HVAC in Maine is a long heating season on oil, wood, or both, with salt air waiting for any outdoor machine on the coast. Boilers still heat capes and older town houses. Stoves carry places through a power cut if the flue is safe. A heat pump on a Downeast or County night needs a real backup, not a hope. That backup is the conversation. Say what actually heats the house when the lines are down, which they will be in a coastal storm and in an inland ice storm.
A cold ell, a short-cycling boiler, and a chimney wrong for the burner or the stove are separate faults. A fuel smell at a tank is not a filter visit. Creosote is a reason to stop improvising. Radiator valves leak and look like roof leaks. Spillage and a CO alarm end the experiment. Outdoor coils near the ocean corrode. Condensate lines freeze. You do not need the model plate to start the call. You need the fuel and the room.
Ductless heads get added to ells and porches the boiler never reached. They do not dry a granite cellar and they do not fix ice dams. Foggy coastal weeks load houses with moisture even when the temperature is only cool. A dehumidifier in a first floor that smells sweet may matter as much as cooling, and real cooling weather is the shorter part of the year. Window units left in all winter rattle in an onshore wind and rot the casing.
Power loss is part of the design problem, not an excuse. Know which pumps and ignitions quit. A stove that cannot be left is not backup for a week away. Tanks in cold basements weep. Mention every appliance on the flue. Island and outpost houses should say so, because a no-heat call with no road is a different kind of urgent.
Have the town, the fuels, and the symptom. Say no heat, a smell, salt-eaten outdoor gear, or a plan for backup. Mention how exposed the site is. Call the number on this page.