When to replace your furnace

When to replace your furnace

If your furnace is 15 years old or more, now might be the right time to exchange it for a more efficient model. The obvious reason is to reduce your energy costs, keeping in mind that winter is on its way. Data from the U.S. Department of Energy show that if your...
When to replace your thermostat

When to replace your thermostat

Aging UnitIf your heating or air conditioning unit is more than 15 years old, you’re almost certain that its thermostat may need replacing. Look out for any signs that the thermostat’s wiring has aged. Energy EfficiencyEven if both your thermostat and...
When to replace your ducts

When to replace your ducts

If you have a forced air furnace or central air conditioner, you’ll have ductwork that carries the warm and cool air your equipment creates to different rooms in the house. Ducts are typically sheet metal or flexible. If you have flexible ducts and they are over...
When to have your furnace serviced

When to have your furnace serviced

Particularly if you’ve just purchased a new furnace, it’s probably not something you think about all that much. As long as it works when you need it to, that is. Unfortunately you usually find out that something is wrong with your furnace just when you need it most....
Chilled water systems

Chilled water systems

A chilled-water applied system uses chilled water to transport heat energy between the airside, chillers and the outdoors. These systems are more commonly found in large HVAC installations, given their efficiency advantages. The components of the chiller (evaporator,...
Forced ventilation systems

Forced ventilation systems

Mechanical or “forced” ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess...