Spec PlanI: HVAC

what's on this page
Spec Plan-I looks at your home's heating and cooling systems (HVAC) and control monitors. Check out the new alternative HVAC systems to reduce home energy costs.


Page Topics:

  1. about HVAC
  2. getting started
  3. building spec sheet
  4. spec budgeting worksheet
Spec Plan Navigation
planJ: insulation
planH: electrical wiring

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Spec Plan I: Heating and Cooling

what you need to do —

Select type of HVAC system:

— gas heat
— radiator distribution
— centralized air, etc.

  • Note type of HVAC and distribution system. Also note any alternative energy systems such as solar, wind, etc.
  • Consider split HVAC zones for 2-story homes or for homes larger than 2500 sq. feet.


Take a look at climate control systems that can pay for themselves over time.

  • Double check placement of air registers and other duct work. Registers should be place under windows for better air circulation and not in areas of the room that impede the placement of furniture.
  • Ask your local utility, gas company, or HVAC supplier for an energy audit. They will recommend the most efficient placement for HVAC systems. A little extra design can save you later in lost energy costs.
  • Your duct system should support air flow for allergy control and other potential irritants.


Visit our Home Building Showcase for complete information on HVAC and air quality:

view center: heating and cooling
view center: air quality


Check mechanical codes:

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Getting Started

Step 1: develop the plan

  • take a completed draft of the spec sheet to your architect or planner, who will can customize a building plan or revise an existing plan that meets your specs.
  • use your spec sheet and floor plan to bid the construction project to contractors


Step 2: get required building permits


Step 3: find pre-screened contractors and other service providers

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Get Some Professional Help

Sample Heating-Cooling
Use this quick search to find customer-rated HVAC contractors.