Design Services

We provide residential mechanical design services for heating, cooling and ventilation. A properly sized designed system helps mechanical contractors, builders and home owners improve comfort, efficiency, durability of equipment and improves air quality.

Our HVAC designs provide the proper documents for building permit applications, covering Sections 9.32, 9.33 and 9.36 of the National Building Code.

Why is it important to have a properly sized HVAC design from a certified design expert?

  • Maximum efficiency of the HVAC system.

  • Quiet operation.

  • Proper distribution of heating or cooling at all times of the year alleviating the problem of rooms that are too hot or too cold.

FMResidential (3 of 1).jpg

Heat loss calculations

Heat Loss/Heat Gain Calculations
Block load heat loss/heat gain calculations for new and replacement equipment provides proper equipment sizing for heating and air conditioning systems as required in section of the National Building Code. This allows for proper sizing of the furnace and air conditioner units. When this equipment is sized properly, the house is more comfortable for the occupants and more efficient, resulting in less energy usage and lower utility costs.

Room by Room Calculations
Room by room heat loss/heat gain calculations for design of distribution systems is required in section of the National Building Code. Going into this level of detail ensures comfort levels are even throughout the entire home. It ensures the proper amount of warm or cool air is supplied to each room, allowing for consistent temperatures and comfort levels regardless of where you are in the home.

FMResidential (4 of 2).jpg

Duct design

Duct Design for forced air heating and cooling systems as set out in Section of the National Building Code. We use the HRAI Digest method. Duct design ensures the proper amount of air actually reaches each part of the home as calculated in the room by room calculations. Regardless of where you are in the home, temperature and comfort levels are maintained.

FMResidential (3 of 2).jpg

Mechanical Ventilation Design

Mechanical Ventilation Design is required by Section 9.32 of the National Building Code. This provides the removal of stale air from the home and replaces it with an equal amount of fresh air to ensure a healthy environment for the homes occupants.



We provide energy modelling to demonstrate the efficiency of a new home before it is built. This is one of the methods used to demonstrate that the energy efficiency of a new home will meet the energy requirements of section 9.36 of the National Building Code.

AT FM Residential we can help with your building permit application by qualifying your new build to either the prescriptive method, the performance method (energy modelling), or government labeling programs such as Energy Star and EnerGuide for New Houses.

inspection (1 of 1).jpg

 Inspection Services

The Government of Canada provides a number of energy programs and certifications to measure, label and certify homes.

We provide inspection and labeling for these Federal Government programs including Energy Star for New Homes, R2000 and Energuide for New Houses.

Energy Efficiency programs offer site labels to identify the home’s compliance and certification. Some programs qualify a new home for rebates. See the links below to learn more about these programs.

Energy Program Website Links:

Genworth Energy Efficient Housing Program

CMHC Programs for Energy Efficient Programs