WaterFurnace ground source heat pumps offer exceptional savings and comfort for your home — with a much longer lifespan than normal HVAC equipment. But that doesn't mean that they're always perfect. As with many mechanical products, certain components can sometimes fail. That's where our great warranties come into play so you can have peace of mind for years to come. Our robust warranties cover parts, accessories, and a labor allowance for up to 5-10 years depending on the system, but there are also a few other options available if you so choose.