HVAC

Dampers for Ductwork

If you heat your home using hot air blown through ducts then chances are you’ll need a system of hot air control using dampers for ductwork. The reason for this is quite straightforward in that from the source of the hot air, the temperature and pressure at which it is pushed into the ductwork system will be very high, but they might not be the levels at which you want it to enter all of the different rooms. To get around this, a series of Volume Control Dampers (VCD) can be deployed inside the ductwork to give manual or automatic control of the air flow.

Fiberglass Duct Boards

Whatever the reason for needing to install duct boards for an air flow system, you can save yourself a whole bundle of money by using fiberglass duct boards over aluminum ones, or even molded plastic ones. Not only is fiberglass a cheaper material to work with, it will also provide far superior insulation for the ducting.

Fiberglass is an excellent sound and heat insulating material, making it ideal for use in an air ducting system on two levels. First of all it will keep the air warm, in the case of a hot air ducting system, or it will keep the air cool if the ducting is being used to direct air from an air conditioning unit.

Refrigerant Piping Lines

The refrigerant in an air conditioning system or air conditioner is transported to the different components in it through copper piping of small diameter called refrigerant lines. The line that carries liquid refrigerant from the condenser or receiver to a pressure reducing device is called the liquid line. Between the evaporator and the compressor inlet, the line is called the suction line.

Control of Indoor Humidity

Excess moisture in the air of your home not only affects your comfort and health, but can undermine the structural integrity of the house as well. High humidity promotes growth of microorganisms like molds, bacteria and viruses. Low humidity causes dries out respiratory linings, shrinks and warps wood and other materials, and causes cracking in walls and some flooring materials. That is why controlling humidity to the proper levels is so important.
But where does humidity inside a house come from? There are various sources:

- Soil moisture penetrating walls and floors of basements
- Outdoor air coming through cracks, holes and gaps in windows and door

Gas Water Heater Vent Pipe

Any gas appliance such as a water heater or furnace needs to transport the combustion gases safely out of the indoors environment. In order to make a vent, one of three types of pipe are typically used, Triple Wall, also called chimney pipe, Double Wall or Single Wall.

Triple Wall pipe, used mostly for chimneys, has an inner stainless steel liner and two outer liner walls made of either stainless or galvanized steel. It is almost never used for gas fired venting, being considered too expensive, and is reserved for coal, wood or oil burning appliances. However, it can act as a substitute for Type B (Double Wall) pipe if required.