Use the questionnaire below to determine which product is best suited to your needs.




The result remains an approximation, elements other than those mentioned may influence the real needs.
Expert advice is recommended.



before 1985 yes 1 4 - 7 750 - 1000 sqft 2 - 3 12000
before 1985 yes 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
before 1985 yes 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
before 1985 yes 1 8 - 15 750 - 1000 sqft 2 - 3 18000
before 1985 yes 1 8 - 15 1000 - 2000 sqft 2 - 3 18000
before 1985 yes 1 8 - 15 1000 - 2000 sqft 4 - 6 18000
before 1985 yes 2 4 - 7 750 - 1000 sqft 2 - 3 18000
before 1985 yes 2 4 - 7 1000 - 2000 sqft 2 - 3 2x 12000
before 1985 yes 2 4 - 7 1000 - 2000 sqft 4 - 6 2x 12000
before 1985 yes 2 8 - 15 750 - 1000 sqft 2 - 3 18000
before 1985 yes 2 8 - 15 1000 - 2000 sqft 2 - 3 2x 12000
before 1985 yes 2 8 - 15 1000 - 2000 sqft 4 - 6 2x 12000
before 1985 no 1 4 - 7 750 - 1000 sqft 2 - 3 18000
before 1985 no 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
before 1985 no 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
before 1985 no 1 8 - 15 750 - 1000 sqft 2 - 3 2x 12000
before 1985 no 1 8 - 15 1000 - 2000 sqft 2 - 3 2x 12000
before 1985 no 1 8 - 15 1000 - 2000 sqft 4 - 6 2x 12000
before 1985 no 2 4 - 7 750 - 1000 sqft 2 - 3 18000
before 1985 no 2 4 - 7 1000 - 2000 sqft 2 - 3 2x 12000
before 1985 no 2 4 - 7 1000 - 2000 sqft 4 - 6 2x 18000
before 1985 no 2 8 - 15 750 - 1000 sqft 2 - 3 2x 12000
before 1985 no 2 8 - 15 1000 - 2000 sqft 2 - 3 2x 12000
before 1985 no 2 8 - 15 1000 - 2000 sqft 4 - 6 24,000 ou 2x 12,000
Year of construction Renovated Building Number of floors (excluding basement) Number of windows Surface area of the dwelling Number of occupants Nominal power (Btu/hr)
from 1986 to 2000 yes 1 4 - 7 750 - 1000 sqft 2 - 3 12,000
from 1986 to 2000 yes 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 yes 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 1986 to 2000 yes 1 8 - 15 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 yes 1 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 yes 1 8 - 15 1000 - 2000 sqft 4 - 6 18000
from 1986 to 2000 yes 2 4 - 7 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 yes 2 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 yes 2 4 - 7 1000 - 2000 sqft 4 - 6 2x 12000
from 1986 to 2000 yes 2 8 - 15 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 yes 2 8 - 15 1000 - 2000 sqft 2 - 3 2x 12000
from 1986 to 2000 yes 2 8 - 15 1000 - 2000 sqft 4 - 6 18,000 ou 2x 12,000
from 1986 to 2000 no 1 4 - 7 750 - 1000 sqft 2 - 3 12000
from 1986 to 2000 no 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 no 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 1986 to 2000 no 1 8 - 15 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 no 1 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 no 1 8 - 15 1000 - 2000 sqft 4 - 6 18000
from 1986 to 2000 no 2 4 - 7 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 no 2 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 1986 to 2000 no 2 4 - 7 1000 - 2000 sqft 4 - 6 2x 12000
from 1986 to 2000 no 2 8 - 15 750 - 1000 sqft 2 - 3 18000
from 1986 to 2000 no 2 8 - 15 1000 - 2000 sqft 2 - 3 2x 12000
from 1986 to 2000 no 2 8 - 15 1000 - 2000 sqft 4 - 6 2x 12000
Year of construction Renovated Building Number of floors (excluding basement) Number of windows Surface area of ​​the dwelling Number of occupants Nominal power (Btu/hr)
from 2000 to 2023 yes 1 4 - 7 750 - 1000 sqft 2 - 3 12,000
from 2000 to 2023 yes 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 2000 to 20233 yes 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 yes 1 8 - 15 750 - 1000 sqft 2 - 3 12000
from 2000 to 2023 yes 1 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 yes 1 8 - 15 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 yes 2 4 - 7 750 - 1000 sqft 2 - 3 18000
from 2000 to 2023 yes 2 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 yes 2 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 yes 2 8 - 15 750 - 1000 sqft 2 - 3 18000
from 2000 to 2023 yes 2 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 yes 2 8 - 15 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 no 1 4 - 7 750 - 1000 sqft 2 - 3 12000
from 2000 to 2023 no 1 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 2000 to 20233 no 1 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 no 1 8 - 15 750 - 1000 sqft 2 - 3 18000
from 2000 to 2023 no 1 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 no 1 8 - 15 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 no 2 4 - 7 750 - 1000 sqft 2 - 3 18000
from 2000 to 2023 no 2 4 - 7 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 no 2 4 - 7 1000 - 2000 sqft 4 - 6 18000
from 2000 to 2023 no 2 8 - 15 750 - 1000 sqft 2 - 3 18000
from 2000 to 2023 no 2 8 - 15 1000 - 2000 sqft 2 - 3 18000
from 2000 to 2023 no 2 8 - 15 1000 - 2000 sqft 4 - 6 18,000 ou 2x 12,000