The ABC’s of Heating – Modulating Gas Furnaces
Over the last decade or so gas furnace technology has advanced considerably, with AFUE efficiency ratings now exceeding 95 percent. Many furnaces manufactured in the 1990s had efficiency ratings in the 60 percent range. One of the main reasons for this dramatic increase in efficiency is modulating gas furnace technology.
Traditional single or two-stage furnaces operate at fixed rates and will often exceed the preset temperature before shutting off, resulting in wide temperature swings. A modulating furnace is able to adjust it’s gas input, inducer speed, and blower airflow to operate at 1 percent increments from 35 to 100 percent, providing more accurate control over temperature. While it may run more often, it can do so at a lower rate than a two-stage furnace.
The advantages of modulating furnaces include increased comfort, reduced operating costs and quieter operation. With a two-stage furnace you may notice a change in temperature right before your furnace turns on and right after the furnaces shuts off. With a modulating gas furnace, the temperature change will be imperceptible.
Have questions about high efficiency gas furnaces? Give us a call, we’re here to help.
Neighbors Are Saying About ABC
“Keith and his crew were top notch. Calm/cool, trustworthy, efficient, respectful, reliable, thorough, communicative and reassuring. And at the end of the day, quality work! For the bigger projects, I feel confident knowing we have a go-to service to call.”–
“ABC Plumbing, Heating, Cooling and Electric are fantastic. I recently used them to replace my sump pump, which had exploded! They were very friendly on the phone and Rick H., our technician was fantastic. He explained things thoroughly, we was efficient and very nice. Will definitely be using him and…”–
“On only a day's notice, Adam came very prepared. He knew immediately what was the issue in each case. He replaced one toilet and repaired another. The bathrooms were left in great order and very clean. I am looking forward to having more work done by Adam and ABC.”–
“ABC was reliable and professional. Mike G was our technician and was a pleasure to work with. Down to earth, no pressure and gave you a straight answer to what you needed. Felt like I got an honest appraisal and was given a great quote. Will be calling them back…”–
“You never know for sure what you'll get when you need a contractor in a pinch. I chose ABC Plumbing out of my 2017 Best Picks Report for contractors because ABC was their top choice. After working them, I will use them again and tell everyone who needs this kind…”–
“EXCELLENT and FAST service provided by ABC plumbing and superb work at our home provided by Tom Glaza. He fielded, diagnosed and fixed all electrical issues. Tom is knowledgeable, friendly, efficient and explains everything in detail to customer so you know what he is fixing and gives accurate up front…”–