Heating & Cooling in Columbia Heights, MN

Central Minnesota Heating and Cooling serves Columbia Heights and the rest of Anoka County, about 4 miles from downtown Minneapolis. We repair and replace furnaces, central air, heat pumps, boilers and ductless mini-splits, and we're open 7 days, 7am–9pm. Call 612-429-3465.

A flat $79 trip charge, waived when you approve the repair. Written price before any work; same prices in every town we serve. Installed prices are on our pricing page.

Keep the boiler for winter and add cooling separately. Ductless mini-splits need one indoor head per area and a small hole for each line set, and as heat pumps they can take over some heating in spring and fall. A small-duct high-velocity system hides flexible tubing in closets and the attic instead. Either way, the radiators and plaster stay untouched.

Many houses from this era have one large central return, often in a floor grate or hallway wall. With a bedroom door shut, air pushed into the room has no easy way back, so it stays stuffy and the supply barely flows. Transfer grilles above the doors, jumper ducts through the ceiling, or a return in each bedroom fix it; trimming the bottom of the door helps a little.

It works, but not as well as it heats. Gravity-era supply registers often sit low on inside walls or in the floor, fine for rising warm air but poor for cooling, since cold air pools near the floor. The big old ducts move air easily; the trouble is usually too few returns and no duct at all to the second floor. Adding an upstairs return, or pairing central air with a ductless head upstairs, fixes most of it.

Maybe not, but it should be checked. Older boiler systems use a plain steel expansion tank strapped between the joists that holds a cushion of air. When it fills with water, pressure spikes each time the boiler fires and the relief valve drips. The tank can be drained and recharged, or replaced with a smaller diaphragm tank. A dripping relief valve or pressure that swings widely is the sign.