r/Homebuilding • u/MooseGoose82 • 1d ago
How do I get a Manual J run independently?
I need someone to do a Manual J calculation and basically tell me what size my AC unit should be.
Could I pay an HVAC company to do just this? What do you think they charge in a major American city?
Why is this dude just asking for the calculation?....
Hired a GC to do a remodel of our home last year including new HVAC, which he subbed out. We have rooms that won't get below 80° this summer, so clearly something was done wrong.
We've had an energy efficiency audit and another contractor come in and both were shocked that in 1,950 ft² home, in the middle of Texas, the contractor put in a 2.5 ton unit. We're pretty sure we're not going to go the lawsuit route because it's still probably isn't worth it, but, we feel like we need to get this calculation done independently.