A failing furnace usually shows it before a January night in Concord or Berlin.
- Short cycling.
- Rooms that never catch up.
- Burning dust that does not clear, or a sulfur smell — leave and call if you suspect a gas leak.
- Yellow burner flame on a gas furnace.
- Water or rust on a high-efficiency cabinet.
- Fuel or electric use that jumped with no change in how you heat.
An independent contractor inspects the heat exchanger, inducer, igniter, filter, and venting, then quotes the repair. Verify license and insurance. Call (603) 420-0791.
Related: furnace repair.
Cities, towns, and ZIP codes
Manchester 03101–03104, 03109 · Nashua 03060, 03062–03064 · Concord 03301, 03303 · Portsmouth 03801 · Dover 03820 · Rochester 03867 · Derry 03038 · Salem 03079 · Merrimack 03054 · Londonderry 03053 · Hudson 03051 · Bedford 03110 · Goffstown 03045 · Hooksett 03106 · Keene 03431 · Laconia 03246 · Exeter 03833 · Hampton 03842 · Durham 03824 · Claremont 03743 · Lebanon 03766 · Hanover 03755 · Somersworth 03878 · Milford 03055 · Windham 03087 · Pelham 03076 · Berlin 03570 · Littleton 03561 · Conway 03818 · Plymouth 03264. More towns on places.