Fireplaces

Placing Central Air Conditioning at a house With Oil Heat Radiators

If yours is a home that does not have a forced air heating system, like residences with hot water radiator heat or wall registers, retrofitting a central air conditioning system can be a tough and costly proposition. In residences with forced-air heat ducts, you can install a central AC system and also spread cool air through the same ducts used for heating. But if your home lacks the heat ductwork, there are still ways to enjoy the advantages of centralized air.

Install AC Ducts

1 choice is to put ducts only for air conditioning. At retrofitting central air conditioning in houses with no existing forced air heating ducts, the evaporator coil and blower are installed in the loft area and rotating sheet-metal cooling ducts have been run into ceiling registers installed in minute- and also first-floor rooms. The condensing unit is installed outdoors, attached to the evaporator by sealed tube.

Duct Design

Normally, AC ducts for second floor rooms have been run across the loft floor and plunge down between loft floor joists to ceiling registers. In better than 90 percent of residences, air-conditioning ducts feeding first-floor rooms could be run down through second-floor closets to ceiling registers on the first floor. Most metal ducts are rotating, measuring 12 by 6 inches or 10 by 8 inches, so they don’t take up closet space.

Ductless Split System

Another choice is to install a ductless split program. In such systems, the condensing unit is set up outdoors, but feeds multiple evaporator fan components installed in numerous rooms. The evaporator units, installed one room, are connected into the condensing unit by sealed tube that carries the refrigerant. Every single evaporator has its own fan and thermostat, enabling you to set cooling levels separately for each room. These systems could be up to 30 percent more costly than traditional centralized cooling but are also good when you only want to cool specific rooms. Ductless systems that both heat and cool, are also available, which makes this a high-efficiency solution for complete climate control.

High-Velocity AC

You may also choose a high-velocity central air system. These systems utilize traditional heaters and evaporators but have a special compressor which distributes cooled air at high pressure and velocity through small, flexible, insulated ducts that can easily be run in which you want them, without having to rip out walls or ceilings. The insulated ducts are often as small as 2 inches in diameter, and also can provide cooled air to a room in up to 1,200 cubic feet per minute. The small ducts connect to curved chamber air outlets about 5 inches in diameter. Baffles in the ducts decrease noise.

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