My 13 year old Lennox coil needs to be replaced. The consensus sems to be don't replace just the coil but rather replace the entire system.
The first question I have is what should should the minimum seer rating be on my new system.
Secondly, is there a particular brand of system that is much better - or worse for that matter - than the rest? A couple of Bryant systems have already been recommended to me, one with a seer of 13 and the second one with a seer of 15. I live in southern Ontario, Canada so their is a need for air conditioning here for only about four months of the year.
condenser and coil are both 13 yrs old?
if electric rate is reasonable as I believe it is for your location, then a plain jane 13 SEER condenser with matching coil would be just fine.
13 SEER is the minimum rated federal standard here in the states.
Think Heat Pump / Dual Fuel
Use 13 SEER A/C ...
... ... ... ... .
15 SEER Heat Pump will save about $24 in cooling season for Southern Ontario.
It's Not Rocket Science, But It is SCIENCE
with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE
Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities
Unless you put a matched variable speed indoor unit in, you won't be getting 15 SEER from a "15 SEER" Bryant A/C. Dan's right, not much savings on high SEER up your way, here either.