HVAC in Colorado Springs is heat at a higher elevation than Denver, plus a condenser that hail and wind both reach. Furnaces have to burn in thinner air, and a replacement copied from a lower city or from the old sticker alone can be the wrong fire. Heating season runs long. Nights drop hard. Cooling matters, and the outdoor unit takes dents from hail and grit from the wind. Foothill houses see colder mornings and more exposure. A pine needle mat on the outdoor coil is a local failure mode a basin city does not have. Filters load when the house stays closed. Downslope wind can disturb a flue.
Say heat or no heat first if that is the crisis. Does the furnace try. Is the flue intact. Ask whether combustion air and the heat exchanger are in the look. Ask whether new equipment is sized for this house at this elevation, and whether the ducts are worth keeping. Older ranches leak air. A new furnace on leaky ducts will not feel like the box you paid attention to on a spec sheet. If you only have a cooling complaint, say whether the fins are matted with needles, dented by hail, or simply silent. Ask what is ruled out before a compressor is blamed.
Condensate lines freeze here more readily than in a lower, milder city. Mention water at the air handler. Maintenance before the cold settles and a look after hail are both sensible. Neither is a substitute for a no-heat call on a windy night.
Thin air and a long night are the heating facts. Hail dents and a mat of needles are the cooling facts. Say both if both are true, and say how cold the house got on the last downslope night. A visit planned for a lower city will miss the fire and the debris on the coil.
Name the town side, the furnace, and whether the outdoor unit took hail or needles. Call the number on this page.