Today, standard furnaces are 80 percent efficient, while those with a rating of 90 percent or more are considered high-efficiency. Because all furnaces that generate heat with a flame produce ...

As winter temperatures plummet across the region, many homeowners are discovering that quality furnace installation service ...

The most commonly used system applies a MERV number (minimum efficiency reporting value ... systems called MPR (microparticle performance rating) and FPR (filter performance rating), respectively.