HVAC & Retrofit Systems

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Old House Online's Directory of suppliers and installers of HVAC and retrofit systems for classically-designed or older homes. Specialties include retrofitting older systems for energy efficiency; heating & air conditioning repair; ventilation systems, and more. 

SEE ALSO: Ceiling, Room & Whole-House Fans | Fireplaces, Inserts & Stoves | Hot Water | Radiators, Grilles, & Registers

Products of the Week

crown point kitchen
Kitchen Cabinetry

Crown Point Cabinetry

Crown Point Cabinetry offers custom cabinets for period style kitchens, baths, offices, laundry rooms, home bars and more. Styles include Shaker, Arts & Crafts, Early American, Victorian and Transitional.

Sponsored

Floor Outlet

SpacePak

The total solution for central cooling and heating in ANY home or small business; regardless of structure design, age, size or type of construction.

Featured

Floor Outlet

SpacePak

The total solution for central cooling and heating in ANY home or small business; regardless of structure design, age, size or type of construction.

Hi-Velocity Systems

Energy Efficient Central Heating, Cooling and Indoor Air Quality Systems for over 35 years. The Hi-Velocity Small Duct System fits where others cannot, removing 30% more moisture from the air than conventional systems, and eliminating hot and cold spots in the home or office.

Rheem

The only manufacturer of integrated heating, cooling and water heating solutions, including tankless, continuous hot water, an advanced hybrid water heater system, and residential pool and spa products.

Unico System

A central heating and cooling system using "aspiration" technology to warm and cool homes evenly and quietly with flexible small ducts that weave through ceilings, walls, and even floors.