Within the next year, I proposal to substitute the forced air furnace & central undefined in our home. This will be a truly big & costly project, with a huge impact on the comfort, efficiency, & health of our home. I hope to make smart decisions & like maximum return from our investment. I’ve spent the last six months researching different manufacturers & models of heating & cooling equipment. I’ve learn customer reviews, consumer reports & asked friends, neighbors & family members for advice. I’ve learned all about advanced technology, current engineering & innovative features. I’ve figured out that choosing a reputable & conscientious Heating & Air Conditioning corporation is more crucial than the make or model of the equipment. The furnaces & undefineds are all truly similar, with virtually identical features & warranty coverage. The reliability, capacity, efficiency & longevity of the heating & cooling proposal is directly influenced by the integrity of design & replacement. Very often, Heating & Air Conditioning corporations will oversize the components simply because it’s easier. Rather than take the time & effort to accurately calculate heat gain/loss, the just suggest a larger system. The greater proposal costs more to both purchase & operate. It will then heat up or cool down the lake house so suddenly, that it will never reach full efficiency. It will also start up & shut down more frequently, creating temperature swings & suffering excessive wear & tear. This will lead to malfunction & shortened repair life. I need a corporation who will perform a J Manual load calculation to determine the exact size of furnace & undefined necessary for our home.