There are many ways to heat a house. Heating systems range from the multi-controlled electric or hot-water heating systems to the relatively simple single space heater. In Canada, natural gas, oil and electricity are the most commonly used energy sources.
The three prevalent heating systems are: forced warm air, electric baseboards and forced flow hot-water heating. Other less frequently used systems are: air, ground or water source heat pumps with electric resistance back-up, heat pumps with natural gas back-up, and solid fuel-burning (wood or coal) furnaces.
Figure 108 illustrates a typical heating layout, while Figure 109 shows an isometric view of a typical heating system.
All types of heating systems may be safely and easily installed in wood-frame houses. Certain clearances, however, must be maintained between parts of the system and combustible material. Installers of heating equipment should be aware of local regulations before starting work.
For a warm-air heating system, the ducts for supply and return air are usually located between studs in walls and between joists in floors. When planning the house, locating joists, beams and studs to suit the requirements of the duct system must be considered.
Provision must be made for controlled ventilation when planning the heat distribution system of the house. Assuming good airtight construction, the ventilation system must be designed to exhaust house air (primarily from bathrooms and kitchen but also from other rooms) and draw in outside air so that the air quality of the house is maintained.
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