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Secondary Suite Heating & Ventilation Requirements

Secondary Suite Heating & Ventilation Requirements

Posted by: tyler hinrichsen
Category: Building Codes
Nest Thermostat Closeup

Secondary Suite Heating & Ventilation Requirements

Heating & ventilation requirements for secondary suites are dependent on when the secondary suite was built. For suites built before 2006, you may be allowed to grandfather in a single heating system that is separated between both the primary and secondary dwelling. However for most suites two separate heating & ventilation systems are required.

Why are two heating systems required?

Safety: To limit the possibility of a fire & smoke spreading from one unit to the other through heating ducts.

Quality of Life: Ensure occupants in both the primary and secondary dwelling have direct control over the temperature of their living space.

Heating options

Several heating options are available:

  1. Dedicated Furnance
  2. Electric Baseboard Heating + HRV
  3. Hydronic Heating + HRV ( Provided there are separate zone controls for each unit )

If you are interested in a more in-depth analysis of secondary suite heating options take a look at the following article.

Analysis: Secondary Suite Heating Options

Author: tyler hinrichsen

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