One of the most popular and efficient means of heating a house, a gas furnace operates on a very simple principle, known as heat exchange. Cold air is pumped into the furnace’s heat exchanger from throughout the house. It passes through an air filter to ensure that you’re not breathing in dust or unnecessary particulate matter. The air is then heated by a gas flame and pumped throughout the house. The gas flame, known as a pilot light, is always on, running at a very low burn. When the house starts to get cold, or when you change the thermostat, more gas is pumped in and the flame gets bigger.


While this may sound like a simple concept, each part along the way – the air pumps, filtration system, gas supply lines, pilot light, and exhaust system for waste gas – can have issues. At Temperature Control Corp, we have the experience to be able to identify the problem, and the expertise to know how to fix it.


Now, in recent years, we’ve seen the introduction of a brand-new type gas furnace: the high-efficiency condensing gas furance. As the name suggests, these are incredibly efficient, with around 90% of the gas that comes into the furnace is converted to heat, and only 10% is lost to exhaust – unlike some of the old furnaces, where as little as 20% of gas was used properly. A high-efficiency furnace not only means a lower environmental impact and a much lower impact on your wallet, but it also means that the furnace doesn’t have to work as hard and therefore is likely to last longer.


However, the high-efficiency furnances do work a bit differently than the old models, as so require special knowledge to install, and Temperature Control Corp has that knowledge. Just like the older models, high-efficiency furnaces work by pulling in cold air, filtering it, heating it up using a gas flame, and then blowing it throughout the house – but the difference comes in how heat is extracted and how waste combustion gases are extracted. In the old models of furnace, combustion gases go through a single round of heat extraction and then are immediately exhausted from the furnace. The high-efficiency furnaces go to a second level of heat extraction, where the gases have time to condense and cool within the furnace, meaning more heat is extracted.


This more complex heating system requires a more complex installation. Additional piping must be installed for the condensing system, sometimes a filter or pump is required, and, unlike with older furnaces, exhaustion is normally done directly to the outside, which means installing a vent to an exterior wall.


It’s a more complex system, but the potential savings may quickly make a high-effiency gas furnace a better option. Call Temperature Control Corp out for a consultation. We’ll be able to assess how efficiently your current furnace is working, how difficult it would be to upgrade, and how much you’d save by doing so. And, if it makes sense to you to upgrade, we can do that for you too.