It's perfectly acceptable to have a high-efficiency furnace installed with one pipe. Just flip through the pages of any high-efficiency furnace installation manual and you'll find the answer. I'm ...

A very small number of Americans live in mountainous regions, which is why many HVAC professionals may not even know that gas-fired furnaces installed at higher altitudes usually require modifications ...

LAS VEGAS — With energy prices due to rise, customers are looking for high-efficiency furnaces that will reduce their energy bills while still providing optimal comfort. They also want smart, ...

Last week I began a reply to J. McC.’s questions about replacing his 1920s gravity warm air furnace (the “octopus”) with a new forced-air furnace. He was also concerned about how to find a ...

On Friday, Oct. 10, CL Linfoot, a heating and cooling company, installed a Lennox high-efficiency furnace and air conditioner in John Nordine’s Grand Forks home. C.L. Linfoot employees Chuck Savage, ...