Skip to content
Ready to start your project? Enter your ZIP to find local pros.
Please enter a valid 5 digit zip code
Technician with clipboard looking at air conditioner for manual j calculation

HVAC

A Complete Manual J Guide

Manual J Load Calculations: The Essential Guide to Sizing a Home HVAC System Correctly When a homeowner needs a new HVAC system, one of the most important — yet least understood — steps in the process is the Manual J load calculation. While many contractors still rely on outdated rules of thumb, the reality is…

installer checking AC unit

HVAC

What Is an ENERGY STAR Verified HVAC Installation?

Whether you realize it or not, there’s a lot going on beneath the hood of your air conditioner — and HVAC systems get even more complicated when you add in your home’s duct system, registers, heating units, and filters. With that much going on in your system, true efficiency is about more than just purchasing…