No furnace lasts forever, but determining the ideal time to replace your home’s heater isn’t always easy. Whether you’re faced with frequent repairs or you’re fed up with poor heating performance, the following telltale signs can indicate when it’s time to replace your furnace. If your furnace is more than 10 years old: The lifespan of a well-designed furnace averages … [Read more...] about When is it time to replace your furnace?