What to Know When Investing in Heating

Because the heating needs of every dwelling are different, the first step when designing a central heating system is to make accurate heat loss calculations based on these important factors:

  • The dwelling size (cubic area)
  • Materials used for construction
  • Aspect (ie, north or south facing, etc)
  • Size and number of external walls
  • Number of windows and doors

All these factors affect the heat loss of a home. The location of the home within New Zealand is also an important factor, as temperature extremes vary greatly from place to place.

How do windows effect your heating bills?How do windows affect your heating bills?

House design very much affects the heating system performance and efficiency. Windows are the most significant factor affecting the heating system.
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Central heating should be designed to achieve World Health Organization recommendations for room temperatures:

  • 21°C in living areas, kitchens, studies, etc with 1.5 air changes per hour
  • 18°C in bedrooms, hallways, etc with 1 air change per hour
  • 22°C in bathrooms with 2 air changes per hour
  • 18°C minimum in any room of the home
There are a variety of factors that affect central heating system design, which makes each home a unique project with a unique solution.

There are a variety of factors that affect central heating system design, which makes each home a unique project with a unique solution.

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