HVAC in Alaska is a no-heat problem on a machine that may not rest for months. On the southcentral coast, boilers and furnaces carry houses built for cold first. A mild-city heat pump story is the wrong opening. Wind off Cook Inlet buries terminations in drift. Ducts in a crawl lose the heat before the far room sees it. Say what the equipment did on the last hard night.
Combustion air, the flue, and the heat exchanger come before comfort talk. If you smell trouble, stop the unit and get people to fresh air. Intake pipes ice over or vanish in a drift on the inlet side. A condensate line can freeze and shut the heat off while the thermostat still calls. A boiler that makes hot water is a different failure from a furnace. Name the machine.
Earthquakes are a standing concern, and a flue or a fuel line that shifted after shaking is not a filter visit. Say if the house moved under you. The short building season is the sane time to replace equipment, and a dead system in the dark does not offer that choice. Say if the house is cold now. Efficiency labels compare a test. They are not a promise about your fuel.
Rooms over a crawl and additions that were never tied to the heat are where a lazy duct plan shows. A thermostat in a sunny room lies during the long daylight and lies again when the dark returns. Oil, propane, or town gas matters. A deep setback in a house nobody is heating tonight matters just as much. A wood stove is not a stand-in if the primary system is down.
Say heat, the town, and whether the unit is dead or only losing rooms. Mention ice on a termination, a frozen drain, or a shake that moved the flue. If the house is cold, say that first. These nights do not negotiate. Call the number on this page.