When building or buying a new home many items need to come together for completion of the home. Frequently, new homeowners focus on cosmetic items and costs, which they should. These are visual items you will see every day. Electrical wiring, plumbing, and furnace duct work are a requirement for the home, but are selected as more of a standard package to the home. Upgrades can be made with all of these trades. Usually both Lighting and Plumbing are top priorities because of the visual aspect of the fixtures.
It's quite common then, that Heating and Cooling systems are an afterthought. Home builders have selected this for you. They usually say the furnace is high efficiency and A/C ready. This may be good enough for most homeowners, but what if you are designing this house as your dream home? In any case, wouldn’t it be nice to know if the system you have in your home is properly sized and installed? Some simple questions and checks can be done to ensure your system is installed and working correctly for years to come.
What is a room by room heat load calculation? This is a calculation designed from manual J for the home load and manual D for the duct design. These manuals are used for industry standards for heating and air conditioning. It takes in all the measurements of each room, insulation of floor and ceiling, window r values, which direction the room faces, occupancy of the room, and construction materials. These item all of heat loss and heat gain values which determine your equipment size and ductwork size. Sounds complicated, it is. 95% of the new homes we service have oversized equipment, and ductwork deficiencies. Costing you more money in equipment operation and loss of efficiency up to 20-30%, along with comfort loss. If your builder looks at you with a lost look when you ask for it, be concerned. Remember the builder does not provide this, the heating contractor provides this to the builder and they provide this to you.