a boiler pressure gauge that reads well outside its normal range.
- Radiators that stay cold at the top or baseboard that ticks and gurgles more than usual.
- A carbon monoxide alarm that has gone off, even once. Get everyone out, call 911 or the gas utility, and don't run the heat until it has been checked.
Furnace or boiler: what a fall tune-up covers
A furnace heats air and pushes it through ducts. A boiler heats water and sends it, or steam, to radiators or baseboard. Both burn fuel or use electricity, and both benefit from a seasonal check by a heating technician.
A tune-up generally means cleaning and inspecting the burner and ignition, checking the flame and venting, testing safety controls, and looking at the parts that move air or water: the blower on a furnace, the circulator, expansion tank and relief valve on a boiler. The technician can also tell you if anything is wearing out so you can plan for it instead of being surprised.
If you run a business, it is also a good time to look at heat in spaces people don't use every day, like storage rooms and back hallways, where pipes can freeze if the heat quits over a weekend.
Repair now or plan a replacement?
A fall check is the best time to have this conversation. If your system has needed repeated repairs, struggles to keep the house comfortable, or the technician finds a problem with a major part, it may make more sense to plan a replacement on your own terms than to have it fail on the coldest night of the year.
If you're weighing options, ask about the whole system: the equipment, the ductwork and how the heat is delivered. New Ark handles heating replacement, duct system installation and retrofitting, and geothermal systems for existing homes, so you can compare paths with one contractor. You can request a written estimate online and review it before you approve anything.
Get your heat checked before the cold comes
New Ark Plumbing, Heating & Air Conditioning works out of 412 Firth St in Phillipsburg and serves homes and businesses in Warren, Hunterdon, Sussex, Morris and Somerset counties. Every call is answered 24/7, emergencies go first, and we're licensed and insured in New Jersey with four decades of industry experience. Call 908-454-4043 to schedule a fall heating check, or see heating repair and service.